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tmpa921.exe

The executable tmpa921.exe has been detected as malware by 1 anti-virus scanner. It is set to automatically start when a user logs into Windows via the current user run registry key under the display name ‘YccwPack’. While running, it connects to the Internet address ve604.venus.fastwebserver.de on port 443.
MD5:
472224ddb9c492450f8ae5729cdde8f1

SHA-1:
22ac88fb463fc4bc1ade9374e58162592fd28f98

SHA-256:
c5d834924dd935ecee401d0b3c41d69b7897351e3c8b425830c1a9b6fae7356e

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
12/25/2024 5:45:13 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Threat.Win.Reputation (M)
17.3.3.23

File size:
377.1 KB (386,115 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\ProgramData\microsoft\performance\theftprotection\temp\tmpa921.exe

File PE Metadata
Compilation timestamp:
4/21/2016 2:01:20 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

Entry address:
0x32A0

Entry point:
81, EC, D4, 02, 00, 00, 53, 56, 57, 6A, 20, 5F, 33, DB, 68, 01, 80, 00, 00, 89, 5C, 24, 14, C7, 44, 24, 10, E0, A2, 40, 00, 89, 5C, 24, 1C, FF, 15, B0, 80, 40, 00, FF, 15, AC, 80, 40, 00, 66, 3D, 06, 00, 74, 11, 53, E8, 4F, 31, 00, 00, 3B, C3, 74, 07, 68, 00, 0C, 00, 00, FF, D0, BE, B8, 82, 40, 00, 56, E8, C9, 30, 00, 00, 56, FF, 15, 5C, 81, 40, 00, 8D, 74, 06, 01, 80, 3E, 00, 75, EA, 55, 6A, 09, E8, 21, 31, 00, 00, 6A, 07, E8, 1A, 31, 00, 00, A3, E4, 4E, 43, 00, FF, 15, 3C, 80, 40, 00, 53, FF, 15, A4, 82...
 
[+]

Code size:
25 KB (25,600 bytes)

Startup File (User Run)
Registry location:
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Name:
YccwPack

Command:
C:\users\{user}\appdata\local\yccwpack\tmpa921.exe


The executing file has been seen to make the following network communications in live environments.

TCP (HTTP SSL):
Connects to 62-210-250-215.rev.poneytelecom.eu  (62.210.250.215:443)

TCP (HTTP SSL):
Connects to ve604.venus.fastwebserver.de  (89.163.140.97:443)

TCP (HTTP):
Connects to a184-28-188-106.deploy.static.akamaitechnologies.com  (184.28.188.106:80)

TCP (HTTP SSL):
Connects to r-199-59-148-84.twttr.com  (199.59.148.84:443)

TCP (HTTP SSL):
Connects to static.95.125.201.138.clients.your-server.de  (138.201.125.95:443)

TCP (HTTP SSL):
Connects to static.89.125.201.138.clients.your-server.de  (138.201.125.89:443)

TCP (HTTP SSL):
Connects to static.86.110.243.136.clients.your-server.de  (136.243.110.86:443)

TCP (HTTP):
Connects to server-54-192-87-153.lax3.r.cloudfront.net  (54.192.87.153:80)

TCP (HTTP SSL):
Connects to r-199-59-149-243.twttr.com  (199.59.149.243:443)

TCP (HTTP):
Connects to ox-173-241-250-143.ca.dc.openx.org  (173.241.250.143:80)

TCP (HTTP):
Connects to oneads-sspums-adtech-scd-blue-b.evip.aol.com  (152.163.20.130:80)

TCP (HTTP SSL):
Connects to nextadnet.com  (46.229.172.224:443)

TCP (HTTP):
Connects to ec2-54-87-224-152.compute-1.amazonaws.com  (54.87.224.152:80)

TCP (HTTP):
Connects to ec2-54-84-234-136.compute-1.amazonaws.com  (54.84.234.136:80)

TCP (HTTP SSL):
Connects to ec2-54-225-178-247.compute-1.amazonaws.com  (54.225.178.247:443)

TCP (HTTP):
Connects to ec2-52-52-71-203.us-west-1.compute.amazonaws.com  (52.52.71.203:80)

TCP (HTTP SSL):
Connects to ec2-52-52-192-52.us-west-1.compute.amazonaws.com  (52.52.192.52:443)

TCP (HTTP):
Connects to ec2-52-43-24-25.us-west-2.compute.amazonaws.com  (52.43.24.25:80)

TCP (HTTP):
Connects to ec2-52-42-204-63.us-west-2.compute.amazonaws.com  (52.42.204.63:80)

TCP (HTTP):
Connects to ec2-52-26-29-118.us-west-2.compute.amazonaws.com  (52.26.29.118:80)

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