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sync.exe

The executable sync.exe has been detected as malware by 9 anti-virus scanners. It runs as a scheduled task under the Windows Task Scheduler triggered daily at a specified time. This is the uninstaller utility registered in the Windows Control Panel for the program Search Provided by Yahoo. While running, it connects to the Internet address server-52-84-174-217.gru50.r.cloudfront.net on port 80 using the HTTP protocol.
MD5:
5ae1a7bb414590fd3b7198d42967ea1d

SHA-1:
4b43da3c25317586f3a5c0ddb50ed0378733833e

SHA-256:
c823c0a2ace6c293ca0f77c0e790ff5a989ce793eb6971ba53fc13ff2ed67fe2

Scanner detections:
9 / 68

Status:
Malware

Analysis date:
12/27/2024 3:21:29 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Symmi.70357
-9

Arcabit
Trojan.Symmi.D112D5
1.0.0.795

Bitdefender
Gen:Variant.Symmi.70357
1.0.20.215

Emsisoft Anti-Malware
Gen:Variant.Symmi.70357
8.17.02.12.03

F-Secure
Gen:Variant.Symmi.70357
11.2017-12-02_1

G Data
Gen:Variant.Symmi.70357
17.2.25

MicroWorld eScan
Gen:Variant.Symmi.70357
18.0.0.129

Qihoo 360 Security
HEUR/QVM05.1.0000.Malware.Gen
1.0.0.1120

Rising Antivirus
Malware.Heuristic!ET#98% (rdm+)
23.00.65.17210

File size:
681 KB (697,344 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\arquivos comuns\updatetask\sync.exe

File PE Metadata
Compilation timestamp:
1/2/2016 2:04:15 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

Entry address:
0x8F7DC

Entry point:
55, 8B, EC, 83, C4, F0, B8, B0, EA, 48, 00, E8, 50, 7B, F7, FF, A1, DC, 1C, 49, 00, 8B, 00, E8, BC, 29, FD, FF, 8B, 0D, 24, 1B, 49, 00, A1, DC, 1C, 49, 00, 8B, 00, 8B, 15, 74, 3F, 46, 00, E8, BC, 29, FD, FF, A1, DC, 1C, 49, 00, 8B, 00, E8, 00, 2B, FD, FF, E8, 83, 52, F7, FF, 8D, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
570 KB (583,680 bytes)

2 Program Uninstaller
Program name:
Search Provided by Yahoo

Uninstall string:
"C:\users\{user}\appdata\local\{ddbdebe1-f915-8759-948d-a2b1b0e55e29}\uninstall.exe" \uninstall \s \noun \delselfdir

Program name:
Palikan

Uninstall string:
"C:\users\{user}\appdata\local\{b7a881f4-9300-ed4c-fe98-c8a4daf0343c}\uninstall.exe" \uninstall \s \noun


Scheduled Task
Task name:
{56E83F21-8E97-4EBC-BDA0-381EFA115E92}

Trigger:
Daily (Runs daily at 13:35)


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

TCP (HTTP):
Connects to server-52-84-174-217.gru50.r.cloudfront.net  (52.84.174.217:80)

TCP (HTTP):
Connects to s3-1-w.amazonaws.com  (52.216.1.112:80)

TCP (HTTP SSL):
Connects to geoip-zlb.vips.scl3.mozilla.com  (63.245.215.82:443)

TCP (HTTP):
Connects to ec2-23-23-110-40.compute-1.amazonaws.com  (23.23.110.40:80)

TCP (HTTP):
Connects to ec2-23-21-246-202.compute-1.amazonaws.com  (23.21.246.202:80)

TCP (HTTP):
Connects to ec2-107-20-201-65.compute-1.amazonaws.com  (107.20.201.65:80)

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