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jambenupdate.exe

Shulan Hou

The application jambenupdate.exe by Shulan Hou has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a scheduled task under the Windows Task Scheduler named JambenUpdateTaskMachineCore triggered by a time event. While running, it connects to the Internet address ocsp.comodoca.com on port 80 using the HTTP protocol.
Publisher:
Shulan Hou  (signed and verified)

MD5:
8179586b578a09f82326f1e877fdbf36

SHA-1:
c4f0827fdc1b56ff313074f24eff3346a91dc5c9

SHA-256:
1671e5c26723a27b9cabe76e5869599bfb93fabcd0fb9814743db9b438a109d6

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
12/24/2024 4:34:28 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.ELEX (M)
16.8.25.10

File size:
634.4 KB (649,600 bytes)

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\Program Files\jamben\update\jambenupdate.exe

Digital Signature
Signed by:
Shulan Hou

Authority:
thawte, Inc.

Valid from:
8/25/2016 5:00:00 AM

Valid to:
6/14/2017 4:59:59 AM

Subject:
CN=Shulan Hou, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
21E3000980B30029C251639A0B0AF0FD

File PE Metadata
Compilation timestamp:
8/25/2016 10:18:09 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
12288:lYfza7fq0fD1cmKtBRII1gSf7EzqDwOqbUX69:ywnvw1gGXDbqbSY

Entry address:
0x4FB36

Entry point:
E8, C1, 05, 00, 00, E9, 80, FE, FF, FF, FF, 25, E0, 83, 47, 00, 8B, 4D, F4, 64, 89, 0D, 00, 00, 00, 00, 59, 5F, 5F, 5E, 5B, 8B, E5, 5D, 51, F2, C3, 50, 64, FF, 35, 00, 00, 00, 00, 8D, 44, 24, 0C, 2B, 64, 24, 0C, 53, 56, 57, 89, 28, 8B, E8, A1, 70, 70, 49, 00, 33, C5, 50, FF, 75, FC, C7, 45, FC, FF, FF, FF, FF, 8D, 45, F4, 64, A3, 00, 00, 00, 00, F2, C3, 50, 64, FF, 35, 00, 00, 00, 00, 8D, 44, 24, 0C, 2B, 64, 24, 0C, 53, 56, 57, 89, 28, 8B, E8, A1, 70, 70, 49, 00, 33, C5, 50, 89, 65, F0, FF, 75, FC, C7, 45...
 
[+]

Entropy:
6.5162

Code size:
472.5 KB (483,840 bytes)

Scheduled Task
Task name:
JambenUpdateTaskMachineCore

Trigger:
Time


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

TCP (HTTP):
Connects to ocsp.comodoca.com  (178.255.83.1:80)

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