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unpack.exe

The executable unpack.exe has been detected as malware by 4 anti-virus scanners. It is set to automatically execute when any user logs into Windows (through the local user run registry setting) with the name ‘MediaSaver’.
MD5:
a6963cf60c7a695393e96948578a7583

SHA-1:
f6c318b1113d9f6081fda8dd18d53e32bb138c24

SHA-256:
1fe6c0bfe643844bd8033ce09b0fe22dc4d2cdfc696b38620102bcc05b594216

Scanner detections:
4 / 68

Status:
Malware

Analysis date:
4/29/2024 12:53:13 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Oncer
160917-0

Clam AntiVirus
Win.Worm.Brontok-88
0.98/23207

F-Prot
W32/Thecid.B@mm
4.6.5.141

Kaspersky
Email-Worm.Win32.Runouce
15.0.2.529

File size:
1.1 MB (1,141,244 bytes)

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\ucbrowser\user data_i18n\doctor\1.0.2.14\unpack.exe

File PE Metadata
Compilation timestamp:
10/20/1995 10:26:21 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

Entry address:
0x116000

Entry point:
60, E8, E6, 19, 00, 00, 8B, 74, 24, 20, E8, 08, 00, 00, 00, 61, 68, 80, E9, 30, 00, C3, E9, 59, E8, 01, 16, 00, 00, 81, E6, 00, F0, FF, FF, 81, EE, 00, 10, 00, 00, 66, 81, 3E, 4D, 5A, 75, F3, 0F, B7, 7E, 3C, 03, FE, 8B, 6F, 78, 03, EE, 8B, 5D, 20, 03, DE, 33, C0, 8B, D6, 83, C3, 04, 40, 8B, 3B, 03, FA, E8, 0F, 00, 00, 00, 47, 65, 74, 50, 72, 6F, 63, 41, 64, 64, 72, 65, 73, 73, 00, 5E, 33, C9, B1, 0F, FC, F3, A6, 75, DA, 8B, F2, 8B, 5D, 24, 03, DE, 0F, B7, 0C, 43, 8B, 5D, 1C, 03, DE, 8B, 1C, 8B, 03, DE, 81...
 
[+]

Entropy:
7.9499

Packer / compiler:
ASPack v1.08.04

Code size:
96 KB (98,304 bytes)

Startup File (All Users Run)
Registry location:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Name:
MediaSaver

Command:
C:\users\{user}\appdata\local\ucbrowser\user data_i18n\doctor\1.0.2.14\unpack.exe


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