Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
13/05/2024, 21:08
General
- Target 4b50b12d7cb61382a712ffcfcc3692758e66d18b80ad0d6c05317ca63d4d25a4.exe
- Size 63KB
- Sample240513-zyvcssec98
- SHA256 4b50b12d7cb61382a712ffcfcc3692758e66d18b80ad0d6c05317ca63d4d25a4
Score
10/10
Malware Config
Extracted
Credentials
-
Protocol
ftp
-
Host
ftp.tripod.com
-
Port
21
-
Username
onthelinux
-
Password
741852abc
Signatures
- UPX dump on OEP (original entry point) 7 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 7 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 2 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\4b50b12d7cb61382a712ffcfcc3692758e66d18b80ad0d6c05317ca63d4d25a4.exe"C:\Users\Admin\AppData\Local\Temp\4b50b12d7cb61382a712ffcfcc3692758e66d18b80ad0d6c05317ca63d4d25a4.exe"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\fb4e8a9e\jusched.exe"C:\Program Files (x86)\fb4e8a9e\jusched.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
fb4e8a9e
jusched.exe
memory/1952-0-0x0000000000400000-0x0000000000452000-memory.dmp
memory/1952-16-0x0000000000400000-0x0000000000452000-memory.dmp
memory/4948-13-0x0000000000400000-0x0000000000452000-memory.dmp
memory/4948-17-0x0000000000400000-0x0000000000452000-memory.dmp
memory/4948-23-0x0000000000400000-0x0000000000452000-memory.dmp
memory/4948-24-0x0000000000400000-0x0000000000452000-memory.dmp