6b8f6c82bee78d34ad09811984c74d5fe82b4c8bf854f5d0a796e9d44efb86bb

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14-03-2024 11:42

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General

Target

c8881bba97172d64a981a2b0836f9a69.exe
Size

29KB
MD5

c8881bba97172d64a981a2b0836f9a69
SHA1

f38439db49558732ff7227ae7e4f66de94c88eec
SHA256

6b8f6c82bee78d34ad09811984c74d5fe82b4c8bf854f5d0a796e9d44efb86bb
SHA512

3b06a590658d859521c5205fba51e8ba1e0b08ae641b30d761e54ae71f67fdc561eb9daf4c8d0e10e111557e9967562558834ca0216fb59e266ab5e5e99f1ca3
SSDEEP

768:Il0K9XWkID5El01LM2m7kojZ2NnoanFG45nXcrgGWbz6aDcz:w0SGl9USAQWZ+F3lgz

Score

7^/10

upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	c8881bba97172d64a981a2b0836f9a69.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3196-0-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3196-1-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/4712-2-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/4712-5-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\c0jdI075.exe	c8881bba97172d64a981a2b0836f9a69.exe
File opened for modification	C:\Windows\SysWOW64\c0jdI075.exe	c8881bba97172d64a981a2b0836f9a69.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3180	4712	WerFault.exe	95

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 4712	3196	c8881bba97172d64a981a2b0836f9a69.exe	95
PID 3196 wrote to memory of 4712	3196	c8881bba97172d64a981a2b0836f9a69.exe	95
PID 3196 wrote to memory of 4712	3196	c8881bba97172d64a981a2b0836f9a69.exe	95

C:\Users\Admin\AppData\Local\Temp\c8881bba97172d64a981a2b0836f9a69.exe
"C:\Users\Admin\AppData\Local\Temp\c8881bba97172d64a981a2b0836f9a69.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Users\Admin\AppData\Local\Temp\c8881bba97172d64a981a2b0836f9a69.exe
  "C:\Users\Admin\AppData\Local\Temp\c8881bba97172d64a981a2b0836f9a69.exe" y
  2⤵
  - Drops file in System32 directory
  PID:4712
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4712 -s 416
    3⤵
    - Program crash
    PID:3180

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4712 -ip 4712
1⤵
PID:1684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3196-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3196-1-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4712-2-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4712-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download