6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21

Analysis

max time kernel
144s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 01:24

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General

Target

6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe
Size

134KB
MD5

01049e52577b707361c81a3465300b50
SHA1

a90e31406437ff17fa9fa973518bc31a1016c154
SHA256

6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21
SHA512

e5f85a56352bb769ff86ab01e59b3aaae3e6502a2c9b0c26a3cf1a3d880d597eea05c2a9d78cb680782bd2da5a5826e70b28bd40a9ea558d0b38b96dd184be52
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SO0:YfU/WF6QMauSuiWNi9eNOl0007NZIO0

Score

7^/10

persistence 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

Processes:

6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe

Executes dropped EXE 1 IoCs

Processes:

wuauclt.exe

pid process

1236 wuauclt.exe

pid	process
1236	wuauclt.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/3560-0-0x0000000000E80000-0x0000000000EA8000-memory.dmp	upx
C:\ProgramData\Update\wuauclt.exe	upx
behavioral2/memory/1236-4-0x00000000000F0000-0x0000000000118000-memory.dmp	upx
behavioral2/memory/3560-6-0x0000000000E80000-0x0000000000EA8000-memory.dmp	upx
behavioral2/memory/1236-7-0x00000000000F0000-0x0000000000118000-memory.dmp	upx
behavioral2/memory/3560-8-0x0000000000E80000-0x0000000000EA8000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe

description	pid	process	target process
PID 3560 wrote to memory of 1236	3560	6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe	wuauclt.exe
PID 3560 wrote to memory of 1236	3560	6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe	wuauclt.exe
PID 3560 wrote to memory of 1236	3560	6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe	wuauclt.exe
PID 3560 wrote to memory of 4236	3560	6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe	cmd.exe
PID 3560 wrote to memory of 4236	3560	6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe	cmd.exe
PID 3560 wrote to memory of 4236	3560	6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe
"C:\Users\Admin\AppData\Local\Temp\6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3560

C:\ProgramData\Update\wuauclt.exe
"C:\ProgramData\Update\wuauclt.exe" /run
2⤵
- Executes dropped EXE
PID:1236

C:\windows\SysWOW64\cmd.exe
"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\6c9bd914e5070d3f708af031c0964d9c0a21c21b7885462ae9ad60e9d6996f21.exe" >> NUL
2⤵
PID:4236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

C:\ProgramData\Update\wuauclt.exe

Filesize
134KB

MD5
03a7d538f027206124f359f4199a4e5d

SHA1
deef2c769cde67cf64ae500222b089ede53c4329

SHA256
c17e3e9264fbc9a1560a0d990dc1693fb416b64129710d683fb3427705ca89f3

SHA512
9a8325a97146716213f3b208689ca933bfa86b12de4f9f2d83ab76e219927df48049b335fed870c949a7dfd4b14b1938d1bed68dfe18a303b214450b8c694f98

Download Submit
memory/1236-4-0x00000000000F0000-0x0000000000118000-memory.dmp

Filesize
160KB

Download
memory/1236-7-0x00000000000F0000-0x0000000000118000-memory.dmp

Filesize
160KB

Download
memory/3560-0-0x0000000000E80000-0x0000000000EA8000-memory.dmp

Filesize
160KB

Download
memory/3560-6-0x0000000000E80000-0x0000000000EA8000-memory.dmp

Filesize
160KB

Download
memory/3560-8-0x0000000000E80000-0x0000000000EA8000-memory.dmp

Filesize
160KB

Download