fbbee6d4a07ab6c42d1ae865593ae7c5ef7dadda634371d5e05277c48a9ddd36

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
12/07/2024, 04:57

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General

Target

343c4ee767bd93c60cbe2bcb809c8590N.exe
Size

134KB
MD5

343c4ee767bd93c60cbe2bcb809c8590
SHA1

0587ad811293396d48981b52f2a70e9c5b933ab1
SHA256

fbbee6d4a07ab6c42d1ae865593ae7c5ef7dadda634371d5e05277c48a9ddd36
SHA512

328f11183f2cebd2c0ebbb8ef18c03f7c883ae6c78659d2a442ab9e2ae6223de464f87eafa195749638fe83ed699fe1caf055a16f996036a09b7d6fe1590d48f
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOx:YfU/WF6QMauSuiWNi9eNOl0007NZIOx

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-701583114-2636601053-947405450-1000\Control Panel\International\Geo\Nation	343c4ee767bd93c60cbe2bcb809c8590N.exe

Executes dropped EXE 1 IoCs

pid	Process
2380	wuauclt.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4640-0-0x00000000003E0000-0x0000000000408000-memory.dmp	upx
behavioral2/files/0x000a000000023442-3.dat	upx
behavioral2/memory/2380-5-0x0000000000230000-0x0000000000258000-memory.dmp	upx
behavioral2/memory/4640-6-0x00000000003E0000-0x0000000000408000-memory.dmp	upx
behavioral2/memory/4640-7-0x00000000003E0000-0x0000000000408000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	343c4ee767bd93c60cbe2bcb809c8590N.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

description	pid	Process	procid_target
PID 4640 wrote to memory of 2380	4640	343c4ee767bd93c60cbe2bcb809c8590N.exe	84
PID 4640 wrote to memory of 2380	4640	343c4ee767bd93c60cbe2bcb809c8590N.exe	84
PID 4640 wrote to memory of 2380	4640	343c4ee767bd93c60cbe2bcb809c8590N.exe	84
PID 4640 wrote to memory of 4020	4640	343c4ee767bd93c60cbe2bcb809c8590N.exe	89
PID 4640 wrote to memory of 4020	4640	343c4ee767bd93c60cbe2bcb809c8590N.exe	89
PID 4640 wrote to memory of 4020	4640	343c4ee767bd93c60cbe2bcb809c8590N.exe	89

C:\Users\Admin\AppData\Local\Temp\343c4ee767bd93c60cbe2bcb809c8590N.exe
"C:\Users\Admin\AppData\Local\Temp\343c4ee767bd93c60cbe2bcb809c8590N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4640
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  PID:2380
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\343c4ee767bd93c60cbe2bcb809c8590N.exe" >> NUL
  2⤵
  PID:4020

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
fc897f68d7411df256b2d0214cbe6c8c

SHA1
3927473a986881b07f712313f1b5fb25954cedaf

SHA256
c662516bac1658676e7398ccca294d60d03e2201c0668516a883f2f133099b04

SHA512
a90c142d3b291e6ed0e8de9d975a2533102f5a8d1f4dd4cdc740d669f2271e2fc8365d43620af8bfd07b6b32987cc86ddd5d678c93415f6733afe767e8ec29b7

Download Submit
memory/2380-5-0x0000000000230000-0x0000000000258000-memory.dmp

Filesize
160KB

Download
memory/4640-0-0x00000000003E0000-0x0000000000408000-memory.dmp

Filesize
160KB

Download
memory/4640-6-0x00000000003E0000-0x0000000000408000-memory.dmp

Filesize
160KB

Download
memory/4640-7-0x00000000003E0000-0x0000000000408000-memory.dmp

Filesize
160KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads