662cf8c49aa2fd227277adedbfea0f591ff900db56e0b795df26f558ba7addbc

Analysis

max time kernel
147s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 21:36

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General

Target

1d35861997a3235f261147d37338ba2b.exe
Size

140KB
MD5

1d35861997a3235f261147d37338ba2b
SHA1

e8b6d076379728e150eefd139a225ddc9c0fb911
SHA256

662cf8c49aa2fd227277adedbfea0f591ff900db56e0b795df26f558ba7addbc
SHA512

1815bafe3efd567f974d14dca7531bac427fdad27eb5777e4459004407d0203eeb5a2964925de80107f046ecddc8610f2442a0e767f1388a6fc50ab98d5bea16
SSDEEP

3072:woEVNPcRu+nGp4gqMgl+Q4z53xOUxjSnF+zq4Oy13YuROUL3i3:woE70RHnGp4JMgl+QmBRxjjq013VRZLc

Score

7^/10

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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	1d35861997a3235f261147d37338ba2b.exe

Executes dropped EXE 1 IoCs

pid	Process
1940	1.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\1.exe	1d35861997a3235f261147d37338ba2b.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
4640	1940	WerFault.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1788	1d35861997a3235f261147d37338ba2b.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 1940	1788	1d35861997a3235f261147d37338ba2b.exe	24
PID 1788 wrote to memory of 1940	1788	1d35861997a3235f261147d37338ba2b.exe	24
PID 1788 wrote to memory of 1940	1788	1d35861997a3235f261147d37338ba2b.exe	24

C:\Users\Admin\AppData\Local\Temp\1d35861997a3235f261147d37338ba2b.exe
"C:\Users\Admin\AppData\Local\Temp\1d35861997a3235f261147d37338ba2b.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Windows\1.exe
  "C:\Windows\1.exe"
  2⤵
  - Executes dropped EXE
  PID:1940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1940 -ip 1940
1⤵
PID:1060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 224
1⤵
- Program crash
PID:4640

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/1788-0-0x0000000000400000-0x0000000000424200-memory.dmp

Filesize
144KB

Download
memory/1940-9-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1940-10-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download