f9fdc4e6b86ed352fd10489d14be547a4a494ded6e6b804ecb843e324d249af0

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/10/2024, 01:23

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General

Target

2024-10-10_6e19141883898552aaf43a795ea682ed_cryptolocker.exe
Size

37KB
MD5

6e19141883898552aaf43a795ea682ed
SHA1

b7e51c7d57c5fed54630762472a0ef7b192e67b3
SHA256

f9fdc4e6b86ed352fd10489d14be547a4a494ded6e6b804ecb843e324d249af0
SHA512

72e25f560c949b4ca618be24a2f01e17bc70d35016f22c4eee133bd0841936ddee5d6a204dbd6a435844f02db1d8003adb6d71671954c5ecfe8cff385f6d114a
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT66r:qDdFJy3QMOtEvwDpjjWMl7T66r

Score

7^/10

discovery 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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-10-10_6e19141883898552aaf43a795ea682ed_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3152	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4056-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x0008000000023ca7-13.dat	upx
behavioral2/memory/4056-19-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/3152-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-10_6e19141883898552aaf43a795ea682ed_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 3152	4056	2024-10-10_6e19141883898552aaf43a795ea682ed_cryptolocker.exe	85
PID 4056 wrote to memory of 3152	4056	2024-10-10_6e19141883898552aaf43a795ea682ed_cryptolocker.exe	85
PID 4056 wrote to memory of 3152	4056	2024-10-10_6e19141883898552aaf43a795ea682ed_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-10_6e19141883898552aaf43a795ea682ed_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_6e19141883898552aaf43a795ea682ed_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4056
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3152

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
37KB

MD5
a14932318f95227de03405ada52b99ed

SHA1
5bde5ecdcc3389f9f69cd069d29ed11d90f500aa

SHA256
1f950e26c53010e8b8a62489053d763b1028274e990bf455f0f8f0a991d9ef14

SHA512
bdefe4549413cb1519eb9474db231017fbe847b65d26e09a2047c556ad79e18780a3c0e0cb7d674283dd50352c3ba305dd220084aff7bb71ea107f5c78d41d43

Download Submit
memory/3152-26-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/3152-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4056-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4056-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4056-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4056-4-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/4056-19-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download