1e2d6892d1a78e4209806ea86eb87407502771738c5a4dc2cd92c78787b20899

Analysis

max time kernel
137s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:14

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General

Target

2024-10-31_f20f620193883b20172916a0d3c33932_cryptolocker.exe
Size

40KB
MD5

f20f620193883b20172916a0d3c33932
SHA1

99a365f47c611c06f01901e762fe2f5b8e0ea176
SHA256

1e2d6892d1a78e4209806ea86eb87407502771738c5a4dc2cd92c78787b20899
SHA512

7ad7fc15f01d0967decbab30fb6b355e705d8611d6d39faa6fca8e2b23dcc75fd7d7b919475770fc1d1996427e7d2651e8fa54772ef260bdbd4e642858a5a1fc
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0WZyx:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xf

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2024-10-31_f20f620193883b20172916a0d3c33932_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
348	hurok.exe

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	2024-10-31_f20f620193883b20172916a0d3c33932_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4872 wrote to memory of 348	4872	2024-10-31_f20f620193883b20172916a0d3c33932_cryptolocker.exe	84
PID 4872 wrote to memory of 348	4872	2024-10-31_f20f620193883b20172916a0d3c33932_cryptolocker.exe	84
PID 4872 wrote to memory of 348	4872	2024-10-31_f20f620193883b20172916a0d3c33932_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-31_f20f620193883b20172916a0d3c33932_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-31_f20f620193883b20172916a0d3c33932_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4872
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:348

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

Replay Monitor

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Downloads

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

Filesize
40KB

MD5
7c98be8261de72d03bc1975b9644e991

SHA1
147abfe614b3bfff7212fd52fae2c46848cb0ce3

SHA256
df49647357cbc6312da410f113b031ed6d2e0bdbd22cbc7a094173dfbac2bd7f

SHA512
f1a626bb6e1c22de663a2150c40e800309afc496276b9474a38eb23f66c94816e9abdf9d01943f31ac6983acb2c993047dbaff38ee608904641ef84a6b29fdf0

Download Submit
memory/348-19-0x0000000002130000-0x0000000002136000-memory.dmp

Filesize
24KB

Download
memory/4872-0-0x00000000022F0000-0x00000000022F6000-memory.dmp

Filesize
24KB

Download
memory/4872-1-0x00000000022F0000-0x00000000022F6000-memory.dmp

Filesize
24KB

Download
memory/4872-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download