9ce31132d21bd9166cb501b21223e8a7377599132a4a991a08adb2bff1d436e3

Analysis

max time kernel
152s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 19:54

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General

Target

2024-03-15_f772a9a525c672c259404f3a46af50ce_cryptolocker.exe
Size

33KB
MD5

f772a9a525c672c259404f3a46af50ce
SHA1

054d18394909fa66f95d6ab7857c4023ecd318a0
SHA256

9ce31132d21bd9166cb501b21223e8a7377599132a4a991a08adb2bff1d436e3
SHA512

7a8e43031ddf3c858d36f4341d9f8b92b035c226b80b3465de8cfc85c3850b3037fb0e6d30e9c3701df4c642e4a9d64a2f5dcc8876406955c5b15bb0f8323f2b
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2BoVS71V:btB9g/WItCSsAGjX7r3BoVS7P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023126-12.dat	CryptoLocker_rule2

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-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	2024-03-15_f772a9a525c672c259404f3a46af50ce_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2388	gewos.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2388	2292	2024-03-15_f772a9a525c672c259404f3a46af50ce_cryptolocker.exe	88
PID 2292 wrote to memory of 2388	2292	2024-03-15_f772a9a525c672c259404f3a46af50ce_cryptolocker.exe	88
PID 2292 wrote to memory of 2388	2292	2024-03-15_f772a9a525c672c259404f3a46af50ce_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-15_f772a9a525c672c259404f3a46af50ce_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_f772a9a525c672c259404f3a46af50ce_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:2388

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

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

Filesize
33KB

MD5
825754678d361381d38cdf66e8711b0b

SHA1
14a3630ce2657502934a032d9a56835fd6b2ddf2

SHA256
d7a863e98cd908063413261c273c414a0d9e4414d04230fa3ffccee7ba028109

SHA512
4073f38050b2c141e2305360b6f28012311dcf1463d62e10ee35e1db4ab723a5470034756d3bcc9ec5677778c9adb00d2a7883720ed913ed789ee5272aea54eb

Download Submit
memory/2292-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2292-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2292-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2388-20-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download