c622ca8e86787d97fc88ecc85ffadd4352ecbaf7f4d5c065926f8142d4f24dc2

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2024, 22:39

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General

Target

2024-03-25_76e77989f90f82dd9345f5ba036ed20d_cryptolocker.exe
Size

40KB
MD5

76e77989f90f82dd9345f5ba036ed20d
SHA1

a9f7d679ad579280266764d1c864e9c0faecf754
SHA256

c622ca8e86787d97fc88ecc85ffadd4352ecbaf7f4d5c065926f8142d4f24dc2
SHA512

50243a3a0652f46e4ac8bbafb17fafdf4d933f4b3192f73c94fa0efd581407a47c5aea711261b184574f0df3925853d12ffe8ad7a934d646b7afc6909df8ed7e
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66x:vj+jsMQMOtEvwDpj5HW5S

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023202-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023202-12.dat	CryptoLocker_set1

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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-25_76e77989f90f82dd9345f5ba036ed20d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3312	misid.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 3012 wrote to memory of 3312	3012	2024-03-25_76e77989f90f82dd9345f5ba036ed20d_cryptolocker.exe	89
PID 3012 wrote to memory of 3312	3012	2024-03-25_76e77989f90f82dd9345f5ba036ed20d_cryptolocker.exe	89
PID 3012 wrote to memory of 3312	3012	2024-03-25_76e77989f90f82dd9345f5ba036ed20d_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-25_76e77989f90f82dd9345f5ba036ed20d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_76e77989f90f82dd9345f5ba036ed20d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3312

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\misid.exe

Filesize
41KB

MD5
5ce575acbd45044e3da0bc829fbd6de7

SHA1
c41bf2ddd7438437454b9a19aa78daefd2f4668d

SHA256
c586c156f635e2218d66056baf8533d6d6df50144307b6a218f5c01490361f84

SHA512
78bf61c907d32582c004354f7c0cd8e143083910784a6b4dc43f434104edbc01f199c4d7be5f998c98c159e942c94c53f36cad2471da427e6755e96265b643af

Download Submit
memory/3012-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3012-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3012-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/3312-17-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/3312-23-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download