4b70e7841bcb1e06172dc70b8b574ff04091247e09a1f04f87290457cd904630

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/03/2024, 00:45

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General

Target

2024-03-09_d01fc270532f43cfd97bae7c230558df_cryptolocker.exe
Size

45KB
MD5

d01fc270532f43cfd97bae7c230558df
SHA1

5f6a35b476585c0f73a9826bacec86473c711005
SHA256

4b70e7841bcb1e06172dc70b8b574ff04091247e09a1f04f87290457cd904630
SHA512

169ace5fdb92204a83fc119dff3f4f65adb1eddbcf87c3d7255c0d01a2f8384a076d4553ad8826e04fe72e1a650739cac27f5bb1f9a54cf634ab172a2a37e94b
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUuuf:vj+jsMQMOtEvwDpj5Hczer5ixuf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e5eb-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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-09_d01fc270532f43cfd97bae7c230558df_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4748	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 4592 wrote to memory of 4748	4592	2024-03-09_d01fc270532f43cfd97bae7c230558df_cryptolocker.exe	88
PID 4592 wrote to memory of 4748	4592	2024-03-09_d01fc270532f43cfd97bae7c230558df_cryptolocker.exe	88
PID 4592 wrote to memory of 4748	4592	2024-03-09_d01fc270532f43cfd97bae7c230558df_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-09_d01fc270532f43cfd97bae7c230558df_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_d01fc270532f43cfd97bae7c230558df_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4748

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
45KB

MD5
2b55c2d25e319725eba6fc47befac209

SHA1
3374d0040382166915f5b263644b24cf6c84d159

SHA256
54369cbb8859de4b64f4cbf4d322808984388079e3c1d640e0664b1b24eca7f4

SHA512
f3ae119a8bb241758cc5d0e8cdd377df17fa1b3a6b5ff926645414fdb56a9d03a445bb0ffa692bb877830d2263241afd095e2b8d74bf6f73b1a58e340aa79ad6

Download Submit
memory/4592-0-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/4592-1-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/4592-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/4748-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4748-18-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download