1ee03f3bf08829ca359e1226d128a3a4e13afad68a5c8b8061810efa516764dd

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
21/02/2024, 14:54

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General

Target

2024-02-21_c661f7de2d12b02573695e7eb1968c30_cryptolocker.exe
Size

73KB
MD5

c661f7de2d12b02573695e7eb1968c30
SHA1

6cb0c1bfb1eb6596a55effe0b0f79f4b375927cb
SHA256

1ee03f3bf08829ca359e1226d128a3a4e13afad68a5c8b8061810efa516764dd
SHA512

249b920d82a83cd82e14d379ecf65314808112c6295488a5eb8cc9221cc6b6e01e6fcb50fa4406e71a91170c8a5ccca80beb2499630c4f2c62564fd58669432d
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1J4S:X6a+SOtEvwDpjBZYvQd29

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023144-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023144-12.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-1-5-21-1392040655-2056082574-619088944-1000\Control Panel\International\Geo\Nation	2024-02-21_c661f7de2d12b02573695e7eb1968c30_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2420	asih.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 4524 wrote to memory of 2420	4524	2024-02-21_c661f7de2d12b02573695e7eb1968c30_cryptolocker.exe	85
PID 4524 wrote to memory of 2420	4524	2024-02-21_c661f7de2d12b02573695e7eb1968c30_cryptolocker.exe	85
PID 4524 wrote to memory of 2420	4524	2024-02-21_c661f7de2d12b02573695e7eb1968c30_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-21_c661f7de2d12b02573695e7eb1968c30_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_c661f7de2d12b02573695e7eb1968c30_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4524
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2420

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\asih.exe

Filesize
73KB

MD5
b016930ceefa19c496b2f984f3da8098

SHA1
cd64e7d1bc4236ba36b557587efa4d2f2ea743d4

SHA256
9658c9d39bdf4af7eceff9766f99cb503583b767ce8a72082b8d4d988ade5087

SHA512
30ab08b31ee99d35bbdaa447ece55fa64aa2c071f0562b7c9cd639b9580f34edf82c30b781ed2c9ea3205d8d38078620df1caead4aeaf0d79d9375603876799f

Download Submit
memory/2420-17-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/2420-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4524-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4524-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/4524-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download