49811ad79072b3eac3868326988681ca5466e399f586420fd0476387491f195b

Analysis

max time kernel
120s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 09:52

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General

Target

2024-02-01_2f4b8863ac399a73b97ad02be9e306e8_cryptolocker.exe
Size

39KB
MD5

2f4b8863ac399a73b97ad02be9e306e8
SHA1

1d5590550e81c8aab33089448431f58b437a69f0
SHA256

49811ad79072b3eac3868326988681ca5466e399f586420fd0476387491f195b
SHA512

40d730652604e2fa1fcf3035dce65280d3c4611dafd499c6eaf89879d214a42dd2df770f8dea0f711bfcfb054a299fcae8699c1d0a50b6e89d5d90ae17d7b6e3
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQL3bTlm:ZzFbxmLPWQMOtEvwDpjLeU3A

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f9-13.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-01_2f4b8863ac399a73b97ad02be9e306e8_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4044	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 1468 wrote to memory of 4044	1468	2024-02-01_2f4b8863ac399a73b97ad02be9e306e8_cryptolocker.exe	87
PID 1468 wrote to memory of 4044	1468	2024-02-01_2f4b8863ac399a73b97ad02be9e306e8_cryptolocker.exe	87
PID 1468 wrote to memory of 4044	1468	2024-02-01_2f4b8863ac399a73b97ad02be9e306e8_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-01_2f4b8863ac399a73b97ad02be9e306e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_2f4b8863ac399a73b97ad02be9e306e8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1468
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4044

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

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Downloads

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

Filesize
39KB

MD5
00df83a56791051ad2b41b94df47abe2

SHA1
233a257a399bcab9bc3046ee9b4495cf46d12e17

SHA256
936925876ccc3c8cd6f3bcb42fe94c7b4e418ed29be39b363381bac66bbd91a4

SHA512
2ad132935f3658549a88bd9e9fd0a3dcb4cff7616a8e603488a9fa6f977536973c7ea4b7a8d41d847ff114241eccb596c2d96773fc0b4d292059a5c723a6ed3f

Download Submit
memory/1468-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1468-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1468-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1468-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/1468-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4044-17-0x0000000000460000-0x00000000004A0000-memory.dmp

Filesize
256KB

Download
memory/4044-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4044-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download