61ccaf53716210e2007090141bb825b2cb6182ab267f39fe9e3d83add87948ec

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
14/03/2024, 20:28

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General

Target

2024-03-14_4e9bd0ca5b489049464e63567014f038_cryptolocker.exe
Size

82KB
MD5

4e9bd0ca5b489049464e63567014f038
SHA1

af8763b0f7cf6d4ffdf9cec9e16cba5a731cdc87
SHA256

61ccaf53716210e2007090141bb825b2cb6182ab267f39fe9e3d83add87948ec
SHA512

c66b7d12c41821481038792248a73dd150ae3d6080507a0dd20dafce5b9c1e27f494731e41f2483dbb20af26f8243614b5451fb9429051786c7098e79a55daa1
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHuu:vCjsIOtEvwDpj5H9YvQd2b

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-14_4e9bd0ca5b489049464e63567014f038_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4780	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 3600 wrote to memory of 4780	3600	2024-03-14_4e9bd0ca5b489049464e63567014f038_cryptolocker.exe	89
PID 3600 wrote to memory of 4780	3600	2024-03-14_4e9bd0ca5b489049464e63567014f038_cryptolocker.exe	89
PID 3600 wrote to memory of 4780	3600	2024-03-14_4e9bd0ca5b489049464e63567014f038_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-14_4e9bd0ca5b489049464e63567014f038_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_4e9bd0ca5b489049464e63567014f038_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3600
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4780

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
82KB

MD5
5c5a1876ad54505649cd1f45833ea2b0

SHA1
a45de929e751b5ec038592e417db79bad600bbba

SHA256
38ca1c985fdc4c266e92a9267d7ace50ca09a88afe7131d689d7ed89d4d40f31

SHA512
1000d681183ce411c4787e8048a95529368ada9614fde5447ebc98586f5438cce227d488849e9836cd08410165984e58ac8822b38df72df00eaf5f8f2a13f10a

Download Submit
memory/3600-0-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/3600-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/3600-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4780-17-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download