cce185268edab0f69d0d752c097f21bfd1771afc8c991dfb75cf736ee0e819c2

Analysis

max time kernel
150s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2024, 11:29

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General

Target

2024-01-24_39da43f433c9e019535bdc9feae9aa8e_cryptolocker.exe
Size

49KB
MD5

39da43f433c9e019535bdc9feae9aa8e
SHA1

e634504d756e8e69ad955660b8f2cbd5c27fb4e3
SHA256

cce185268edab0f69d0d752c097f21bfd1771afc8c991dfb75cf736ee0e819c2
SHA512

69c0184442b39d29dd13853d9029b86cbd3b17e1dae9ea6f15712760d91aa9ab756a7bae1ba74dfe51970b014c088c72280b4448e10115be53fa61f2efe6a9cd
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakll:V6a+pOtEvwDpj+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023222-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023222-12.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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	2024-01-24_39da43f433c9e019535bdc9feae9aa8e_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1744	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 4068 wrote to memory of 1744	4068	2024-01-24_39da43f433c9e019535bdc9feae9aa8e_cryptolocker.exe	87
PID 4068 wrote to memory of 1744	4068	2024-01-24_39da43f433c9e019535bdc9feae9aa8e_cryptolocker.exe	87
PID 4068 wrote to memory of 1744	4068	2024-01-24_39da43f433c9e019535bdc9feae9aa8e_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-01-24_39da43f433c9e019535bdc9feae9aa8e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_39da43f433c9e019535bdc9feae9aa8e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4068
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1744

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
49KB

MD5
ff0e84860fc4c9003953b97f4105a0a8

SHA1
eff8de917b1cec18e2c2d7d70998a0958dc9d448

SHA256
44785d20e98c44f8b2d56dc89b22584a80449631f90620e48fa4112d386d029e

SHA512
6a01689838d98239c74d8d4186c016408da63d0802936be6c11847dd0b1d573edf4378d223e0c30215b37c6ea3dbea842b76bf3aa8f77bb2d066fadf50e2606b

Download Submit
memory/1744-18-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1744-17-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/4068-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4068-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4068-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download