d19cdfe515dc6baad319a245e9c559254e37e387d4c596ed44963a324afabbf4

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22/02/2024, 05:29

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General

Target

2024-02-22_c91af47ec876293a917223c696c0c0a9_cryptolocker.exe
Size

38KB
MD5

c91af47ec876293a917223c696c0c0a9
SHA1

d84749d970ff4921e01610bf6e254154a7ddba1c
SHA256

d19cdfe515dc6baad319a245e9c559254e37e387d4c596ed44963a324afabbf4
SHA512

9b9551f0d84a6a9ad6dea7da29fcd869d8ad1b4dd515d2ea66533f045b6ffe2bc1c1ab2a47453a7344de2352ac92d354ae170cd69d34bddc2b1d97a926f6c979
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfXsT7:bgX4zYcgTEu6QOaryfjqDDw3sCu5mXq7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023249-12.dat	CryptoLocker_rule2

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-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation	2024-02-22_c91af47ec876293a917223c696c0c0a9_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2536	hasfj.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 2204 wrote to memory of 2536	2204	2024-02-22_c91af47ec876293a917223c696c0c0a9_cryptolocker.exe	85
PID 2204 wrote to memory of 2536	2204	2024-02-22_c91af47ec876293a917223c696c0c0a9_cryptolocker.exe	85
PID 2204 wrote to memory of 2536	2204	2024-02-22_c91af47ec876293a917223c696c0c0a9_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-22_c91af47ec876293a917223c696c0c0a9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_c91af47ec876293a917223c696c0c0a9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2536

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\hasfj.exe

Filesize
38KB

MD5
a1ed82e0add90ef1bf87d6c1c93e3bc3

SHA1
4b7d5c535299e4555a1c10684f760ee2b5e48424

SHA256
326bac7c2abf95594abc25166d95b818c755124802e8b0a3371da377520cefc7

SHA512
34a116e39229809a068de859c9f0459bb21554290cc93a87781ade4c1bff14cc060b8c28d70cb0f57a0f4b5d31b1beec17c342ba7e7c6ccdfbfc8f6e4fbfd295

Download Submit
memory/2204-0-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/2204-1-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/2204-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2536-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/2536-19-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download