e9596c86d92ff3697db47a8352309aeeeb46585d3f47c93fe3331c2a1403cd47

Analysis

max time kernel
150s
max time network
149s
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, 23:21

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General

Target

2024-02-01_197ad3d6d27225fb11e685b5ae0c1206_cryptolocker.exe
Size

41KB
MD5

197ad3d6d27225fb11e685b5ae0c1206
SHA1

db4cb438fc964b2f906d5bb894bdfe04382f6b21
SHA256

e9596c86d92ff3697db47a8352309aeeeb46585d3f47c93fe3331c2a1403cd47
SHA512

29c901854f5c4408cc271516ee3f225053bd8eec2147831e7d196d2f2e667de1c4cf61363c8cba2d9a7d70d5758f3b173a48315291830b94ebbf070b77f4a287
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5co9+slHia:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+sF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231f7-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-01_197ad3d6d27225fb11e685b5ae0c1206_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2696	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 4552 wrote to memory of 2696	4552	2024-02-01_197ad3d6d27225fb11e685b5ae0c1206_cryptolocker.exe	47
PID 4552 wrote to memory of 2696	4552	2024-02-01_197ad3d6d27225fb11e685b5ae0c1206_cryptolocker.exe	47
PID 4552 wrote to memory of 2696	4552	2024-02-01_197ad3d6d27225fb11e685b5ae0c1206_cryptolocker.exe	47

C:\Users\Admin\AppData\Local\Temp\2024-02-01_197ad3d6d27225fb11e685b5ae0c1206_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_197ad3d6d27225fb11e685b5ae0c1206_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4552
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2696

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
42KB

MD5
7bc8e311ab6efa812123181f918ac6a4

SHA1
8e0b25187440989102ff8e1e04115da4a3bc60f3

SHA256
04bc614d780a2112954f8a862b9c5a263178ac238a5c67f6ee1bf9c8df3bf7ff

SHA512
607e304ea834f7799677872952e88a78e211496307e238c646ad9c961cb07147e85a9efcb82084d53b76254af9a1cadb94fa394aca2595c185752130f225f477

Download Submit
memory/2696-17-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/2696-23-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/4552-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/4552-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4552-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download