94a0dfe0d6b1aa0e8e39a9f9c6c2bda8c0e6f07921bac3884dd96674fe6b30de

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 19:50

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General

Target

2024-02-12_270ef5c34f9b2e90963840e14b146735_cryptolocker.exe
Size

58KB
MD5

270ef5c34f9b2e90963840e14b146735
SHA1

1f88951eb6e1387dce6561eecd278b217db8ca18
SHA256

94a0dfe0d6b1aa0e8e39a9f9c6c2bda8c0e6f07921bac3884dd96674fe6b30de
SHA512

702b66216b6784e158b09e110ccee37ad5c7462be9ab6fd461bb0c9ff3d9cc4453aad121fd725ff6dceb36349ecd4e872faa84ec9a8fe17ca0f151a6b7872106
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPt547/qm3u:V6QFElP6n+gMQMOtEvwDpjyaLccVCbDe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014abe-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014abe-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2172	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1684	2024-02-12_270ef5c34f9b2e90963840e14b146735_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 2172	1684	2024-02-12_270ef5c34f9b2e90963840e14b146735_cryptolocker.exe	28
PID 1684 wrote to memory of 2172	1684	2024-02-12_270ef5c34f9b2e90963840e14b146735_cryptolocker.exe	28
PID 1684 wrote to memory of 2172	1684	2024-02-12_270ef5c34f9b2e90963840e14b146735_cryptolocker.exe	28
PID 1684 wrote to memory of 2172	1684	2024-02-12_270ef5c34f9b2e90963840e14b146735_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_270ef5c34f9b2e90963840e14b146735_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_270ef5c34f9b2e90963840e14b146735_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
58KB

MD5
e716b118aa85989a0d25cc36374877d7

SHA1
59b7e85865470717b961ca68f2411e6b171c0d24

SHA256
6191ca97f6ec79987137f5a41f9dcc7d078a4dc18ce6994e2cb89a30e1cbe873

SHA512
ae46d4bd88f21e9afbf00e76d5620dd0c04a3ee3424f65fd4804ce752c7cf4b11226b6c077cc5ec5c803cf7eb1ffcfd94e49020c37e5569f246e51dd1b4bf409

Download Submit
memory/1684-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1684-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1684-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2172-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2172-16-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download