aebeaa405d41461d292e6e7169d9c915b19951c8837a3f545d0020df4a341bc7

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 08:02

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General

Target

2024-02-20_3dff8bd8179bc46757912abd0ac3c6ed_cryptolocker.exe
Size

94KB
MD5

3dff8bd8179bc46757912abd0ac3c6ed
SHA1

08fdb6137e51fe1c0e25480e700227129a0ae9cf
SHA256

aebeaa405d41461d292e6e7169d9c915b19951c8837a3f545d0020df4a341bc7
SHA512

7f4f319996332bb8a4b9ece4d3dff4af8c79c18c987734fce9561c2293b17a487d5c45dbcda84ebf09a63b4e3276cd9058c22e072af743681ac386fe9feca66f
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNuj28EtXJX:V6a+pOtEvwDpjtzz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2540	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3040	2024-02-20_3dff8bd8179bc46757912abd0ac3c6ed_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 3040 wrote to memory of 2540	3040	2024-02-20_3dff8bd8179bc46757912abd0ac3c6ed_cryptolocker.exe	28
PID 3040 wrote to memory of 2540	3040	2024-02-20_3dff8bd8179bc46757912abd0ac3c6ed_cryptolocker.exe	28
PID 3040 wrote to memory of 2540	3040	2024-02-20_3dff8bd8179bc46757912abd0ac3c6ed_cryptolocker.exe	28
PID 3040 wrote to memory of 2540	3040	2024-02-20_3dff8bd8179bc46757912abd0ac3c6ed_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_3dff8bd8179bc46757912abd0ac3c6ed_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_3dff8bd8179bc46757912abd0ac3c6ed_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2540

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
94KB

MD5
406b9b17a06b572e87648a7ee8da7e17

SHA1
269952cd57fb1374dcc0cf6cdc1354b9fb4f3f8e

SHA256
ece411c06d0edf4a3d47f91f16cd1fab06298f8dafaadf286d0d8abf14c3b004

SHA512
c405e635a4d66a03b6494b469338b9ef747aae5e5996c48d44992aef20aeaf0cdfb438dc1bcdf6cce27b428da3ba384edccda3d934b73317f6ced26fc0bdb0d1

Download Submit
memory/2540-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2540-22-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/3040-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3040-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3040-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download