49197444de3ed640a0479561628227e2eb2ab603f13a4f285b1286a09c30e1ec

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
05/03/2024, 17:37

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General

Target

2024-03-05_7f794dcf897e02153a58c8eec2468361_cryptolocker.exe
Size

70KB
MD5

7f794dcf897e02153a58c8eec2468361
SHA1

e22292d52332ed91055b864e2ac7f469dc881253
SHA256

49197444de3ed640a0479561628227e2eb2ab603f13a4f285b1286a09c30e1ec
SHA512

2fd7227ef4cdf9b73b8e017934b9bd54513710cb61e9092dd23bd5dd78b9a2e3d9085a6106f7369e02dcee54e5a7dfd7c3a981c33fcdacbe26d7daef1a0c0177
SSDEEP

768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeMLam5ax+II:u6QFElP6n+gWMOtEvwDpjjaYaY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2524	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2856	2024-03-05_7f794dcf897e02153a58c8eec2468361_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 2856 wrote to memory of 2524	2856	2024-03-05_7f794dcf897e02153a58c8eec2468361_cryptolocker.exe	28
PID 2856 wrote to memory of 2524	2856	2024-03-05_7f794dcf897e02153a58c8eec2468361_cryptolocker.exe	28
PID 2856 wrote to memory of 2524	2856	2024-03-05_7f794dcf897e02153a58c8eec2468361_cryptolocker.exe	28
PID 2856 wrote to memory of 2524	2856	2024-03-05_7f794dcf897e02153a58c8eec2468361_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-05_7f794dcf897e02153a58c8eec2468361_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_7f794dcf897e02153a58c8eec2468361_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2524

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
70KB

MD5
0109cee453fe4791880fd988a6016d07

SHA1
269d044228c19dfb2ac14535a54d073fac606772

SHA256
27ccf78df7a51939e08e771b99a047433d22af5ac2326072d680c668c69ee0d0

SHA512
4bd97acb34ca0cc31749cfc7aba1d3b3b5a4a6370dd2f6102727140d74c55d4d73ec1bd8383dba921804481bbabb4e81759f311540eca5f4a96d13b7ea599d3b

Download Submit
memory/2524-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2856-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2856-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2856-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download