53af059c59627e7be8f79b6ca33dfb04d40ba6ca57cb3012babd9a2c0523cef9

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
24/01/2024, 13:25

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General

Target

2024-01-24_4ac6324da084e61c16f3f97265ffd829_cryptolocker.exe
Size

37KB
MD5

4ac6324da084e61c16f3f97265ffd829
SHA1

93010d95f74fad35061208cd97b308fcf72d75ab
SHA256

53af059c59627e7be8f79b6ca33dfb04d40ba6ca57cb3012babd9a2c0523cef9
SHA512

8ee8ae514527bf5ba878fa3dfe920fde98b027d1bf3f16fa11ad6cbeefba8c61ad45ce96a806d74df437eba3129e52c03c1d3c98361d53011077dd73cfd98314
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCpUu:X6QFElP6n+gJQMOtEvwDpjBmzDUpJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001225f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001225f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1976	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2212	2024-01-24_4ac6324da084e61c16f3f97265ffd829_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 2212 wrote to memory of 1976	2212	2024-01-24_4ac6324da084e61c16f3f97265ffd829_cryptolocker.exe	28
PID 2212 wrote to memory of 1976	2212	2024-01-24_4ac6324da084e61c16f3f97265ffd829_cryptolocker.exe	28
PID 2212 wrote to memory of 1976	2212	2024-01-24_4ac6324da084e61c16f3f97265ffd829_cryptolocker.exe	28
PID 2212 wrote to memory of 1976	2212	2024-01-24_4ac6324da084e61c16f3f97265ffd829_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-24_4ac6324da084e61c16f3f97265ffd829_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-24_4ac6324da084e61c16f3f97265ffd829_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1976

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
37KB

MD5
4093af9f14f81bad824903e1246c292f

SHA1
21c3df03c70f740d015955405d614398cb20a766

SHA256
4372f4cd6abd4788c017d15b9583acabebd8346f4670295b0fb99c4e213855a4

SHA512
bfa0305f3850acc79b108f293b4edb377232da20d7ea19733d55cd6ae808507aeae73011f0aab3b2d8f88b095bb39e40886f5e949a192e78e84ee1ee8c833d2a

Download Submit
memory/1976-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2212-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2212-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2212-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download