af9c5e95c0df1a4f5aa7ea378946cbd69f92fb34631b8a05eb2415e5743e34c0

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
29-01-2024 10:31

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General

Target

2024-01-29_973751d2e171e7bc6e7c08641e1b9548_cryptolocker.exe
Size

41KB
MD5

973751d2e171e7bc6e7c08641e1b9548
SHA1

a1bb3fffd8fe1778b7ccd83441b7892e481d8d25
SHA256

af9c5e95c0df1a4f5aa7ea378946cbd69f92fb34631b8a05eb2415e5743e34c0
SHA512

fc35929b6d434ef36151548758e61c9e95f8aa69104fa3d20f65034953054fba60015506dc3dcc2cfbb504d5488da9a438d8f4d50fc13e2e42f5ad0d21c667a9
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFp1j:bxNrC7kYo1Fxf3s05rwxbF7j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c33-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3060	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2348	2024-01-29_973751d2e171e7bc6e7c08641e1b9548_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 2348 wrote to memory of 3060	2348	2024-01-29_973751d2e171e7bc6e7c08641e1b9548_cryptolocker.exe	28
PID 2348 wrote to memory of 3060	2348	2024-01-29_973751d2e171e7bc6e7c08641e1b9548_cryptolocker.exe	28
PID 2348 wrote to memory of 3060	2348	2024-01-29_973751d2e171e7bc6e7c08641e1b9548_cryptolocker.exe	28
PID 2348 wrote to memory of 3060	2348	2024-01-29_973751d2e171e7bc6e7c08641e1b9548_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-29_973751d2e171e7bc6e7c08641e1b9548_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_973751d2e171e7bc6e7c08641e1b9548_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:3060

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\pissa.exe

Filesize
41KB

MD5
e9db320f4771b8213bcdf065a67e79cd

SHA1
7ea44ee0441f4b7212831094db854470bd3612a6

SHA256
d4b96dd86eb46cae719961f860f4ec5b701642e77b803432f452c80c3582f86c

SHA512
cd4ba1704614efcd8142918b1cca0aa3712758f8ffb0f01772d09e887b10d722e34febbcb4d8928eaa14710dc44ae2f75cf69cbc6eaf8e462016eaebb24093f0

Download Submit
memory/2348-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2348-1-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2348-8-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/3060-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/3060-22-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download