c423f0b5ce7c5df8e15b79186c453c750f4b1b7c30f3a5465503017e548ff77b

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 17:32

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General

Target

2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe
Size

42KB
MD5

88b87431c9d98e8aa0310a715d6461ae
SHA1

c1998a9eb678f593441d5acfd13267cc97d11158
SHA256

c423f0b5ce7c5df8e15b79186c453c750f4b1b7c30f3a5465503017e548ff77b
SHA512

712afabca80022e9baf9c3532e34b92eea968f8a596e226f3250181274a4943c26e0af382fee1d742767b111b65b4c74375cadc8a6e9ac76ff25e6c86e9722e5
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFp13/7p:bxNrC7kYo1Fxf3s05rwxbF73l

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
behavioral1/files/0x0008000000012255-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

Processes:

pissa.exe

pid	Process
2272	pissa.exe

Loads dropped DLL 1 IoCs

Processes:

2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe

pid	Process
2420	2024-01-25_88b87431c9d98e8aa0310a715d6461ae_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

Processes:

2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe

description	pid	Process	procid_target
PID 2420 wrote to memory of 2272	2420	2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe	28
PID 2420 wrote to memory of 2272	2420	2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe	28
PID 2420 wrote to memory of 2272	2420	2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe	28
PID 2420 wrote to memory of 2272	2420	2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2272

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
42KB

MD5
702c3e3c1da853f531a2fd10b15f84be

SHA1
171ee46e44406e277e701fa11444bbd47d5c2f71

SHA256
fb9f104b1ca170b64bdc3924028eb612ad60a9140fc9893fe444538c888fa3f1

SHA512
218df9b2aab134d6052969ef9af7e412beff18bca4a08c4a745d1e8b49ac33ac598b1380742ad163a9c39e59ea0cc64eb9371f40b6bcb3f7c1bf89b535262f5e

Download Submit
memory/2272-22-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2272-15-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2420-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2420-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2420-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download