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

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

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\pissa.exe	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

pid	process
2272	pissa.exe

pid	process
2420	2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe

description	pid	process	target process
PID 2420 wrote to memory of 2272	2420	2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe	pissa.exe
PID 2420 wrote to memory of 2272	2420	2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe	pissa.exe
PID 2420 wrote to memory of 2272	2420	2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe	pissa.exe
PID 2420 wrote to memory of 2272	2420	2024-01-25_88b87431c9d98e8aa0310a715d6461ae_cryptolocker.exe	pissa.exe

C:\Users\Admin\AppData\Local\Temp\pissa.exe
"C:\Users\Admin\AppData\Local\Temp\pissa.exe"
2⤵
- Executes dropped EXE
PID:2272

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

\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