5bb130711feea903d970a3cf967ea4a2a0b764f3c7df853efaf3bfc8e10bcfe2

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-05-2024 12:02

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General

Target

2024-05-09_9a8ef85b59cefafb4ef7ffb66190ba48_cryptolocker.exe
Size

96KB
MD5

9a8ef85b59cefafb4ef7ffb66190ba48
SHA1

b5194390c70ded99351fa98953dd6f2b295d58ca
SHA256

5bb130711feea903d970a3cf967ea4a2a0b764f3c7df853efaf3bfc8e10bcfe2
SHA512

9d905af80557fbcc77c638ad8b4e25a97642d55b6d53e7c21f42dd582d60ff79ee2795682333435884c4d60f0bd1bb7aff1740ff5c833d1488915fd5aec027bc
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp0e:V6a+pOtEvwDpjtzm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015cb6-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015cb6-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2120	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2968	2024-05-09_9a8ef85b59cefafb4ef7ffb66190ba48_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 2968 wrote to memory of 2120	2968	2024-05-09_9a8ef85b59cefafb4ef7ffb66190ba48_cryptolocker.exe	28
PID 2968 wrote to memory of 2120	2968	2024-05-09_9a8ef85b59cefafb4ef7ffb66190ba48_cryptolocker.exe	28
PID 2968 wrote to memory of 2120	2968	2024-05-09_9a8ef85b59cefafb4ef7ffb66190ba48_cryptolocker.exe	28
PID 2968 wrote to memory of 2120	2968	2024-05-09_9a8ef85b59cefafb4ef7ffb66190ba48_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_9a8ef85b59cefafb4ef7ffb66190ba48_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_9a8ef85b59cefafb4ef7ffb66190ba48_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2120

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
96KB

MD5
5082a769addf8bde05c47c226d6f1d47

SHA1
24f7b5c22525f004dfa69da86a2612c40783d564

SHA256
68537a67c83cb779b77cacfd484e44ab6e32eed40c6a69f45f7c58b1461d1483

SHA512
c7e6778123905c8656c2255e1c6eabb4e719aac2873fc2522d4374a263c6fb3ece6517ffe60fcd8a4561d8e70d51383baeffa14b5f7535f628850a5c3a041e35

Download Submit
memory/2120-22-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2120-15-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2968-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2968-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2968-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download