5a74089467600c4660f559cfc9669dae9880f1642c736de356c124733f1d4b84

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08-06-2024 08:39

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General

Target

2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe
Size

97KB
MD5

eae1f8cc0d279f3aa10fcbdf86e7d181
SHA1

f8fe47dcdfb0ee9e80dc0ec26702c1dea40ef723
SHA256

5a74089467600c4660f559cfc9669dae9880f1642c736de356c124733f1d4b84
SHA512

b8c8903a9cad5a092eb42ce010df46460baa83efaf7fc8bf80a799cd17f4ef1fb9940fa8e8af04f9fbda791e952c234e01affe878cbce1fe048d41d3ad352f93
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpE1:V6a+pOtEvwDpjtzd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014aec-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014aec-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
960	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_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 1720 wrote to memory of 960	1720	2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe	28
PID 1720 wrote to memory of 960	1720	2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe	28
PID 1720 wrote to memory of 960	1720	2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe	28
PID 1720 wrote to memory of 960	1720	2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_eae1f8cc0d279f3aa10fcbdf86e7d181_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:960

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
97KB

MD5
8567a57cc5216b328e364144fd547204

SHA1
1a9de64e1c60999cc23dc269688e525e906e6bd6

SHA256
9cdd34ed7d8797bebab763515e6e66bbaf3d836f4973f439f8d1c3e825e690a6

SHA512
055de97f08e72adcd9ebc4ae51a55209fa9ef8a626d79175fb19aa2a5aded9d9d94581bf028d8f5f86e3c5850d35af30900f148fb83934676fcd86559923c8a1

Download Submit
memory/960-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/960-22-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/1720-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1720-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download