8387c1f5c09a7ed5a49ee9207b7c796a569ac1b15505eb9d3e32ba96bd78301a

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 05:08

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General

Target

2024-02-18_ead140fead3a4cf90b3d7f1683c52185_cryptolocker.exe
Size

49KB
MD5

ead140fead3a4cf90b3d7f1683c52185
SHA1

d5b4301107a3371c32160e05f36d600d8d780310
SHA256

8387c1f5c09a7ed5a49ee9207b7c796a569ac1b15505eb9d3e32ba96bd78301a
SHA512

57dc15b4947180b0909a7c4fb40603dd1e237ab580330ce463fb51899b1ae3a8bfabaf5a5267b6113d2f633e999ded46a991580c392ede9e4903cb41e568b2bd
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKI94a:79mqyNhQMOtEvwDpjBxe8TpX9D

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2940-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a0000000126af-11.dat	CryptoLocker_rule2
behavioral1/memory/2940-12-0x0000000002BC0000-0x0000000002BCF000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2940-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2152-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2940-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a0000000126af-11.dat	CryptoLocker_set1
behavioral1/memory/2940-12-0x0000000002BC0000-0x0000000002BCF000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2940-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2152-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2152	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2940	2024-02-18_ead140fead3a4cf90b3d7f1683c52185_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 2940 wrote to memory of 2152	2940	2024-02-18_ead140fead3a4cf90b3d7f1683c52185_cryptolocker.exe	28
PID 2940 wrote to memory of 2152	2940	2024-02-18_ead140fead3a4cf90b3d7f1683c52185_cryptolocker.exe	28
PID 2940 wrote to memory of 2152	2940	2024-02-18_ead140fead3a4cf90b3d7f1683c52185_cryptolocker.exe	28
PID 2940 wrote to memory of 2152	2940	2024-02-18_ead140fead3a4cf90b3d7f1683c52185_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_ead140fead3a4cf90b3d7f1683c52185_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_ead140fead3a4cf90b3d7f1683c52185_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2152

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
49KB

MD5
23a3b38339c44ebb4fb1fa86c3672d25

SHA1
9dfe3fc160755c1152a2d61fa9a5a00baf0e9ecb

SHA256
d35debc4cfbd641b148038fb8b3908a98c11ea398688e9c4e782a6d7f0657dc7

SHA512
f09c6bf37a83a4eda3b5b2f1add66a8b5cc6cef46ef668e8b26cd44a955844f227a34ca336b76184eb679b9d6ca67f6ccc92bc605f1495f2e044d74d2a86c9de

Download Submit
memory/2152-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2152-19-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/2152-26-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2940-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2940-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2940-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2940-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2940-12-0x0000000002BC0000-0x0000000002BCF000-memory.dmp

Filesize
60KB

Download
memory/2940-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download