bfcc2e9acfb9f57c9d2300dd1f955058adc0e06025d26b1dca29eba44c5b3d6d

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-04-2024 07:36

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General

Target

2024-04-23_760d134915b997101b2df3cfaac21f53_cryptolocker.exe
Size

60KB
MD5

760d134915b997101b2df3cfaac21f53
SHA1

dc07e661275e1446e7312fb577c5104dcc027935
SHA256

bfcc2e9acfb9f57c9d2300dd1f955058adc0e06025d26b1dca29eba44c5b3d6d
SHA512

32fa56dccfe6c80bc6932cb8eddd93ce39559b6007cd0dab9fd1ca0fecf22715abde5b458fc4d2e8009783ca3404f0ffc8becbd98306b1ef722ba92e2b4b8810
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xXcA:X6a+SOtEvwDpjBrOf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2180	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2336	2024-04-23_760d134915b997101b2df3cfaac21f53_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 2336 wrote to memory of 2180	2336	2024-04-23_760d134915b997101b2df3cfaac21f53_cryptolocker.exe	28
PID 2336 wrote to memory of 2180	2336	2024-04-23_760d134915b997101b2df3cfaac21f53_cryptolocker.exe	28
PID 2336 wrote to memory of 2180	2336	2024-04-23_760d134915b997101b2df3cfaac21f53_cryptolocker.exe	28
PID 2336 wrote to memory of 2180	2336	2024-04-23_760d134915b997101b2df3cfaac21f53_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-23_760d134915b997101b2df3cfaac21f53_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-23_760d134915b997101b2df3cfaac21f53_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2180

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
61KB

MD5
bdfc0ae60b1e6262d6e36ddf2cebab25

SHA1
3a281406d6b7aa7dc39892e70df1be503a8cdf1e

SHA256
4e0c00e43ccb57cfd55f3e3db566c782483557a59e79fb8b2f166f6a2fe3be16

SHA512
7cad34b14f6cc586bc813babbbbac264844b6770620f8335c04d9876c19cb1d0b39de73b7008512b92b197dcaeec8cb41fc7597e486d895226be018fe988de14

Download Submit
memory/2180-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2180-18-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2336-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2336-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2336-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download