8ee946baef22571ec1bc3511f3a790e40a713f5baa5c367bd9fee0a8e8e6fa75

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07/05/2024, 11:18

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General

Target

2024-05-07_a2bcebfe88c773a9df60ba5fc65ad8ce_cryptolocker.exe
Size

66KB
MD5

a2bcebfe88c773a9df60ba5fc65ad8ce
SHA1

f6c1fbfbd1a6c210b694371c86bea5351bb3301d
SHA256

8ee946baef22571ec1bc3511f3a790e40a713f5baa5c367bd9fee0a8e8e6fa75
SHA512

adac62b9ae4fcb67ab00a1c5abe2df86f3258b54193bcd6e6f36d16eee1df05ee4654d2a8b77fcafd3401cc9a4966770e914d8e795bd58581a4287e9276b666e
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGyQ:TCjsIOtEvwDpj5HE/OUHnSMYb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2340-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c0000000146fc-11.dat	CryptoLocker_rule2
behavioral1/memory/2520-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2340-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2520-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2340-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c0000000146fc-11.dat	CryptoLocker_set1
behavioral1/memory/2520-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2340-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2520-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2520	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2340	2024-05-07_a2bcebfe88c773a9df60ba5fc65ad8ce_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 2340 wrote to memory of 2520	2340	2024-05-07_a2bcebfe88c773a9df60ba5fc65ad8ce_cryptolocker.exe	28
PID 2340 wrote to memory of 2520	2340	2024-05-07_a2bcebfe88c773a9df60ba5fc65ad8ce_cryptolocker.exe	28
PID 2340 wrote to memory of 2520	2340	2024-05-07_a2bcebfe88c773a9df60ba5fc65ad8ce_cryptolocker.exe	28
PID 2340 wrote to memory of 2520	2340	2024-05-07_a2bcebfe88c773a9df60ba5fc65ad8ce_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-07_a2bcebfe88c773a9df60ba5fc65ad8ce_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-07_a2bcebfe88c773a9df60ba5fc65ad8ce_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2520

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\misid.exe

Filesize
66KB

MD5
3d9a0b1830a3c0b68b30df6cc9454086

SHA1
4869b53bc87d214435db9b1a1283df76340db4a8

SHA256
4d962614d27d943284749fad0549f8b79b7f568b024c818a1b5fd90e58dcb2aa

SHA512
3931eb99882d80032818a1ff25980dd77f95496e56d2db706632f06a2435a36dedff5dbf3929a3522077bf46153a97e77a46ec1939fdb1317ac27ae6b41673cb

Download Submit
memory/2340-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2340-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2340-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2340-2-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2340-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2520-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2520-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2520-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download