50ddca7195a551ba532e3467f7ac9bfa45d12cd017dd2018b9b237c76d91b5f5

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15-03-2024 15:51

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General

Target

2024-03-15_4c727c7fc4ff68d8bc1d85b051908c7b_cryptolocker.exe
Size

61KB
MD5

4c727c7fc4ff68d8bc1d85b051908c7b
SHA1

3c3ac7861456dcec1d7ec4c7b7aeb87dcc558f63
SHA256

50ddca7195a551ba532e3467f7ac9bfa45d12cd017dd2018b9b237c76d91b5f5
SHA512

c5c9c55ac3ff91d2a9ebb4ee74ce7d8ce1294337bf7a61954cf8f29d96f00ff68e70eb7ef5dafb15d75730f28b8b9c9c0bc3857d678a43999db34a4fdfead3ee
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xblzoj:X6a+SOtEvwDpjBrOm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012245-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012245-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2488	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1708	2024-03-15_4c727c7fc4ff68d8bc1d85b051908c7b_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 1708 wrote to memory of 2488	1708	2024-03-15_4c727c7fc4ff68d8bc1d85b051908c7b_cryptolocker.exe	28
PID 1708 wrote to memory of 2488	1708	2024-03-15_4c727c7fc4ff68d8bc1d85b051908c7b_cryptolocker.exe	28
PID 1708 wrote to memory of 2488	1708	2024-03-15_4c727c7fc4ff68d8bc1d85b051908c7b_cryptolocker.exe	28
PID 1708 wrote to memory of 2488	1708	2024-03-15_4c727c7fc4ff68d8bc1d85b051908c7b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-15_4c727c7fc4ff68d8bc1d85b051908c7b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_4c727c7fc4ff68d8bc1d85b051908c7b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2488

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
62KB

MD5
104f684ca9955e9a05521b3fbcb7d64a

SHA1
8528672c531d2b585c5d791d70087b8937cf88dc

SHA256
30e3039b7f205e64b1f2631ec7156f62739d07ced88589041d86399268f4262e

SHA512
75c6615d236877708cff8a882e1a8b2f98f1e2c204b24ab484b027733799203707c288ddd5a5de9d7ebbd11a0eac544ae6b7363bdc733e382cebbda001a2ce6a

Download Submit
memory/1708-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1708-2-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1708-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2488-15-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2488-16-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download