744895b873348b2be89d735d2927af4fc5c5ac4b986b9235cd3cba39df3707a7

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
14/06/2024, 14:40

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General

Target

2024-06-14_7d7a9f888ec92d05724082265a8cfc17_cryptolocker.exe
Size

43KB
MD5

7d7a9f888ec92d05724082265a8cfc17
SHA1

3fe25373c8d01bad4e22e528fc76a8d27dbf41f9
SHA256

744895b873348b2be89d735d2927af4fc5c5ac4b986b9235cd3cba39df3707a7
SHA512

3dfcfc41e45d7382c20c3921403a073dc4f77e2e266ed3f57d101ac94930b9d149e824033456e25a7f9ab0b5b96a4c04b9416984c96b873d723e8aaf2b68aa7a
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkL7vF1TD:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2976-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1920-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001227b-14.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2976-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1920-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001227b-14.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1920	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2976	2024-06-14_7d7a9f888ec92d05724082265a8cfc17_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 2976 wrote to memory of 1920	2976	2024-06-14_7d7a9f888ec92d05724082265a8cfc17_cryptolocker.exe	28
PID 2976 wrote to memory of 1920	2976	2024-06-14_7d7a9f888ec92d05724082265a8cfc17_cryptolocker.exe	28
PID 2976 wrote to memory of 1920	2976	2024-06-14_7d7a9f888ec92d05724082265a8cfc17_cryptolocker.exe	28
PID 2976 wrote to memory of 1920	2976	2024-06-14_7d7a9f888ec92d05724082265a8cfc17_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-14_7d7a9f888ec92d05724082265a8cfc17_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_7d7a9f888ec92d05724082265a8cfc17_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1920

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
43KB

MD5
51ba391b3156749a7431e9cf12c563ec

SHA1
8a99bfd0513924d1cc64abe6f8b2d64fbb54e451

SHA256
512fe2197ffbf70d2903962bd77e9e7f8a7c3017fd7c3e223f97a4b5f8fcb9ee

SHA512
ac0129ea3300ea86e82891d169c421811147ee15bcb92630663d958cb822bcc416e62f630b8ad5d27ecc61a6436c0aad99963d54bad46170330aaa21dc9c89da

Download Submit
memory/1920-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1920-17-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1920-24-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2976-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2976-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2976-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2976-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download