8f2ff27b165f9182b5b2572d801616e9d061237dd63e27371d0a1a97e2b628d1

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14/03/2024, 15:57

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General

Target

2024-03-14_f9823f3ece484a572a6e9994720d8a78_cryptolocker.exe
Size

91KB
MD5

f9823f3ece484a572a6e9994720d8a78
SHA1

ebe1d834db7ceb4efbbab1498b7c5ea2478ccbdf
SHA256

8f2ff27b165f9182b5b2572d801616e9d061237dd63e27371d0a1a97e2b628d1
SHA512

085d66cbe4646a9e5dc9ad28ac211ece6f7ab8678c15eb450dbb3e03565ce1a877203a67e250824e53ef79ad820ada30624afbbc22001074fb72fc08c474b23a
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgp:V6a+pOtEvwDpjtzl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001222d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001222d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3012	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2484	2024-03-14_f9823f3ece484a572a6e9994720d8a78_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 2484 wrote to memory of 3012	2484	2024-03-14_f9823f3ece484a572a6e9994720d8a78_cryptolocker.exe	28
PID 2484 wrote to memory of 3012	2484	2024-03-14_f9823f3ece484a572a6e9994720d8a78_cryptolocker.exe	28
PID 2484 wrote to memory of 3012	2484	2024-03-14_f9823f3ece484a572a6e9994720d8a78_cryptolocker.exe	28
PID 2484 wrote to memory of 3012	2484	2024-03-14_f9823f3ece484a572a6e9994720d8a78_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-14_f9823f3ece484a572a6e9994720d8a78_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_f9823f3ece484a572a6e9994720d8a78_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

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
91KB

MD5
098a667d66312eef4bae9cffadbba1ae

SHA1
9d72c81f46d2c1a1481f81ce79360a8959202786

SHA256
6ee90cfac2e71ded41815a767c3c021f0fba5a2d95e616492692da1e67582807

SHA512
b7654b90dc992cb2701cb7b82cfd6aff4424870a066be2272a3efd9c8011fb1bf685255beafbc9411611895ecef91a704be7b417a0d4e285768dc8eb289e624d

Download Submit
memory/2484-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2484-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2484-2-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3012-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3012-16-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download