e1559e56dd28f6dd29eae755fd8d845691637c9b6bcf506ce3f3d2b1df56c503

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
28/03/2024, 22:23

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General

Target

2024-03-28_0e5f2c5437422343c675dcb4247050e2_cryptolocker.exe
Size

54KB
MD5

0e5f2c5437422343c675dcb4247050e2
SHA1

f1b74fa909487edc3fd1a49b3abef44066583e42
SHA256

e1559e56dd28f6dd29eae755fd8d845691637c9b6bcf506ce3f3d2b1df56c503
SHA512

c8499f18de21ccfce830fb1f50e81fe78e0dfb25156027c56e175cf1a633e7f91db24bf606340857548f7a03d7ea9d928263be9bf16b70e2ea8b9b87eef872eb
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojakl8eN:V6a+pOtEvwDpj0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012320-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012320-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2560	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2388	2024-03-28_0e5f2c5437422343c675dcb4247050e2_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 2388 wrote to memory of 2560	2388	2024-03-28_0e5f2c5437422343c675dcb4247050e2_cryptolocker.exe	28
PID 2388 wrote to memory of 2560	2388	2024-03-28_0e5f2c5437422343c675dcb4247050e2_cryptolocker.exe	28
PID 2388 wrote to memory of 2560	2388	2024-03-28_0e5f2c5437422343c675dcb4247050e2_cryptolocker.exe	28
PID 2388 wrote to memory of 2560	2388	2024-03-28_0e5f2c5437422343c675dcb4247050e2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_0e5f2c5437422343c675dcb4247050e2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_0e5f2c5437422343c675dcb4247050e2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2560

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
54KB

MD5
19232fa8eb6f690a4a0dc888507c3ac7

SHA1
d96f9ff19911d88e1ae8ec98f0f920734b45956b

SHA256
3ca0b86e8127a2b30daf9542dfa41cabc412d9ce0af6a75706686416d5489375

SHA512
087ad9f16de61414c56ad8e8ec200660444d78fb0134c58b7275f99ae88a799ca6aec7f4eef6503b842903d9a60e98cb06e568cad802fbda169e4c0c700e306f

Download Submit
memory/2388-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2388-1-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2388-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2560-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2560-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download