f25f12098ab431c5191bf168daa27265710f8cbcdd807c6f95fed4dd622dbb6a

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 12:45

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General

Target

2024-02-13_5b04b3c707c96fd645e2eb294ed88cd1_cryptolocker.exe
Size

94KB
MD5

5b04b3c707c96fd645e2eb294ed88cd1
SHA1

4515c6b9c98999aecba122377b0c151a8a38a025
SHA256

f25f12098ab431c5191bf168daa27265710f8cbcdd807c6f95fed4dd622dbb6a
SHA512

9d889d1d51ff9d43e0c119eb371630b68410ee41c6c7ae8d9d06792a2115bf582ec0e36f380074e7c2f20cd80e6c56cb02f78ec0376eef5f4ec9aaaef3d36bff
SSDEEP

1536:Z6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNC4w2w:Z6a+pOtEvwDpjtzk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000120e1-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000120e1-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2912	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2140	2024-02-13_5b04b3c707c96fd645e2eb294ed88cd1_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 2140 wrote to memory of 2912	2140	2024-02-13_5b04b3c707c96fd645e2eb294ed88cd1_cryptolocker.exe	22
PID 2140 wrote to memory of 2912	2140	2024-02-13_5b04b3c707c96fd645e2eb294ed88cd1_cryptolocker.exe	22
PID 2140 wrote to memory of 2912	2140	2024-02-13_5b04b3c707c96fd645e2eb294ed88cd1_cryptolocker.exe	22
PID 2140 wrote to memory of 2912	2140	2024-02-13_5b04b3c707c96fd645e2eb294ed88cd1_cryptolocker.exe	22

C:\Users\Admin\AppData\Local\Temp\2024-02-13_5b04b3c707c96fd645e2eb294ed88cd1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_5b04b3c707c96fd645e2eb294ed88cd1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2912

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
94KB

MD5
40476bb384f413cc470d2bfea8ab4cc6

SHA1
f1adfaa9fd6898332a14aec674a1f76400b5b10d

SHA256
df1ef3789d2c945f19b4de605085df4bcbbdcf5c96bb861bfcb04ffa833c3657

SHA512
04e2fc24da7883a9ae51cadbd88036c6ff459b5c602992e8be32c81a3aa31e847d5fd86747a5053c9725b5987f9b9010d563031e295cd44db2edbcfecd414ff7

Download Submit
memory/2140-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2140-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2140-7-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2912-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2912-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download