135589313ba7964f10ac50ca424682e433921fcae3b52e02542e4c74099b878f

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/03/2024, 22:47

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General

Target

2024-03-25_b363118276f551bbdaec772bf7726f14_cryptolocker.exe
Size

129KB
MD5

b363118276f551bbdaec772bf7726f14
SHA1

72172b05ff1ab3f5978f62886c517d16a4e3b2de
SHA256

135589313ba7964f10ac50ca424682e433921fcae3b52e02542e4c74099b878f
SHA512

4430c84385b1dc114922d6e1049826a734cbb76748e53b7bf49490b29375bc58d714448e6b11f148e1709763328cf94665ae7783a58752048c724c4884e17b99
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp699GNtL1en:V6a+pOtEvwDpjtzd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001313f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001313f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2828	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1964	2024-03-25_b363118276f551bbdaec772bf7726f14_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 1964 wrote to memory of 2828	1964	2024-03-25_b363118276f551bbdaec772bf7726f14_cryptolocker.exe	28
PID 1964 wrote to memory of 2828	1964	2024-03-25_b363118276f551bbdaec772bf7726f14_cryptolocker.exe	28
PID 1964 wrote to memory of 2828	1964	2024-03-25_b363118276f551bbdaec772bf7726f14_cryptolocker.exe	28
PID 1964 wrote to memory of 2828	1964	2024-03-25_b363118276f551bbdaec772bf7726f14_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-25_b363118276f551bbdaec772bf7726f14_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-25_b363118276f551bbdaec772bf7726f14_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2828

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
129KB

MD5
f94bbd4a85927816be8f6a108f12ce5e

SHA1
83dbe572b59bc9a494b36c173e458654168652ed

SHA256
26b44ee8a0465225c8391d1fb12b3440c40955b13fdb1ce246e490200d6c7c0c

SHA512
d2b15e6c0b6ba0c4087023ee212693eae0ad0a78c5d2abf783f9a0662d6b23822f6a8cda7502ed4d94295392de1b7c1ed93f47dc5832fec86c1e2ff57b1209ee

Download Submit
memory/1964-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1964-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1964-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2828-16-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2828-15-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download