b56f0bde0009cec10ef756a7312bb19e67310e014fe9197174bc37e5101800fe

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
11/03/2024, 01:08

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General

Target

2024-03-11_30c30ac62a29514d2806c1fcbc4909df_cryptolocker.exe
Size

94KB
MD5

30c30ac62a29514d2806c1fcbc4909df
SHA1

656c652b9821836041a8104edffb0c69061fffe4
SHA256

b56f0bde0009cec10ef756a7312bb19e67310e014fe9197174bc37e5101800fe
SHA512

c46123f06624c9cc8f0e4b92e5356d83ff00218bb6ba534bda631c37c4a5ffaec9f030d295a8d8f76aee2a57e53b8f183b5f91a34ff85741520ffb2cc271e590
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpB:V6a+pOtEvwDpjtzW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000122a8-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000122a8-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1712	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2264	2024-03-11_30c30ac62a29514d2806c1fcbc4909df_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 2264 wrote to memory of 1712	2264	2024-03-11_30c30ac62a29514d2806c1fcbc4909df_cryptolocker.exe	28
PID 2264 wrote to memory of 1712	2264	2024-03-11_30c30ac62a29514d2806c1fcbc4909df_cryptolocker.exe	28
PID 2264 wrote to memory of 1712	2264	2024-03-11_30c30ac62a29514d2806c1fcbc4909df_cryptolocker.exe	28
PID 2264 wrote to memory of 1712	2264	2024-03-11_30c30ac62a29514d2806c1fcbc4909df_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-11_30c30ac62a29514d2806c1fcbc4909df_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_30c30ac62a29514d2806c1fcbc4909df_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1712

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
95KB

MD5
44a2b8038b17617e6b73695526ad223f

SHA1
fd4742da0b22a8e8c3acf0aecc7617f0f2242151

SHA256
66bbee1c1b82588897b6fb292da50c609cc26ffccca71fed0a312958cd14dc52

SHA512
a6dc82748a20538910a9a968315039436d42573b3f13dc8eed4bbc7509ecb5ffd19d3ddf33ffded29447f9a4c9d8eeba567c244ca9c8134f1997f3ee837ceea9

Download Submit
memory/1712-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1712-18-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2264-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2264-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2264-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download