381d5c46aea88758f1e3cd37dcf58c47aefd1bf7019ff62593119bb0472abee4

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
08/05/2024, 04:51

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General

Target

2024-05-08_e30654da9fdc4cf7478690ba251b4b5f_cryptolocker.exe
Size

41KB
MD5

e30654da9fdc4cf7478690ba251b4b5f
SHA1

6dd6c9e2e676324ec6ca5c5c9fa1ceb266345044
SHA256

381d5c46aea88758f1e3cd37dcf58c47aefd1bf7019ff62593119bb0472abee4
SHA512

f56de31d68e10a5bde921f58e5fd4a82ffceffdf8440d9bfce1df20dc751294950b69d687d421db52c373b55c6429ebc6dc322ce6740658f9b8286b0f6b82bf7
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuDb7xi:ZzFbxmLPWQMOtEvwDpjLeJAsKcb7A

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000149f5-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2184	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
756	2024-05-08_e30654da9fdc4cf7478690ba251b4b5f_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 756 wrote to memory of 2184	756	2024-05-08_e30654da9fdc4cf7478690ba251b4b5f_cryptolocker.exe	28
PID 756 wrote to memory of 2184	756	2024-05-08_e30654da9fdc4cf7478690ba251b4b5f_cryptolocker.exe	28
PID 756 wrote to memory of 2184	756	2024-05-08_e30654da9fdc4cf7478690ba251b4b5f_cryptolocker.exe	28
PID 756 wrote to memory of 2184	756	2024-05-08_e30654da9fdc4cf7478690ba251b4b5f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-08_e30654da9fdc4cf7478690ba251b4b5f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-08_e30654da9fdc4cf7478690ba251b4b5f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:756
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2184

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\misid.exe

Filesize
41KB

MD5
cc1b821cdc70180ca4af843a47385cbc

SHA1
3fb1368350d1c77db9d6265a5fd5558c1a8b0d4d

SHA256
a7fe019a054fbafe03b59fa0b1625c76ae13cd74712f93a18af1aa5f1860d317

SHA512
a2194ff1a80136db3456a8e189ce6e44f894c278eb416e51f6ce161bd5c0de021c7648a3589155c830c9636cf95d928806c5f834ac19f83a582fae3d11d09371

Download Submit
memory/756-1-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download
memory/756-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/756-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/756-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2184-16-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2184-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2184-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2184-25-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download