0877e8c79c69c39666f0e84756cbd28b09a3bd4ddf1a8cc00f75fa172e043c28

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-02-2024 05:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-28_c6d2ca559f181adb325d633041659913_cryptolocker.exe
Size

61KB
MD5

c6d2ca559f181adb325d633041659913
SHA1

bb8c5c3aa897c1c2c0437993dfd6bf3446dc1d2e
SHA256

0877e8c79c69c39666f0e84756cbd28b09a3bd4ddf1a8cc00f75fa172e043c28
SHA512

a88ef0bf3fe6ab56f9bf895e67b0a9ee985c38300c8819ccc0f652e6bb1d104a9efc32090afda1feb329ab40d1b4b934537b916f68bc14e6340710c27275ab67
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xfy:X6a+SOtEvwDpjBrOA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2840	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2228	2024-02-28_c6d2ca559f181adb325d633041659913_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 2228 wrote to memory of 2840	2228	2024-02-28_c6d2ca559f181adb325d633041659913_cryptolocker.exe	28
PID 2228 wrote to memory of 2840	2228	2024-02-28_c6d2ca559f181adb325d633041659913_cryptolocker.exe	28
PID 2228 wrote to memory of 2840	2228	2024-02-28_c6d2ca559f181adb325d633041659913_cryptolocker.exe	28
PID 2228 wrote to memory of 2840	2228	2024-02-28_c6d2ca559f181adb325d633041659913_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_c6d2ca559f181adb325d633041659913_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_c6d2ca559f181adb325d633041659913_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2840

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
61KB

MD5
ea898fd11174d3d31a368bc97e7b5192

SHA1
3dc6cab5c857b1cc360c52b2dc98ef50f47383d4

SHA256
9b12a01ef46e27e1234f5eec6deb003fef2788df324c9cd56d4b0582f11b8265

SHA512
a1594a798e749178ae2128c06219c58b7069aa3d4500a29d5a8d868a3032f9b0e0aa5514e43c3a2f94baec25d9127149dba6e3f912929e6f7d24fc98cbc1bd96

Download Submit
memory/2228-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2228-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2228-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2840-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2840-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download