8241f7e672672408357dae65f62604b589f9a06bb1282f06a3264b4bc11f1ce9

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
26/05/2024, 04:35

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General

Target

2024-05-26_efd1d7e1462e12c57a913f8d2130f4ef_cryptolocker.exe
Size

43KB
MD5

efd1d7e1462e12c57a913f8d2130f4ef
SHA1

a6f235bf608031b61a4f1c975448e5ba54acb455
SHA256

8241f7e672672408357dae65f62604b589f9a06bb1282f06a3264b4bc11f1ce9
SHA512

12f13f3bdc20410a427b1512b799b3dbccddbf156f4e01c97f5b017a8b4558f02faa03418fd67c0d6af15ea9a8ded4f6965a1f451115415449da1c2a92871da8
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66Tc/:vj+jsMQMOtEvwDpj5HW5sc/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013113-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000013113-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2560	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2548	2024-05-26_efd1d7e1462e12c57a913f8d2130f4ef_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 2548 wrote to memory of 2560	2548	2024-05-26_efd1d7e1462e12c57a913f8d2130f4ef_cryptolocker.exe	28
PID 2548 wrote to memory of 2560	2548	2024-05-26_efd1d7e1462e12c57a913f8d2130f4ef_cryptolocker.exe	28
PID 2548 wrote to memory of 2560	2548	2024-05-26_efd1d7e1462e12c57a913f8d2130f4ef_cryptolocker.exe	28
PID 2548 wrote to memory of 2560	2548	2024-05-26_efd1d7e1462e12c57a913f8d2130f4ef_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-26_efd1d7e1462e12c57a913f8d2130f4ef_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_efd1d7e1462e12c57a913f8d2130f4ef_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2560

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
44KB

MD5
afe282a4ce99af5132df7c9d8e473ed5

SHA1
086d620c64142f3c94ab768b4f9720dd8da7264a

SHA256
261451a474412a2917b254408c8aa43f972a6cb9f6b06e6dd86af0dfef4cf8f1

SHA512
5345394f35e66cbec48a16625f7b3719057b60cc12501ff61bfabe1172885c6e1cc6ebba33b7b32a20ee15cfc8a0aaaaa921197c4d7bec399c7d51ef4665a97e

Download Submit
memory/2548-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2548-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2548-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2560-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2560-22-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download