ea1bda93dffffb08941758356e072f14089c9ef85164f704cc40eb9e3e7014ea

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
08/04/2024, 23:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-08_289fe38fe5ed516c0857f7c70411b9d2_cryptolocker.exe
Size

32KB
MD5

289fe38fe5ed516c0857f7c70411b9d2
SHA1

f4d463989767f1468d127d3d80625d6c8940a6a6
SHA256

ea1bda93dffffb08941758356e072f14089c9ef85164f704cc40eb9e3e7014ea
SHA512

d37dd5205d757aa0e8db2d8066d8f7466bba03baacfaac3e057c65319e71335a1c5fd5f902fd31273961750ac5d5aa426e64f1b9b44a9f12a31c97e0d946c8bd
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/Bw:b7o/2n1TCraU6GD1a4Xt9q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2508	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1912	2024-04-08_289fe38fe5ed516c0857f7c70411b9d2_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1912	2024-04-08_289fe38fe5ed516c0857f7c70411b9d2_cryptolocker.exe
2508	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1912 wrote to memory of 2508	1912	2024-04-08_289fe38fe5ed516c0857f7c70411b9d2_cryptolocker.exe	28
PID 1912 wrote to memory of 2508	1912	2024-04-08_289fe38fe5ed516c0857f7c70411b9d2_cryptolocker.exe	28
PID 1912 wrote to memory of 2508	1912	2024-04-08_289fe38fe5ed516c0857f7c70411b9d2_cryptolocker.exe	28
PID 1912 wrote to memory of 2508	1912	2024-04-08_289fe38fe5ed516c0857f7c70411b9d2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-08_289fe38fe5ed516c0857f7c70411b9d2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-08_289fe38fe5ed516c0857f7c70411b9d2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2508

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\rewok.exe

Filesize
32KB

MD5
db5b03982e7c68335e59e563a964ce42

SHA1
90b7634a9783a2e25951771131a1eff813276caa

SHA256
e3574dd5532199fcd6b1252ba173021bb28a87e2d53bd9b15ab0c5d24503680a

SHA512
8cf6435303cf16ecba01dffec417b4f8940ad1d370a186507599c2cfcaf61de60ae8ac20edfc331cfe7c3559ce2a979fed9892bf052ea71a194ce3bde0676156

Download Submit
memory/1912-0-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1912-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1912-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2508-16-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download