e2b8af9541f296edbeb2caf7e97c91c954f9fe0c3b2e08794b1d25d2983d3006

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 05:36

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General

Target

2024-03-26_59941602a219560cc7c2ca1759ffa017_cryptolocker.exe
Size

97KB
MD5

59941602a219560cc7c2ca1759ffa017
SHA1

7545575b54bfd361caed2d1fa7f239b3a4cdc58a
SHA256

e2b8af9541f296edbeb2caf7e97c91c954f9fe0c3b2e08794b1d25d2983d3006
SHA512

b6edae901f1257dd828a802b47bce335e40adde77686cbbae3fb64b30c054439e0c07d697bdac77ddb4415da006cda087e7bc2ec8cd37af4ef88738e537ef6c2
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp0QVOa:V6a+pOtEvwDpjtzu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014466-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014466-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2548	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3048	2024-03-26_59941602a219560cc7c2ca1759ffa017_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 3048 wrote to memory of 2548	3048	2024-03-26_59941602a219560cc7c2ca1759ffa017_cryptolocker.exe	28
PID 3048 wrote to memory of 2548	3048	2024-03-26_59941602a219560cc7c2ca1759ffa017_cryptolocker.exe	28
PID 3048 wrote to memory of 2548	3048	2024-03-26_59941602a219560cc7c2ca1759ffa017_cryptolocker.exe	28
PID 3048 wrote to memory of 2548	3048	2024-03-26_59941602a219560cc7c2ca1759ffa017_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_59941602a219560cc7c2ca1759ffa017_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_59941602a219560cc7c2ca1759ffa017_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2548

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
97KB

MD5
3fba7f5c436f5c7d9934be9fe4194429

SHA1
fe844ae319b4af2ec908b817a4f1cf5b3babb08d

SHA256
def12a7babfa5eb63b5c05a8f14b01f51ac9072e447ab1b3a7512c3b76472556

SHA512
bd53c79620a4abd1e605d0ba9c8af21ba69b65abb93bd3f888227f1fbb1de6642194fb6f6e0a3be1ff94e3d3e46b82725457df13aa78065ff0acf183fd49a325

Download Submit
memory/2548-15-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2548-17-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3048-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3048-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3048-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download