4d9e2fb53ef4ea4342df748df0dc6dc92391d8d660288da1dd1a54119550b3a6

Analysis

max time kernel
151s
max time network
158s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/05/2024, 01:30

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General

Target

2024-05-08_d9b17930096dec0d3c8836ce178f6a77_cryptolocker.exe
Size

41KB
MD5

d9b17930096dec0d3c8836ce178f6a77
SHA1

7cbbe99e888a3ca7cc9e8f28fd80217d2a3f48ff
SHA256

4d9e2fb53ef4ea4342df748df0dc6dc92391d8d660288da1dd1a54119550b3a6
SHA512

9ebdd936b6f49940848787c4709e486d7e883dc365a5f3249beedb5f4af42feb31d8792e6f0bc94b24c4fba37b71357fc27fa2a37293701937e5d6472e3278bb
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+rc5vVcSX:bgGYcA/53GADw8ClrcTcSX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014fe1-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2204	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2804	2024-05-08_d9b17930096dec0d3c8836ce178f6a77_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 2804 wrote to memory of 2204	2804	2024-05-08_d9b17930096dec0d3c8836ce178f6a77_cryptolocker.exe	28
PID 2804 wrote to memory of 2204	2804	2024-05-08_d9b17930096dec0d3c8836ce178f6a77_cryptolocker.exe	28
PID 2804 wrote to memory of 2204	2804	2024-05-08_d9b17930096dec0d3c8836ce178f6a77_cryptolocker.exe	28
PID 2804 wrote to memory of 2204	2804	2024-05-08_d9b17930096dec0d3c8836ce178f6a77_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-08_d9b17930096dec0d3c8836ce178f6a77_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-08_d9b17930096dec0d3c8836ce178f6a77_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2204

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\hasfj.exe

Filesize
41KB

MD5
e6b3cb6f82433ecc8227c051e196b8a5

SHA1
c91d2157a0f508192c84fb2f111443f2dbb3b0fd

SHA256
09c37e176cbf2bdd2317e49291506a12056352c6e1dae0237957474d3a770c92

SHA512
d2228dfbf09379dab32539832b93a5e67500fa7adb258f653e842cd0c672734e6dcd98d87ce4313e74e926d379ba3e7959fc1f7b2beee1b8f8f369d7b6cec7de

Download Submit
memory/2204-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2804-2-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2804-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2804-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download