d9dd5c76de3d6d2fe2e1bbbd92984b5c88957153a2c3ef5660cbd308e02116d7

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
09/05/2024, 21:52

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General

Target

2024-05-09_3b89a259a0bdb17dd8cc0223ca5f9dd6_cryptolocker.exe
Size

75KB
MD5

3b89a259a0bdb17dd8cc0223ca5f9dd6
SHA1

f76ca7c73ed5d639888197707f450b187e567ac6
SHA256

d9dd5c76de3d6d2fe2e1bbbd92984b5c88957153a2c3ef5660cbd308e02116d7
SHA512

8e91924e75c90e578067436fd22dcf6bb0a3f564c736155c5f240bb1b372cef97e2d2279d174bc0068a11153592d7f8110b10214c1a91bf096434e66f7f2c5d7
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsS:X6a+SOtEvwDpjBZYvQd2B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012286-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012286-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2348	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2232	2024-05-09_3b89a259a0bdb17dd8cc0223ca5f9dd6_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 2232 wrote to memory of 2348	2232	2024-05-09_3b89a259a0bdb17dd8cc0223ca5f9dd6_cryptolocker.exe	28
PID 2232 wrote to memory of 2348	2232	2024-05-09_3b89a259a0bdb17dd8cc0223ca5f9dd6_cryptolocker.exe	28
PID 2232 wrote to memory of 2348	2232	2024-05-09_3b89a259a0bdb17dd8cc0223ca5f9dd6_cryptolocker.exe	28
PID 2232 wrote to memory of 2348	2232	2024-05-09_3b89a259a0bdb17dd8cc0223ca5f9dd6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_3b89a259a0bdb17dd8cc0223ca5f9dd6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_3b89a259a0bdb17dd8cc0223ca5f9dd6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2348

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
75KB

MD5
4b3ab6a67acc4da8f28e42081cb39a9e

SHA1
386188dd1467c8a5e3a4de4d874d86fe03beb4c5

SHA256
c295a70a207a851b3d303123cec4da91a4a0bfd443e0dec311fbfd004624f710

SHA512
e2266548d84f53fbd7d519ac40b4eed104c3b24de835d921a6f6f2d8b8bfb7b3681782c95b5f4a74cc6664868535c59c1d55112bc1c7aaa0168c6ce7d6ff1338

Download Submit
memory/2232-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2232-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2232-8-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2348-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2348-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download