b721bc7b4c96b0f6aa04414f073fe6ef23887dc7d7257e8a00f5e33807554cde

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
14/05/2024, 01:27

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General

Target

2024-05-14_a52ecceb7b2e675061a14f68a9fa075b_cryptolocker.exe
Size

43KB
MD5

a52ecceb7b2e675061a14f68a9fa075b
SHA1

21f5cedde8f3dfad5c6ce86d3328784dd0c770f1
SHA256

b721bc7b4c96b0f6aa04414f073fe6ef23887dc7d7257e8a00f5e33807554cde
SHA512

33a957aeb6cc9abd8eb223166b976fce61de52f7fd9c2e8649a4341257ae50b4da0db8b22a349b9e91c8760cc7aa848213b702be9cb553964977c75df29751d9
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66TcQ:vj+jsMQMOtEvwDpj5HW5scQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001225d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001225d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2556	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	2024-05-14_a52ecceb7b2e675061a14f68a9fa075b_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 2208 wrote to memory of 2556	2208	2024-05-14_a52ecceb7b2e675061a14f68a9fa075b_cryptolocker.exe	28
PID 2208 wrote to memory of 2556	2208	2024-05-14_a52ecceb7b2e675061a14f68a9fa075b_cryptolocker.exe	28
PID 2208 wrote to memory of 2556	2208	2024-05-14_a52ecceb7b2e675061a14f68a9fa075b_cryptolocker.exe	28
PID 2208 wrote to memory of 2556	2208	2024-05-14_a52ecceb7b2e675061a14f68a9fa075b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-14_a52ecceb7b2e675061a14f68a9fa075b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-14_a52ecceb7b2e675061a14f68a9fa075b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2556

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
43KB

MD5
56c06fba9dd97c08c52493f9b2a23a69

SHA1
c4519417695c1e7fafce781e47a8bb7a7d52cc97

SHA256
95ac444359d05d0cb8d404fcc8dd2147fdb650b46d81e83807e104cd16b6c0a0

SHA512
425e90ce853556923026f36d5f19b5a3d9d58ff5cc8d8a37de07cb08e6b16c9fadc6f1a597d249abd16916a7b69c13729d24e73692bb29ba1a02942eddef4f4f

Download Submit
memory/2208-2-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2208-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2208-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2556-15-0x00000000020B0000-0x00000000020B6000-memory.dmp

Filesize
24KB

Download
memory/2556-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download