54d05422314bfa07c461f7b985006fbff324643555220fd5f7efd6449bc1eb83

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 12:30

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General

Target

2024-03-08_19c97cb62c628b0d8a59bd4c67252ebf_cryptolocker.exe
Size

73KB
MD5

19c97cb62c628b0d8a59bd4c67252ebf
SHA1

9c3f55d2dce15181348c8a3cc484ee640040cabe
SHA256

54d05422314bfa07c461f7b985006fbff324643555220fd5f7efd6449bc1eb83
SHA512

83913f276c385b5888a381dbc68c021a39a4ca976e22b683ac88c77d2ff781245047a59f8793a6c1eb279652eba3032c53a4297faf16946dab500b45f632785c
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1Uv:X6a+SOtEvwDpjBZYvQd2c

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012254-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012254-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1688	2024-03-08_19c97cb62c628b0d8a59bd4c67252ebf_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 1688 wrote to memory of 2056	1688	2024-03-08_19c97cb62c628b0d8a59bd4c67252ebf_cryptolocker.exe	28
PID 1688 wrote to memory of 2056	1688	2024-03-08_19c97cb62c628b0d8a59bd4c67252ebf_cryptolocker.exe	28
PID 1688 wrote to memory of 2056	1688	2024-03-08_19c97cb62c628b0d8a59bd4c67252ebf_cryptolocker.exe	28
PID 1688 wrote to memory of 2056	1688	2024-03-08_19c97cb62c628b0d8a59bd4c67252ebf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-08_19c97cb62c628b0d8a59bd4c67252ebf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_19c97cb62c628b0d8a59bd4c67252ebf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2056

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
73KB

MD5
7b7d87b7fcf8439b7cbab40a9129ab49

SHA1
89ba725b7f6355b5d02e4eca582b45ecb37cf48a

SHA256
72270a03c14aa56ae605fbfe297409df3f2cb77100d8790e5680b0eda0b6fad6

SHA512
96c0ae52a5aef1bb56a7806707f33ce3fe73c8a0eba5420e48f75980cf79f21ce3164e8b9958f37b9e09752e21a92647cd99e96986d5d9338fed0a3906cd17c8

Download Submit
memory/1688-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1688-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1688-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2056-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2056-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download