91163480514e891fb1cb1a0a843abd3280a375716427e6f56f1dfad58e501f5f

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
04-06-2024 16:45

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General

Target

2024-06-04_01b50602daf96b680b5f39483b6f07b5_cryptolocker.exe
Size

44KB
MD5

01b50602daf96b680b5f39483b6f07b5
SHA1

27bf5ee15c64b3c6becd41c1a8705387c39776d0
SHA256

91163480514e891fb1cb1a0a843abd3280a375716427e6f56f1dfad58e501f5f
SHA512

29a22f8269e3a1ee08db4472656a52442b710b2ec07e62c6875db694508eff1f8327230a0cfbbff8cc32c69dbcf666f79b9a667f626b8917b74246bcab0c3f50
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66TcJ:vj+jsMQMOtEvwDpj5HW5scJ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000122ee-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000122ee-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2860	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1876	2024-06-04_01b50602daf96b680b5f39483b6f07b5_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 1876 wrote to memory of 2860	1876	2024-06-04_01b50602daf96b680b5f39483b6f07b5_cryptolocker.exe	28
PID 1876 wrote to memory of 2860	1876	2024-06-04_01b50602daf96b680b5f39483b6f07b5_cryptolocker.exe	28
PID 1876 wrote to memory of 2860	1876	2024-06-04_01b50602daf96b680b5f39483b6f07b5_cryptolocker.exe	28
PID 1876 wrote to memory of 2860	1876	2024-06-04_01b50602daf96b680b5f39483b6f07b5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-04_01b50602daf96b680b5f39483b6f07b5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-04_01b50602daf96b680b5f39483b6f07b5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2860

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
44KB

MD5
1cea475bd8a52347f5ae166470a2c7da

SHA1
be297fd957874f61c06e3c8e3995da78d2788122

SHA256
15b2bf125e8681f40c9453f5756816643b96de807d49f9d6c10f9b498ce63e5d

SHA512
3800ac3470f9bd77626e7a9d2b4eec7e300263b68b987e41d20073ea2bf22268ad0f3cf812c8de44ae8e47402d1bdf358191f2aee8cee0619cc926a8e536ccd1

Download Submit
memory/1876-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1876-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1876-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2860-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2860-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download