a1145b9f28f005f5accbee42a03a2b379d13d13282b12deb54bda97dd12b6d89

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02-02-2024 02:49

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General

Target

2024-02-02_cfc401e3f03c29895e012b3cc146bc94_cryptolocker.exe
Size

73KB
MD5

cfc401e3f03c29895e012b3cc146bc94
SHA1

1e772f381749915805c41d2210ae61c9e094f7b1
SHA256

a1145b9f28f005f5accbee42a03a2b379d13d13282b12deb54bda97dd12b6d89
SHA512

175ed26d51af8ea2d0d86dfc545ab31ac4e1b04064da7d57b8bf550c0be2cecea83886291645d3c6c0040714095f7da58ab34a363e9928198b8736d928ec49e1
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1Rz:X6a+SOtEvwDpjBZYvQd2F

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122c9-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122c9-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1920	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2432	2024-02-02_cfc401e3f03c29895e012b3cc146bc94_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 2432 wrote to memory of 1920	2432	2024-02-02_cfc401e3f03c29895e012b3cc146bc94_cryptolocker.exe	28
PID 2432 wrote to memory of 1920	2432	2024-02-02_cfc401e3f03c29895e012b3cc146bc94_cryptolocker.exe	28
PID 2432 wrote to memory of 1920	2432	2024-02-02_cfc401e3f03c29895e012b3cc146bc94_cryptolocker.exe	28
PID 2432 wrote to memory of 1920	2432	2024-02-02_cfc401e3f03c29895e012b3cc146bc94_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-02_cfc401e3f03c29895e012b3cc146bc94_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-02_cfc401e3f03c29895e012b3cc146bc94_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1920

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
e8b0d15c8018a8a8f1d18a45efa2fe2b

SHA1
aeab98d145fa6469f971e06e0f9ada09901193ee

SHA256
9989e7714eedfd0682c5f2d25a9b0823467c3984c927894e884f03c721fe5f92

SHA512
6134f22b5960108379a86bab81b0d576caf111a3d789284971cc261c7cfe27a77952bf9a9cd22d494fd2a1b7577374c4747b69074964692e8f205054079aaf7e

Download Submit
memory/1920-15-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1920-17-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download
memory/2432-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2432-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2432-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download