c54e6901aa1e0cbcebc39b234fc44ae1891d5063fb1e4d9a092e18d4bf39f846

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
24-02-2024 17:44

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General

Target

2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe
Size

48KB
MD5

66bc9356cb4cdc819502a21f1ad3d990
SHA1

3914ea7e2b8bd4338bf7e24989939fe690a8a8a1
SHA256

c54e6901aa1e0cbcebc39b234fc44ae1891d5063fb1e4d9a092e18d4bf39f846
SHA512

15c1a9ab661ed6efde1b05e24b420ce360eaf3614df7ff1747473fbf05f228035500d79a3dfb327fe5978e1fd47010c82606dab0bbf2236420cf1c7ebe8b5d04
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hS7J:bgGYcA/53GAA6y37nbS7J

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012352-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2760	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2956	2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_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 2956 wrote to memory of 2760	2956	2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe	28
PID 2956 wrote to memory of 2760	2956	2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe	28
PID 2956 wrote to memory of 2760	2956	2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe	28
PID 2956 wrote to memory of 2760	2956	2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_66bc9356cb4cdc819502a21f1ad3d990_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2760

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\hasfj.exe

Filesize
48KB

MD5
afdd2a3743e35dbc389bb9eb5c736084

SHA1
5c82ada92c168eded54da3204ab4b133bbe76951

SHA256
8dbee5a5c0acdafd90d7909c27670317d642c66bf91da735c9a5abfb35ecc786

SHA512
dd947bd69f7773c586577a260a5ccacb305c3b15b9fa5278159fb9d42f5da2352a9be9e3ceeda3c64ae36b138eb4b6de383f0fea81ebd97bd7e16d3abf39483e

Download Submit
memory/2760-15-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2760-22-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2956-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2956-1-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2956-7-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download