a272ee751be201db4e926eb908f9c1e7f7ec4a7577f3355520c7e5a78159588c

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 20:26

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General

Target

2024-04-30_500f85dcb94fd4d28aff313a0971e7c9_cryptolocker.exe
Size

65KB
MD5

500f85dcb94fd4d28aff313a0971e7c9
SHA1

fd3de894c36ac827a6696bb19435252241eaab37
SHA256

a272ee751be201db4e926eb908f9c1e7f7ec4a7577f3355520c7e5a78159588c
SHA512

5bbd799153b85cdaa4ce0dc03685566f82b3c77ec06b068aa85bcc1a7a408c54cb9b1a21909436162b98221df8f5af8579008e8c31fc288623976935e0b42b0c
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmh85+V:V6a+pOtEvwDpjv5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014e3d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014e3d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3064	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	2024-04-30_500f85dcb94fd4d28aff313a0971e7c9_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 1712 wrote to memory of 3064	1712	2024-04-30_500f85dcb94fd4d28aff313a0971e7c9_cryptolocker.exe	28
PID 1712 wrote to memory of 3064	1712	2024-04-30_500f85dcb94fd4d28aff313a0971e7c9_cryptolocker.exe	28
PID 1712 wrote to memory of 3064	1712	2024-04-30_500f85dcb94fd4d28aff313a0971e7c9_cryptolocker.exe	28
PID 1712 wrote to memory of 3064	1712	2024-04-30_500f85dcb94fd4d28aff313a0971e7c9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_500f85dcb94fd4d28aff313a0971e7c9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_500f85dcb94fd4d28aff313a0971e7c9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3064

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
65KB

MD5
88babf0c359ea374f6a57950e1fd59bf

SHA1
c83f49b6cfd2f3d6f5d29ec1f5e6ff0d7f0303a9

SHA256
897d761bca48285055c0698a31e44cd22d4955582ea2a9d98a833936f693c755

SHA512
83f481452944f4211da3a20fc8432987b7a283645d1dd64c4b7cb172a83f37bc16a28ace7e2f9820fc4f598c574bf30d1920e2dfa7d7fb3232e34c6e733f3720

Download Submit
memory/1712-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1712-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/1712-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3064-15-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/3064-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download