687697d175f11f532195390c15f0d5e76b9a046149eaeaeb55fe700a0a7aa65b

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 17:47

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General

Target

2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe
Size

52KB
MD5

bc41cc6cb711a6d8d00a2786d9ddba3b
SHA1

bf1f559b6b663ede350d3ec215183494f0389549
SHA256

687697d175f11f532195390c15f0d5e76b9a046149eaeaeb55fe700a0a7aa65b
SHA512

6d8578b00597457ae80ab7bed45af8f83254411b1ca3666ed02c06254fd15696f6b0d636b80f0c0b42d8ec933fdc4229ddf287e90a5d1ad76e2b6f93a730b129
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV29yDD:X6QFElP6n+gJBMOtEvwDpjBtE1yI9y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1804 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe

pid process

2248 2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1804	asih.exe

pid	process
2248	2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe

description	pid	process	target process
PID 2248 wrote to memory of 1804	2248	2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe	asih.exe
PID 2248 wrote to memory of 1804	2248	2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe	asih.exe
PID 2248 wrote to memory of 1804	2248	2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe	asih.exe
PID 2248 wrote to memory of 1804	2248	2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_bc41cc6cb711a6d8d00a2786d9ddba3b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2248

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1804

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
53KB

MD5
a12530cedafbc100accd182f09b4ce2d

SHA1
09887726c15bffd69e7aada9a3f3c1d32addc0ca

SHA256
6457c22f0eed7ae83fbc27fd924df5786333c5c07bbfc1a9e98b22e2fa747ff1

SHA512
a22a58e32299dad66291f264d22890938701ac2cd519db8957a682ebe1d9fa72b756c5eb94fa330f31e98eefac41ea85842c591107f62aed0a7834bb11b23d55

Download Submit
memory/2248-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2248-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2248-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download