5c6b7e8ca85cfcb72a87e10581947793ce90d63fbcb6fb0bf5296bc0921af41d

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20-02-2024 12:40

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General

Target

2024-02-20_a851d7322cb5c8e0ce708b889b25a9f5_cryptolocker.exe
Size

98KB
MD5

a851d7322cb5c8e0ce708b889b25a9f5
SHA1

c26652b2f784c3ad54948ac3939f6e6b256cf5b2
SHA256

5c6b7e8ca85cfcb72a87e10581947793ce90d63fbcb6fb0bf5296bc0921af41d
SHA512

7f228fbafb20b9468329c7a6866f4d969496ce5ecffd1adbe2f0e3b8140cef8d0b68cfa0e26524513c31b0f9fe07ac0a1734b67f5b588e8dcf08fe79e92782ee
SSDEEP

1536:26QFElP6n+gBQMOtEvwDpjQGYQbN/PKwNCJ3:26a+2OtEvwDpjtzu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012270-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012270-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2716	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1684	2024-02-20_a851d7322cb5c8e0ce708b889b25a9f5_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 1684 wrote to memory of 2716	1684	2024-02-20_a851d7322cb5c8e0ce708b889b25a9f5_cryptolocker.exe	28
PID 1684 wrote to memory of 2716	1684	2024-02-20_a851d7322cb5c8e0ce708b889b25a9f5_cryptolocker.exe	28
PID 1684 wrote to memory of 2716	1684	2024-02-20_a851d7322cb5c8e0ce708b889b25a9f5_cryptolocker.exe	28
PID 1684 wrote to memory of 2716	1684	2024-02-20_a851d7322cb5c8e0ce708b889b25a9f5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-20_a851d7322cb5c8e0ce708b889b25a9f5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-20_a851d7322cb5c8e0ce708b889b25a9f5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2716

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
98KB

MD5
81124bc33565594f95e66df0ae3ea790

SHA1
6c03a60748aee6d6552a26ab2cc505e8b72aecaf

SHA256
6e5fd386f9271915e9dd6eb22bd509b6bd3842ff0293a898d88107babe47b77a

SHA512
5b5d5ad12e72188afc0bddfba87b17a1c9df413812b14ace8cd9d5598387db1a683d538c805a8e38a8090e0dc33f4fd84a25d36d0982149d3f16fa5af719e0fd

Download Submit
memory/1684-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1684-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1684-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2716-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2716-17-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download