3b1bac578e2e055518574f5e1e3dd2405382e90743ffcde078f41abc554e0731

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
20/06/2024, 00:35

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General

Target

2024-06-20_d67f622571cecabb5b6fac6a405c91a5_cryptolocker.exe
Size

42KB
MD5

d67f622571cecabb5b6fac6a405c91a5
SHA1

f5735a83bd9ea6ebaf91ad5625ca5876e3c9ad72
SHA256

3b1bac578e2e055518574f5e1e3dd2405382e90743ffcde078f41abc554e0731
SHA512

61e9a96291ad4c609c70d611a6170c5a18ac9fef657223905805a0d3cafd34d63038d2de315be56646c3be475d44d4504c85259131d97005041b3de85413619e
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCyD/95m:X6QFElP6n+gJQMOtEvwDpjBsYK/fbDFk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000500000000b309-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000500000000b309-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3044	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2140	2024-06-20_d67f622571cecabb5b6fac6a405c91a5_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 2140 wrote to memory of 3044	2140	2024-06-20_d67f622571cecabb5b6fac6a405c91a5_cryptolocker.exe	28
PID 2140 wrote to memory of 3044	2140	2024-06-20_d67f622571cecabb5b6fac6a405c91a5_cryptolocker.exe	28
PID 2140 wrote to memory of 3044	2140	2024-06-20_d67f622571cecabb5b6fac6a405c91a5_cryptolocker.exe	28
PID 2140 wrote to memory of 3044	2140	2024-06-20_d67f622571cecabb5b6fac6a405c91a5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-20_d67f622571cecabb5b6fac6a405c91a5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-20_d67f622571cecabb5b6fac6a405c91a5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2140
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3044

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
43KB

MD5
406d7270ceca7eec18fe47a0292b8b3a

SHA1
1b2f188eabd446c78522ca0710c919ee9f1e8b22

SHA256
05865e795fb9cc48056d3f6c43bb3359df91341585a34f7bd1e16481ae860243

SHA512
534b165e9fd4917e95af45598002b6000850068cfc07a514599ce89527323cc46f8e0d31a5a76b8adf47360f8b6e32d2f255c901f758ce6b50678dcd81fbe973

Download Submit
memory/2140-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2140-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2140-7-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3044-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3044-15-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download