1c33d3c9282a30380824511117679bd45afbb15a6cc0024f8443455ab95ee5de

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 19:29

Target

2024-05-21_569e845a22d1b79a91bdc736bb1d148d_cryptolocker.exe
Size

32KB
MD5

569e845a22d1b79a91bdc736bb1d148d
SHA1

dd6c09be39a8043b0ec7f17cc4be6beae8c4a684
SHA256

1c33d3c9282a30380824511117679bd45afbb15a6cc0024f8443455ab95ee5de
SHA512

35227de177b4d519bfc938a0d3b3a8bd7bebd384151f14a35df29fb8e62e66e6f9b17411d3cc409ea951b6553dbf447ace5741ac5731f84c3c87c1743220438d
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXuac:bG74zYcgT/Ekd0ryfj5

Score

9^/10

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2696-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\hasfj.exe	CryptoLocker_rule2
behavioral1/memory/2696-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2828-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2828-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

Processes:

hasfj.exe

pid process

2828 hasfj.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_569e845a22d1b79a91bdc736bb1d148d_cryptolocker.exe

pid process

2696 2024-05-21_569e845a22d1b79a91bdc736bb1d148d_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2828	hasfj.exe

pid	process
2696	2024-05-21_569e845a22d1b79a91bdc736bb1d148d_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_569e845a22d1b79a91bdc736bb1d148d_cryptolocker.exe

description	pid	process	target process
PID 2696 wrote to memory of 2828	2696	2024-05-21_569e845a22d1b79a91bdc736bb1d148d_cryptolocker.exe	hasfj.exe
PID 2696 wrote to memory of 2828	2696	2024-05-21_569e845a22d1b79a91bdc736bb1d148d_cryptolocker.exe	hasfj.exe
PID 2696 wrote to memory of 2828	2696	2024-05-21_569e845a22d1b79a91bdc736bb1d148d_cryptolocker.exe	hasfj.exe
PID 2696 wrote to memory of 2828	2696	2024-05-21_569e845a22d1b79a91bdc736bb1d148d_cryptolocker.exe	hasfj.exe

C:\Users\Admin\AppData\Local\Temp\hasfj.exe
"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
2⤵
- Executes dropped EXE
PID:2828

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
33KB

MD5
fe56ae37b0ed79863e00bf851930d4b6

SHA1
027232991769a451f71744aac4f14ff4af161afe

SHA256
5310a1516f3761f114495700135666c9ba23027ae393181ebbd31890326ebfd6

SHA512
9f4001f3f89050445669ecd93a86b5b50a726c95ec4ce7ac25d2556abec19bdb0abf36f06f7f29027b8d200326cbae68dcdfb0fb2e7052bd78b006969de761d9

Download Submit
memory/2696-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2696-9-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2696-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2696-1-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2696-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2828-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2828-18-0x0000000000820000-0x0000000000826000-memory.dmp

Filesize
24KB

Download
memory/2828-25-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/2828-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download