3bbb2c91f03ca847f1af7fb4a91112f07e09176ea8abbf25f585d74258a3ce9c

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 19:23

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General

Target

2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe
Size

47KB
MD5

197271b6c0ce5eeaabadf01f9262dfe7
SHA1

213d63b55103b514cdfb39ecbda641144d423539
SHA256

3bbb2c91f03ca847f1af7fb4a91112f07e09176ea8abbf25f585d74258a3ce9c
SHA512

9f68533630526ab56a88440b307ab5a554b61722748de1f6c9e9e9141875a7fa10de1d268eea3054faa197d5ffb915fd1af4972128d4fef36b1b5b1c2957ddb3
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvy3Sp8i:79mqyNhQMOtEvwDpjBzckqSui

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1044-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1044-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1044-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/3048-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1044-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

3048 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe

pid process

1044 2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3048	asih.exe

pid	process
1044	2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe

description	pid	process	target process
PID 1044 wrote to memory of 3048	1044	2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe	asih.exe
PID 1044 wrote to memory of 3048	1044	2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe	asih.exe
PID 1044 wrote to memory of 3048	1044	2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe	asih.exe
PID 1044 wrote to memory of 3048	1044	2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_197271b6c0ce5eeaabadf01f9262dfe7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1044

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:3048

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
47KB

MD5
23116854284dc4555850117ed0b833c5

SHA1
4dfb216dcd1df7aae6de8860467fb52a9edfbb69

SHA256
f9c87612fb73e53f58a9bdea57d0bc2e0d390072d2f1c3461a1d210670bc1f91

SHA512
8e589b8370772e5330c53c861837aaba512250b3d8ce34c0c2635c9953a6ea66b70b539dd19362296d0b01596ee9d2267a091c693a736aed2fafc9599e2f41ea

Download Submit
memory/1044-0-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/1044-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1044-3-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1044-2-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/1044-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3048-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3048-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3048-25-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download