ea9baf1b24d3fd5990b6a951476a4bac26487bce15adf6c5b36bc8cdf3a0fcff

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 17:58

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General

Target

2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe
Size

49KB
MD5

fe7923872dc90c317bca9e03c2d25bd7
SHA1

8626aa02ca9cf4e2e981d733888d40a21edd9fac
SHA256

ea9baf1b24d3fd5990b6a951476a4bac26487bce15adf6c5b36bc8cdf3a0fcff
SHA512

693042c566d2ae238f34efddfce91d2070a7f947f700692beb80a4c19a7b4ce4429705a81fbb10cda9346ceb4e2386630f05ce334b46be56ed41a110eabcff0a
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qnTHY+E:79mqyNhQMOtEvwDpjBxe8GW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1708-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/1708-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2676-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1708-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/1708-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2676-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2676 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe

pid process

1708 2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2676	asih.exe

pid	process
1708	2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe

description	pid	process	target process
PID 1708 wrote to memory of 2676	1708	2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe	asih.exe
PID 1708 wrote to memory of 2676	1708	2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe	asih.exe
PID 1708 wrote to memory of 2676	1708	2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe	asih.exe
PID 1708 wrote to memory of 2676	1708	2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_fe7923872dc90c317bca9e03c2d25bd7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1708

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2676

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
49KB

MD5
f6fd2fc17cb730562817a4be19e62bb3

SHA1
02b19f132ab6485ae5bedf9d853d4326ed7306b1

SHA256
a14affe828bfa7ffeae13a699b39b4b821487db9ff4b0c6dd608cd495a0030de

SHA512
70828cca1ccf16c0e31d98f3b6eea8c663854e2a9d1fb05b04e627463a5cf9adb3b1e30081e9a8c15fadf3797311578824fea2b2fc7832fa7355d7994708d5ff

Download Submit
memory/1708-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1708-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1708-3-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1708-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1708-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2676-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download