67eaa9824ed5ecdf9ad7cd11b450d5260b1b77e9d6ed2cc9559140e93aad94f2

General

Target

2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe
Size

40KB
MD5

c006d8db648b239199eca8e7e9eee27b
SHA1

e619be707ce52b016823f15226c78610d0569b04
SHA256

67eaa9824ed5ecdf9ad7cd11b450d5260b1b77e9d6ed2cc9559140e93aad94f2
SHA512

76386f47f53f91efd15a44acc47eda66a768b000063db4194f8bba793e53bf7a20253523612b6ded9a8a63d8a37177e88da702b2fb0c70f580ff0c35bc4ac714
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaB0gB:qDdFJy3QMOtEvwDpjjWMl7TdCgB

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1728-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/1728-13-0x0000000002260000-0x0000000002270000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1728-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2364-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2364-28-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1728-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/1728-13-0x0000000002260000-0x0000000002270000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1728-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2364-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2364-28-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1728-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
\Users\Admin\AppData\Local\Temp\asih.exe	UPX
behavioral1/memory/1728-13-0x0000000002260000-0x0000000002270000-memory.dmp	UPX
behavioral1/memory/1728-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2364-18-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2364-28-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2364 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe

pid process

1728 2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe

pid	process
2364	asih.exe

pid	process
1728	2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/1728-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral1/memory/1728-13-0x0000000002260000-0x0000000002270000-memory.dmp	upx
behavioral1/memory/1728-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2364-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2364-28-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

Processes:

2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe

description	pid	process	target process
PID 1728 wrote to memory of 2364	1728	2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe	asih.exe
PID 1728 wrote to memory of 2364	1728	2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe	asih.exe
PID 1728 wrote to memory of 2364	1728	2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe	asih.exe
PID 1728 wrote to memory of 2364	1728	2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_c006d8db648b239199eca8e7e9eee27b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
40KB

MD5
0add2b24edac9df78df265a71b80a27d

SHA1
7d43b6ea9f334e3ca7c24c649647b0999fe43fec

SHA256
37d2076c18de17c9b983b7777a711e6b867bf0fc66e3ee5491c6f8179fd7898c

SHA512
053d3c2a78c85c35ace1436b2611738b16056a028b8fb880b680cf3770d322eb6b478e7db9c1776b5b168c854f5b8db8519e608cf2812692a5ed19572053b747

Download Submit
memory/1728-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1728-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1728-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1728-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1728-13-0x0000000002260000-0x0000000002270000-memory.dmp

Filesize
64KB

Download
memory/1728-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2364-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2364-27-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2364-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads