ba3383d920dbc96e8d35a477a516d22ccf47a1649fd1db3c26423ef878aa982d

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 20:36

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General

Target

2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe
Size

76KB
MD5

83d8bdf74e1eecfb42caa1c8cc91d1cf
SHA1

a374141cdcd17aa260ecee96727efbb5ba8bed28
SHA256

ba3383d920dbc96e8d35a477a516d22ccf47a1649fd1db3c26423ef878aa982d
SHA512

624f14c7c7b7f513717d5392934aa482980c7ec78973cdfd4faaacda572eebf795f95aef2fe08cdf33db99ac79da23a9c49c0fa3f4f37d9fdea107d52cf13d36
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLkY:X6a+SOtEvwDpjBZYvQd2P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

1808 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe

pid process

848 2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1808	asih.exe

pid	process
848	2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe

description	pid	process	target process
PID 848 wrote to memory of 1808	848	2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe	asih.exe
PID 848 wrote to memory of 1808	848	2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe	asih.exe
PID 848 wrote to memory of 1808	848	2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe	asih.exe
PID 848 wrote to memory of 1808	848	2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_83d8bdf74e1eecfb42caa1c8cc91d1cf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:848

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:1808

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
76KB

MD5
e6d8f74f6a17203d90f3b6881df90bb6

SHA1
7aebb13ad15355be835955cd7106688785166a52

SHA256
a6ea3162e8ad23e7202ecf0c1922e7c1cda120980e5e483244d4efc95c6ce2ad

SHA512
d308205e2027775bb938b1b95ec38a284455ba9e94b5f0c78aa33db7bc7b6750ea02fdbc1afa00711db05d943e3967aa0df23d99eaa51578fa1465623c43a4d2

Download Submit
memory/848-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/848-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/848-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1808-22-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1808-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download