a2d0f28424df983f8d99454c217ed0aaa08cf173686aa79919c15788cc82944e

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
21-05-2024 15:40

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General

Target

2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe
Size

49KB
MD5

69af2198a3304f509eb4f46d92276ed8
SHA1

73a9184b51c64f4ba6ffbb674424bc0226175175
SHA256

a2d0f28424df983f8d99454c217ed0aaa08cf173686aa79919c15788cc82944e
SHA512

b1712077325ea9f280d935194e887c3e5a4413897fb489eda555ecdbf9d91eafcca0bf299b01f0f82bbbd434cae071102eb2a43678d3e65ac1067912b32ff16f
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfF:X6QFElP6n+gJBMOtEvwDpjBtEdXfF

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

2916 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe

pid process

1932 2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2916	asih.exe

pid	process
1932	2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe

description	pid	process	target process
PID 1932 wrote to memory of 2916	1932	2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe	asih.exe
PID 1932 wrote to memory of 2916	1932	2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe	asih.exe
PID 1932 wrote to memory of 2916	1932	2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe	asih.exe
PID 1932 wrote to memory of 2916	1932	2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_69af2198a3304f509eb4f46d92276ed8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1932

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2916

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
12572b18cc898a820058d016da64ad08

SHA1
599665dc08451045249b93212bb7738e6626d356

SHA256
c4aa5786d18089182c9571424d5bbca6f9cc078238414ad0757d92d777409b36

SHA512
ffd9ce215e8e5c92c579e424b6208a49c46c72d6f211b95cae8c06c59638e780dfc663359a854a0e9075f9a21c6cd26ff31ab49caeceed069ea332ef6673cf62

Download Submit
memory/1932-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1932-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1932-8-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2916-15-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2916-22-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download