b8528952d578266b26e9ddcea2f963c579c168f3be1d5f1e1e8b570c51fb220d

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 18:27

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-12_80aa8b60d67145ea5bd77875187ed88c_cryptolocker.exe
Size

73KB
MD5

80aa8b60d67145ea5bd77875187ed88c
SHA1

f7e0a30438e68d49ee06af536c4b25ae759fb430
SHA256

b8528952d578266b26e9ddcea2f963c579c168f3be1d5f1e1e8b570c51fb220d
SHA512

46ac942f77f41102d8b23d076760fdfeb357ec30d62cb2f0d6b100bed31b3ee943859882ffc190153863b62a48422642881bb15c817a7768281f90174c0133c8
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1siMo:X6a+SOtEvwDpjBZYvQd2b

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

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

Detection of Cryptolocker Samples 1 IoCs

Processes:

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-02-12_80aa8b60d67145ea5bd77875187ed88c_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	2024-02-12_80aa8b60d67145ea5bd77875187ed88c_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

4200 asih.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4200	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-02-12_80aa8b60d67145ea5bd77875187ed88c_cryptolocker.exe

description	pid	process	target process
PID 3152 wrote to memory of 4200	3152	2024-02-12_80aa8b60d67145ea5bd77875187ed88c_cryptolocker.exe	asih.exe
PID 3152 wrote to memory of 4200	3152	2024-02-12_80aa8b60d67145ea5bd77875187ed88c_cryptolocker.exe	asih.exe
PID 3152 wrote to memory of 4200	3152	2024-02-12_80aa8b60d67145ea5bd77875187ed88c_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-02-12_80aa8b60d67145ea5bd77875187ed88c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_80aa8b60d67145ea5bd77875187ed88c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3152

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:4200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
73KB

MD5
8fb5fe45f9c2dd894a064c29ecc2fcba

SHA1
31db19f0ea9e780c54a8e7ba16af94d88e56d330

SHA256
ed0e0bb749d82aad25ec174235e306de78d6ec29cb9a613427a1742886b5c4e5

SHA512
6e00a564eccad50ab6f22b5aa3e9db8340ced58068fa52b82550b571f12af456e56a7bb96c64ad6cbfec7b2b7c93f80270b435c859822173c27e4cebaecedb87

Download Submit
memory/3152-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3152-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3152-2-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/4200-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4200-19-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download