e7893fae75b88ea672f0ef5ce3f87423e858ce1ecac31dce9384264a957e065f

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27-03-2024 04:24

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General

Target

2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe
Size

62KB
MD5

ff34845088e4c2104685d91636363d21
SHA1

5fd6bd3adf18989082affb577f7906817091f44b
SHA256

e7893fae75b88ea672f0ef5ce3f87423e858ce1ecac31dce9384264a957e065f
SHA512

470a2238dbfd855739ec8e0aa3defb2f10b3f28c2cfc691395d170045ee00b6e378910361c80e5a9bd39ac641938187b0736f1e099dbeae71fa6b2667dc16416
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLZ/xblzoa:X6a+SOtEvwDpjBrOP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000226fd-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000226fd-12.dat	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
228	asih.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3520 wrote to memory of 228	3520	2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe	90
PID 3520 wrote to memory of 228	3520	2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe	90
PID 3520 wrote to memory of 228	3520	2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_ff34845088e4c2104685d91636363d21_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:228

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

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Downloads

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

Filesize
63KB

MD5
bfa4a55c2ac98457186e6e5b9e397d11

SHA1
4131afd27e58d11e4f8f7c797b2454d2a4b1c2e3

SHA256
e6e2c41b0decf54129311ce878ac1050c6ceac4a02c71975a97d6f77ae5444ef

SHA512
ea9a4235c3a0d0fc89e68d7e4300a4d6b8860da8b3690d48ce3925e853babdb45e7e39f93369fdb240bf4b6979b8228d3c3381f0c98f99bbf681a3356b34d9aa

Download Submit
memory/228-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/228-18-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/3520-0-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/3520-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/3520-2-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download