cbd011939d35120c061566dc0f08c4192a1a92bb6e90d1a38e03ee068cd4745d

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
14/06/2024, 07:33

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General

Target

2024-06-14_333292517fc00b131dc8c5e0d5d9736d_cryptolocker.exe
Size

54KB
MD5

333292517fc00b131dc8c5e0d5d9736d
SHA1

40a1aeb71766235170af0f3da2840e20b78fbd7d
SHA256

cbd011939d35120c061566dc0f08c4192a1a92bb6e90d1a38e03ee068cd4745d
SHA512

c2af084cbb5b9ed90b1ca519d28d80c1ff091b13ed2a1e420b817368ddaf5b9863dc4ad868e7e8d1ee0483dfd3c100b8f0f519022c62070d37023808ea1a26a1
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaTIl:X6QFElP6n+gJBMOtEvwDpjBtExmlC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002344d-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002344d-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-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation	2024-06-14_333292517fc00b131dc8c5e0d5d9736d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3076	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 4676 wrote to memory of 3076	4676	2024-06-14_333292517fc00b131dc8c5e0d5d9736d_cryptolocker.exe	82
PID 4676 wrote to memory of 3076	4676	2024-06-14_333292517fc00b131dc8c5e0d5d9736d_cryptolocker.exe	82
PID 4676 wrote to memory of 3076	4676	2024-06-14_333292517fc00b131dc8c5e0d5d9736d_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-14_333292517fc00b131dc8c5e0d5d9736d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_333292517fc00b131dc8c5e0d5d9736d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4676
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3076

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
54KB

MD5
54016465456efc09190b9ccefaf60c01

SHA1
75293bf04c7ef527cc8fa7cf73be38b481c0424a

SHA256
fd15ba6b70044d10a15881e9853342d35c9bd8b7aed4e38499f3ad0438a9994d

SHA512
9a5bc222bd986ff82a04085af4025099918810239f3836f93746772e51b31162f9639414b8f4f93ea19d84bbc91cffc5809e92af26458ad701abc36b78d6f74f

Download Submit
memory/3076-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3076-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4676-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4676-8-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4676-1-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download