2fc6062c94d3ff6a37c63f6034f5db1b00f80e66ce3c745c1278f47fa62d96b0

Analysis

max time kernel
0s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2024, 20:07

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General

Target

2024-06-06_c3854812b4e2bb92b8e7663b4a0ed89c_cryptolocker.exe
Size

87KB
MD5

c3854812b4e2bb92b8e7663b4a0ed89c
SHA1

df6a54f74d9f06baa66ce32c0b4de3ac3f157981
SHA256

2fc6062c94d3ff6a37c63f6034f5db1b00f80e66ce3c745c1278f47fa62d96b0
SHA512

b5ef476a6aa54fccbf1ab21e1dafc6292ae21232272ad5de7adc90802840d45431a48f9a71ea5cb42902f7308e3b17e3e16c9761d1baa4ea1b1203878a3ee895
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6aP:V6a+pOtEvwDpjvp7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023284-15.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023284-15.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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation	2024-06-06_c3854812b4e2bb92b8e7663b4a0ed89c_cryptolocker.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 3808 wrote to memory of 1772	3808	2024-06-06_c3854812b4e2bb92b8e7663b4a0ed89c_cryptolocker.exe	81
PID 3808 wrote to memory of 1772	3808	2024-06-06_c3854812b4e2bb92b8e7663b4a0ed89c_cryptolocker.exe	81
PID 3808 wrote to memory of 1772	3808	2024-06-06_c3854812b4e2bb92b8e7663b4a0ed89c_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-06_c3854812b4e2bb92b8e7663b4a0ed89c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-06_c3854812b4e2bb92b8e7663b4a0ed89c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3808
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  PID:1772

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
87KB

MD5
a8e7227346f7551ba830d1a345f3a0cf

SHA1
5510f0bede505974e9979e85725c281387a73857

SHA256
f097ba8e6461baf00db3999c40550f5c4e0bf19746f813a393536015ed0924fb

SHA512
f461fa9ee575d15674167486cbe1ae3ba8928c1500d2986b4e70e3ba9197685bef492f58b7aebcc77e67b0a0f0f331d837b75e16fdb8f46f302c9b8dacfddc08

Download Submit
memory/1772-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1772-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3808-1-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/3808-8-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3808-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download