f8ec6fc06ed1563b16676817eb97b1a5109e12f4ec4ef06005c2d4ca42d64d14

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02/06/2024, 04:30

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General

Target

2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe
Size

76KB
MD5

5c8f1128f7525d7d7e36b0f472680858
SHA1

c027e7a3c59cb037435f2b14b22085a9636308e0
SHA256

f8ec6fc06ed1563b16676817eb97b1a5109e12f4ec4ef06005c2d4ca42d64d14
SHA512

20d074a82a6f3d06ce5e2e6ac2a543150400d3e4f8c8f6f264d8f33a0dc3f17fdce4f116bc0afa3aa1a46b4734e82e3ac8477e9208dcce7a51f4a026cc4f73ae
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsoLkzW:X6a+SOtEvwDpjBZYvQd2J

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002328e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000900000002328e-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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1168	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 1488 wrote to memory of 1168	1488	2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe	82
PID 1488 wrote to memory of 1168	1488	2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe	82
PID 1488 wrote to memory of 1168	1488	2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_5c8f1128f7525d7d7e36b0f472680858_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1168

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
77KB

MD5
7d62e4763ab2617694a4850222a66fce

SHA1
afceffb8a40ba431001ed32dc62862663985bf84

SHA256
2ab115235b68a1df2a5bb7432e3b4382592a4996f90f35d9bef25655a063c8c2

SHA512
8c070528d393b6958d243572ad3f2bfbf2102a78b451a6375a786a93ddbc2c3bae8a1c60554f808f7cce8ab0f30d411dc10d0b8c20c7891738848cabea8034a1

Download Submit
memory/1168-23-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/1168-17-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download
memory/1488-0-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download
memory/1488-1-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1488-8-0x00000000021E0000-0x00000000021E6000-memory.dmp

Filesize
24KB

Download