7439e9be8d897f34547ea27c7cc73e12d18104ca6ba21c764a6f687fa35dc19d

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11/06/2024, 05:11

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General

Target

2024-06-11_89897df860f2e2975c0b5f930345babc_cryptolocker.exe
Size

53KB
MD5

89897df860f2e2975c0b5f930345babc
SHA1

cb2d142e7c0e79c00a201f00c43a5bd29d6fc00a
SHA256

7439e9be8d897f34547ea27c7cc73e12d18104ca6ba21c764a6f687fa35dc19d
SHA512

d8041f1ed349000dc6a2b84cb0b421be966d1fb9bc7335cca98519ff46e509cfb50275c379aa3661ff37ea2da4d056f4cb7b89bc645734049896b45a5a84f475
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIRszDr6Pd:79mqyNhQMOtEvwDpjBxe8TpXRSDePd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/1680-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0006000000023278-13.dat	CryptoLocker_rule2
behavioral2/memory/1680-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/1680-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0006000000023278-13.dat	CryptoLocker_set1
behavioral2/memory/1680-17-0x0000000000500000-0x000000000050F000-memory.dmp	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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-06-11_89897df860f2e2975c0b5f930345babc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1644	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 1680 wrote to memory of 1644	1680	2024-06-11_89897df860f2e2975c0b5f930345babc_cryptolocker.exe	82
PID 1680 wrote to memory of 1644	1680	2024-06-11_89897df860f2e2975c0b5f930345babc_cryptolocker.exe	82
PID 1680 wrote to memory of 1644	1680	2024-06-11_89897df860f2e2975c0b5f930345babc_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-11_89897df860f2e2975c0b5f930345babc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_89897df860f2e2975c0b5f930345babc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1644

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
53KB

MD5
c0432e0724b1364f46a0052ceb3e572a

SHA1
8a80ec948b97d54c6a69e587f6c04491567d4f82

SHA256
07d3ebaae082fc7334867d2c4ebe89fe6a6fac119b645423da123a532a1f8098

SHA512
e6b300a7b8e4d6fe375eca19b1a5843f89a79d27caccce2787d6f418e8803159c9d0b60fe717f6356b82fa9fda070e35f0067f176d476c5221bf77fa072f1d42

Download Submit
memory/1680-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1680-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1680-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1680-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1680-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download