317c95d9c75038c97741864f7bf46fd5ff3b2a4b25b67071d3e1def1035eef19

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-09-2024 11:31

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General

Target

2024-09-06_cd855640b1d13dd9cdf34fcfac1ae792_cryptolocker.exe
Size

72KB
MD5

cd855640b1d13dd9cdf34fcfac1ae792
SHA1

01816c356700792b4c2682f75779cda2646077fc
SHA256

317c95d9c75038c97741864f7bf46fd5ff3b2a4b25b67071d3e1def1035eef19
SHA512

230c8075423f13bb76dd009e122108ed157e4c007ff0e0f398b934a800d57a9ad857dcbe02ce04046cff67f6d7c83b557515e18ad9bb965dd17b39f3c4e6f002
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZOnO:DW60sllyWOtEvwDpjwF85l

Score

7^/10

discovery

Malware Config

Signatures

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-09-06_cd855640b1d13dd9cdf34fcfac1ae792_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3988	asih.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-06_cd855640b1d13dd9cdf34fcfac1ae792_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4872 wrote to memory of 3988	4872	2024-09-06_cd855640b1d13dd9cdf34fcfac1ae792_cryptolocker.exe	85
PID 4872 wrote to memory of 3988	4872	2024-09-06_cd855640b1d13dd9cdf34fcfac1ae792_cryptolocker.exe	85
PID 4872 wrote to memory of 3988	4872	2024-09-06_cd855640b1d13dd9cdf34fcfac1ae792_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-06_cd855640b1d13dd9cdf34fcfac1ae792_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-06_cd855640b1d13dd9cdf34fcfac1ae792_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4872
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3988

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
72KB

MD5
d4efe0fae1c165ed68dc2cf1f64fcb7c

SHA1
cd1b4deed5ac7be494ef1ec74b4d7bf31f4c1888

SHA256
104de05ed111c61caee2f944d45464954834818fa78024c26b4fee248139bcf5

SHA512
a4a14d695f63ae2bbea353d9acb31c9a8d6ae49529a7ec41063cd1586be31eaf48c13d18fb7a51a14ca75e988ccc90a48c1ee65a26c99947153d29f130361070

Download Submit
memory/3988-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3988-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3988-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4872-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4872-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4872-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4872-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download
memory/4872-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download