70e12f8792861dda4fc5ed60935bd16d939da259811f5eee2cbcb0503f94d7bb

Analysis

max time kernel
101s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/08/2024, 15:42

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General

Target

a8cff6a2ac7e048fbba9d91e346e7de0N.exe
Size

60KB
MD5

a8cff6a2ac7e048fbba9d91e346e7de0
SHA1

abff4df76938c8afbe03b1332085eaf5741e8501
SHA256

70e12f8792861dda4fc5ed60935bd16d939da259811f5eee2cbcb0503f94d7bb
SHA512

6b37f5a14a0cc0e3b1a5467922c79e4239b67b95d9f71e8ab37eb3b04cf2646117971d28f97151c608386e3c0db12a0d18f2e20de9c543cdcfbfc7d4f1790bb3
SSDEEP

384:asjPGY2HXgrkEYYhQ98E8I1XAV/QcaYpATUgch1A9NB/erxlF8fmuMhf+W:aePG5H8XhKD8ISZQjkgs1lxlFemx

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	a8cff6a2ac7e048fbba9d91e346e7de0N.exe

Executes dropped EXE 1 IoCs

pid	Process
544	winupdate.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	a8cff6a2ac7e048fbba9d91e346e7de0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 544	1044	a8cff6a2ac7e048fbba9d91e346e7de0N.exe	85
PID 1044 wrote to memory of 544	1044	a8cff6a2ac7e048fbba9d91e346e7de0N.exe	85
PID 1044 wrote to memory of 544	1044	a8cff6a2ac7e048fbba9d91e346e7de0N.exe	85

C:\Users\Admin\AppData\Local\Temp\a8cff6a2ac7e048fbba9d91e346e7de0N.exe
"C:\Users\Admin\AppData\Local\Temp\a8cff6a2ac7e048fbba9d91e346e7de0N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Users\Admin\AppData\Local\Temp\winupdate.exe
  "C:\Users\Admin\AppData\Local\Temp\winupdate.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:544

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

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Downloads

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

Filesize
60KB

MD5
71bdc7ac288ef7da948f3bf99e6a7db4

SHA1
39f829caece755e48e9e23240dc9729d8a108394

SHA256
c37398d4e9ff3b49a044ad12d735686c63fcfb4b03282b5899d23cb3f2871d7f

SHA512
8f9e9b0568a3357d75504fe27ab97ddf5ac87ce65491600dba7c1b0fbeeca30279864887d0a9146a12300c1502ee61ad4625e16547fe237db99520a09d388652

Download Submit
memory/544-11-0x0000000000500000-0x0000000000512000-memory.dmp

Filesize
72KB

Download
memory/1044-0-0x0000000000500000-0x0000000000512000-memory.dmp

Filesize
72KB

Download
memory/1044-1-0x0000000000501000-0x0000000000502000-memory.dmp

Filesize
4KB

Download
memory/1044-10-0x0000000000500000-0x0000000000512000-memory.dmp

Filesize
72KB

Download