02e7591cb9be1ef8a5cefb29d497eff25034ba3fbd18afd7f7aecb194f3df577

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-08-2024 23:02

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General

Target

8a07e1ba700ac0f7e389bfa482131ca0N.exe
Size

94KB
MD5

8a07e1ba700ac0f7e389bfa482131ca0
SHA1

7791aaaed3ffb803216204efb9ecea63cf090083
SHA256

02e7591cb9be1ef8a5cefb29d497eff25034ba3fbd18afd7f7aecb194f3df577
SHA512

c296f5a96bfdadc74efe573e4315500d95e79280b1c50c99f9b162c4fbc0805361a922495477668d10b5fefdd72ea7cc1492e5f2f14cc8182bf923d05fa61f17
SSDEEP

1536:PGYU/W2/HG6QMauSV3ixJHABLrmhH7i9CO+WHg7zRZICrWaGZh7ub:PfU/WF6QMauSuiWNi9CO+WARJrWNZE

Score

7^/10

defense_evasion discovery persistence

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	8a07e1ba700ac0f7e389bfa482131ca0N.exe

Executes dropped EXE 1 IoCs

pid	Process
2388	wuauclt.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	8a07e1ba700ac0f7e389bfa482131ca0N.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
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 3 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	8a07e1ba700ac0f7e389bfa482131ca0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuauclt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 2388	1664	8a07e1ba700ac0f7e389bfa482131ca0N.exe	84
PID 1664 wrote to memory of 2388	1664	8a07e1ba700ac0f7e389bfa482131ca0N.exe	84
PID 1664 wrote to memory of 2388	1664	8a07e1ba700ac0f7e389bfa482131ca0N.exe	84
PID 1664 wrote to memory of 3284	1664	8a07e1ba700ac0f7e389bfa482131ca0N.exe	96
PID 1664 wrote to memory of 3284	1664	8a07e1ba700ac0f7e389bfa482131ca0N.exe	96
PID 1664 wrote to memory of 3284	1664	8a07e1ba700ac0f7e389bfa482131ca0N.exe	96

C:\Users\Admin\AppData\Local\Temp\8a07e1ba700ac0f7e389bfa482131ca0N.exe
"C:\Users\Admin\AppData\Local\Temp\8a07e1ba700ac0f7e389bfa482131ca0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1664
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2388
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\8a07e1ba700ac0f7e389bfa482131ca0N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

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:\ProgramData\Update\wuauclt.exe

Filesize
94KB

MD5
5c33ec6859e794096ca7c2fdc1606e28

SHA1
fda9e5f7a19d8b90989ef62ec188f8b89501326e

SHA256
734a28bcaabb2d5c88c0ed32ac864b3e6d4962349586d05b6432751d6c5178ee

SHA512
faca0e1836a43fdcd9679270ae09a15db8b6bbfcc8617718a28c0a58e2ea33978bc8d6d2d1bfa1b454d6376d596c7f8cd607c1d7bb4d81a96bdefce1528e9297

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads