83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5

Analysis

max time kernel
50s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/11/2024, 04:40

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General

Target

83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe
Size

78KB
MD5

0c3836e824cb3ad3d48f56318cbfde84
SHA1

70fbdd54c95b26bf6817d65f5dfc395f25ca0d43
SHA256

83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5
SHA512

4a8ae1e72e22fdbf1c7ff02789e36ae90448b76cb3546a6e978aefbd2d6b1366136bd268e75d8d134efae0431555fd36f3b51d9c455f7e1bb0fb21976a74c466
SSDEEP

1536:0eNbbLsha0pLXtdNWm2uNYhm1cSMehm1s/XZIG:0eNwDpXt7CLSMehm2/XZh

Score

7^/10

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe

Executes dropped EXE 1 IoCs

pid	Process
1396	winlgon.exe

Adds Run key to start application 2 TTPs 2 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\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.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	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlgon.exe

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\http:\www.majalisna.com\gallery\41\41_17618_1199952884.jpg	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe

Suspicious use of SetWindowsHookEx 11 IoCs

pid	Process
4572	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe
1396	winlgon.exe
1396	winlgon.exe
1396	winlgon.exe
1396	winlgon.exe
1396	winlgon.exe
1396	winlgon.exe
1396	winlgon.exe
1396	winlgon.exe
1396	winlgon.exe
1396	winlgon.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 1396	4572	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe	83
PID 4572 wrote to memory of 1396	4572	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe	83
PID 4572 wrote to memory of 1396	4572	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe	83

C:\Users\Admin\AppData\Local\Temp\83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe
"C:\Users\Admin\AppData\Local\Temp\83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Users\Admin\appdata\local\temp\winlgon.exe
  "C:\Users\Admin\appdata\local\temp\winlgon.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1396

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

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:\Users\Admin\AppData\Local\Temp\winlgon.exe

Filesize
78KB

MD5
d189aa571b9c6b34130a3d6f5c2b23a5

SHA1
62916c3bedc7222956a6b50c1675b1e13b263473

SHA256
c8f2dc6bdad5c64f46ea2fdee0a12be19848ab4fcda994183bebad074741609a

SHA512
9d254f25bd3f2942f7d8224045822f9e57e27807cffcb87f794749dd228235b1921410f4eb18b7bd9dc19f77dd46e3a342acd2e68cbc4a0a6b06f3e654ff0d44

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads