83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-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

Executes dropped EXE 1 IoCs

pid	Process
2796	winlgon.exe

Loads dropped DLL 2 IoCs

pid	Process
2540	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe
2540	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.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-1-5-21-2703099537-420551529-3771253338-1000\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
2540	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe
2796	winlgon.exe
2796	winlgon.exe
2796	winlgon.exe
2796	winlgon.exe
2796	winlgon.exe
2796	winlgon.exe
2796	winlgon.exe
2796	winlgon.exe
2796	winlgon.exe
2796	winlgon.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2796	2540	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe	29
PID 2540 wrote to memory of 2796	2540	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe	29
PID 2540 wrote to memory of 2796	2540	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe	29
PID 2540 wrote to memory of 2796	2540	83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe	29

C:\Users\Admin\AppData\Local\Temp\83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe
"C:\Users\Admin\AppData\Local\Temp\83dfdef1999c80ec447f6a3acfb8ab64333cf2c9d012a9d7b37d90eca07d3bd5.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2540
- 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:2796

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

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

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

Filesize
78KB

MD5
782f84cffc3b6aec816abeda6b978225

SHA1
32f68165dd2e11ff2b3a8c541ddfce95a028f516

SHA256
262f387674899645be5f3522436350ec013a79e5996a7cce538f09ef57341d75

SHA512
e3e214bbb46695f332d548499d21ce971af0725c2fe9d99125ed512456069567cbb45615a3843b08ab6509c129237dcbf51e1b6aa416a642f4acd24c52b45f48

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads