Malware Analysis Report

2025-01-02 14:22

Sample ID 220421-x47tzaccgj
Target inf.inf
SHA256 fd03dd58aa7cb5236f4df8cde3fb07af304c6f402cd48b86eefcecb8e7b86883
Tags
troldesh discovery persistence ransomware spyware stealer trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

fd03dd58aa7cb5236f4df8cde3fb07af304c6f402cd48b86eefcecb8e7b86883

Threat Level: Known bad

The file inf.inf was found to be: Known bad.

Malicious Activity Summary

troldesh discovery persistence ransomware spyware stealer trojan upx

Troldesh, Shade, Encoder.858

Deletes shadow copies

UPX packed file

Modifies extensions of user files

Reads user/profile data of web browsers

Adds Run key to start application

Checks installed software on the system

Drops file in Program Files directory

Enumerates physical storage devices

Program crash

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Interacts with shadow copies

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-04-21 19:25

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-04-21 19:25

Reported

2022-04-21 19:30

Platform

win7-20220414-en

Max time kernel

120s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\inf.exe"

Signatures

Troldesh, Shade, Encoder.858

ransomware trojan troldesh

Deletes shadow copies

ransomware

Modifies extensions of user files

ransomware
Description Indicator Process Target
File opened for modification C:\Users\Admin\Pictures\BlockSync.tiff C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Users\Admin\Pictures\AddGroup.tiff C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Users\Admin\Pictures\RestoreRevoke.tiff C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Reads user/profile data of web browsers

spyware stealer

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\"" C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Checks installed software on the system

discovery

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\RedistList\FrameworkList.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\mainscroll.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\ipsen.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\32.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\p2\org.eclipse.equinox.p2.engine\profileRegistry\JMC.profile\1423861240389.profile.gz C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Pets\Scenes_LOOP_BG_PAL.wmv C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\de-DE\js\RSSFeeds.js C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\logo.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-util-lookup.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-explorer.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\46.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\images\graph_down.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jre7\lib\images\cursors\win32_MoveNoDrop32x32.gif C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsNotesBackground_PAL.wmv C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BlackRectangle.bmp C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Clock.Gadget\de-DE\css\settings.css C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\en-US\js\calendar.js C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\config\Modules\org-netbeans-modules-profiler-snaptracer.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Performance\Title_Page.wmv C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\logo.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\MediaCenter.Gadget\it-IT\gadget.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\images\base-undocked-3.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-bg_glass_65_ffffff_1x400.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\feedbck2.gif C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\whitevignette1047.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\es-ES\js\library.js C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\es-ES\js\init.js C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\shadowonlyframe_buttongraphic.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\16to9Squareframe_SelectionSubpicture.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\BackupResume.mp3 C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\12.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\4.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\images\base-undocked-4.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\en-US\js\localizedStrings.js C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Mozilla Firefox\browser\blocklist.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-application-views.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-openide-dialogs.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\bookicon.gif C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\en-US\js\init.js C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\RSSFeeds.Gadget\en-US\gadget.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\VideoLAN\VLC\lua\http\css\ui-lightness\images\ui-icons_ffd27a_256x240.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\fsdefinitions\main\ko-kr.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Media Player\Network Sharing\wmpnss_color48.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\SportsMainToScenesBackground_PAL.wmv C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\19.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\update_tracking\org-netbeans-core-multiview.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\30.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\ja-JP\js\library.js C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\Currency.Gadget\fr-FR\css\currency.css C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\dropins\README.TXT C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Common Files\Microsoft Shared\ink\en-US\split.avi C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\visualvm\config\Modules\com-sun-tools-visualvm-sampler.xml C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\VERSION.txt C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\Images\glow.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Sports\CircleSubpicture.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\BabyGirl\Bear_Formatted_MATTE2_PAL.wmv C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Java\jdk1.7.0_80\include\jvmticmlr.h C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Stacking\1047x576black.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\SpecialOccasion\SpecialNavigationLeft_SelectionSubpicture.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Common Files\System\ado\adojavas.inc C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\7-Zip\Lang\ja.txt C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Windows Sidebar\Gadgets\CPU.Gadget\images\back.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\VisualElements\Logo.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
File opened for modification C:\Program Files\DVD Maker\Shared\DvdStyles\Travel\passport.png C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\system32\WerFault.exe

Interacts with shadow copies

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\vssadmin.exe N/A
N/A N/A C:\Windows\system32\vssadmin.exe N/A
N/A N/A C:\Windows\system32\vssadmin.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1964 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 1164 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 428 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 428 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 428 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 428 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\system32\vssadmin.exe
PID 1964 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\SysWOW64\cmd.exe
PID 1964 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\SysWOW64\cmd.exe
PID 1964 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\SysWOW64\cmd.exe
PID 1964 wrote to memory of 1040 N/A C:\Users\Admin\AppData\Local\Temp\inf.exe C:\Windows\SysWOW64\cmd.exe
PID 1040 wrote to memory of 1224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1040 wrote to memory of 1224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1040 wrote to memory of 1224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1040 wrote to memory of 1224 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com

Processes

C:\Users\Admin\AppData\Local\Temp\inf.exe

"C:\Users\Admin\AppData\Local\Temp\inf.exe"

C:\Windows\system32\vssadmin.exe

C:\Windows\system32\vssadmin.exe List Shadows

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssadmin.exe

C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet

C:\Windows\system32\vssadmin.exe

C:\Windows\system32\vssadmin.exe List Shadows

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe

C:\Windows\SysWOW64\chcp.com

chcp

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1304 -s 652

Network

Country Destination Domain Proto
N/A 127.0.0.1:49165 tcp
NL 194.109.206.212:443 tcp
DE 193.23.244.244:443 tcp
AT 86.59.21.38:443 tcp
FR 163.172.169.253:9001 tcp
NL 212.83.167.220:443 tcp
CZ 185.149.207.70:9001 tcp
N/A 127.0.0.1:59469 tcp
N/A 127.0.0.1:59469 tcp
N/A 127.0.0.1:59469 tcp
N/A 127.0.0.1:59469 tcp
N/A 127.0.0.1:59469 tcp
N/A 127.0.0.1:59469 tcp

Files

memory/1964-54-0x0000000075401000-0x0000000075403000-memory.dmp

memory/1964-55-0x0000000000400000-0x0000000000608000-memory.dmp

memory/1964-56-0x0000000000610000-0x00000000006E5000-memory.dmp

memory/1964-57-0x0000000000400000-0x0000000000608000-memory.dmp

memory/1040-58-0x0000000000000000-mapping.dmp

memory/1164-59-0x0000000000000000-mapping.dmp

memory/428-60-0x0000000000000000-mapping.dmp

memory/1040-61-0x0000000000000000-mapping.dmp

memory/1224-62-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-04-21 19:25

Reported

2022-04-21 19:32

Platform

win10v2004-20220414-en

Max time kernel

172s

Max time network

196s

Command Line

"C:\Users\Admin\AppData\Local\Temp\inf.exe"

Signatures

Troldesh, Shade, Encoder.858

ransomware trojan troldesh

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Subsystem = "\"C:\\ProgramData\\Windows\\csrss.exe\"" C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\inf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\inf.exe

"C:\Users\Admin\AppData\Local\Temp\inf.exe"

Network

Country Destination Domain Proto
US 20.44.10.123:443 tcp
N/A 127.0.0.1:49725 tcp
US 208.83.223.34:80 tcp
NL 8.248.7.254:80 tcp
US 128.31.0.39:9101 tcp
DE 131.188.40.189:443 tcp

Files

memory/4940-130-0x0000000002370000-0x0000000002445000-memory.dmp

memory/4940-131-0x0000000000400000-0x0000000000608000-memory.dmp

memory/4940-132-0x0000000000400000-0x0000000000608000-memory.dmp