Analysis
- max time kernel
151s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
03/10/2022, 00:32
General
- Target file.exe
- Size 133KB
- Sample221003-avl5kshag2
- SHA256 5e66863875129efa6271da860763ebb8338df07a20c8f7975f038fdb3f1807ca
Malware Config
Extracted
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djvu
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http://winnlinne.com/lancer/get.php
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extension
.adww
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offline_id
z8lhl4oForVEc7gy9Ra8rSqjYMl3xiFRuIW4not1
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payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.com/files/1/build3.exe
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ransomnote
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Extracted
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raccoon
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1a17d9aed7a239440deb75d7a177f406
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http://193.38.55.180/
Extracted
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vidar
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54.7
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517
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https://t.me/trampapanam
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https://nerdculture.de/@yoxhyp
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profile_id
517
Signatures
- Detected Djvu ransomware 11 IoCs
- Detects Smokeloader packer 1 IoCs
- Djvu Ransomware
Ransomware which is a variant of the STOP family.
- Raccoon
Raccoon is an infostealer written in C++ and first seen in 2019.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Downloads MZ/PE file
- Executes dropped EXE 10 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 3 IoCs
- Modifies file permissions 1 TTPs 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses 2FA software files, possible credential harvesting 2 TTPs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of WriteProcessMemory 64 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\256A.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\256A.dll2⤵
- Loads dropped DLL
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C:\Users\Admin\AppData\Local\Temp\26E2.exeC:\Users\Admin\AppData\Local\Temp\26E2.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\26E2.exeC:\Users\Admin\AppData\Local\Temp\26E2.exe2⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\3ae2a733-9f2c-44bd-b222-5fe3ca1c5af6" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\26E2.exe"C:\Users\Admin\AppData\Local\Temp\26E2.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\26E2.exe"C:\Users\Admin\AppData\Local\Temp\26E2.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
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C:\Users\Admin\AppData\Local\92cfc0f0-e58e-4d0b-a9e6-c5459034a566\build2.exe"C:\Users\Admin\AppData\Local\92cfc0f0-e58e-4d0b-a9e6-c5459034a566\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
-
C:\Users\Admin\AppData\Local\92cfc0f0-e58e-4d0b-a9e6-c5459034a566\build2.exe"C:\Users\Admin\AppData\Local\92cfc0f0-e58e-4d0b-a9e6-c5459034a566\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
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-
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C:\Users\Admin\AppData\Local\92cfc0f0-e58e-4d0b-a9e6-c5459034a566\build3.exe"C:\Users\Admin\AppData\Local\92cfc0f0-e58e-4d0b-a9e6-c5459034a566\build3.exe"5⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"6⤵
- Creates scheduled task(s)
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-
-
-
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C:\Users\Admin\AppData\Local\Temp\2A1F.exeC:\Users\Admin\AppData\Local\Temp\2A1F.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\30C7.exeC:\Users\Admin\AppData\Local\Temp\30C7.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Wbem\wmic.exewmic os get Caption2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.execmd /C "wmic path win32_VideoController get name"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic path win32_VideoController get name3⤵
- Suspicious use of AdjustPrivilegeToken
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-
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C:\Windows\SysWOW64\cmd.execmd /C "wmic cpu get name"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic cpu get name3⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"2⤵
- Creates scheduled task(s)
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
mozglue.dll
nss3.dll
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
26E2.exe
build2.exe
build2.exe
build2.exe
build3.exe
build3.exe
256A.dll
256A.dll
26E2.exe
26E2.exe
26E2.exe
26E2.exe
26E2.exe
2A1F.exe
2A1F.exe
30C7.exe
30C7.exe
mstsca.exe
mstsca.exe
memory/260-212-0x000000000062E000-0x0000000000657000-memory.dmp
memory/260-214-0x00000000020B0000-0x00000000020F7000-memory.dmp
memory/1932-196-0x0000000003490000-0x0000000003539000-memory.dmp
memory/1932-195-0x00000000033D0000-0x000000000348E000-memory.dmp
memory/1932-194-0x0000000003290000-0x00000000033C8000-memory.dmp
memory/1932-193-0x0000000003010000-0x000000000314E000-memory.dmp
memory/1932-202-0x0000000003290000-0x00000000033C8000-memory.dmp
memory/2004-209-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2004-213-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2004-215-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2004-211-0x0000000000400000-0x000000000045B000-memory.dmp
memory/2004-219-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/2004-239-0x0000000000400000-0x000000000045B000-memory.dmp
memory/4352-155-0x0000000002201000-0x0000000002293000-memory.dmp
memory/4352-156-0x0000000002370000-0x000000000248B000-memory.dmp
memory/4868-132-0x00000000008BD000-0x00000000008CD000-memory.dmp
memory/4868-135-0x0000000000400000-0x000000000057F000-memory.dmp
memory/4868-133-0x00000000007D0000-0x00000000007D9000-memory.dmp
memory/4868-134-0x0000000000400000-0x000000000057F000-memory.dmp
memory/15920-157-0x0000000001300000-0x0000000001375000-memory.dmp
memory/15920-159-0x0000000001290000-0x00000000012FB000-memory.dmp
memory/15920-162-0x0000000001290000-0x00000000012FB000-memory.dmp
memory/30844-152-0x0000000000400000-0x0000000000537000-memory.dmp
memory/30844-158-0x0000000000400000-0x0000000000537000-memory.dmp
memory/30844-179-0x0000000000400000-0x0000000000537000-memory.dmp
memory/30844-161-0x0000000000400000-0x0000000000537000-memory.dmp
memory/30844-154-0x0000000000400000-0x0000000000537000-memory.dmp
memory/35164-160-0x0000000000F10000-0x0000000000F1C000-memory.dmp
memory/97736-173-0x0000000000400000-0x0000000000414000-memory.dmp
memory/97736-165-0x0000000000400000-0x0000000000414000-memory.dmp
memory/98008-186-0x000000000087D000-0x000000000090F000-memory.dmp
memory/98180-207-0x0000000000400000-0x0000000000537000-memory.dmp
memory/98180-192-0x0000000000400000-0x0000000000537000-memory.dmp
memory/98180-187-0x0000000000400000-0x0000000000537000-memory.dmp
memory/98180-185-0x0000000000400000-0x0000000000537000-memory.dmp