Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
18/10/2022, 03:31
General
- Target file.exe
- Size 218KB
- Sample221018-d22qdsece8
- SHA256 0aad689d23a3af342eee7f8f25011097adf490a309cdf49fad72201bfe1de3e3
Malware Config
Extracted
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djvu
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http://winnlinne.com/lancer/get.php
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extension
.tury
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offline_id
Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1
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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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vidar
-
55
-
517
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https://t.me/truewallets
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https://mas.to/@zara99
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http://116.203.10.3:80
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profile_id
517
Signatures
- Detected Djvu ransomware 10 IoCs
- Detects Smokeloader packer 3 IoCs
- Djvu Ransomware
Ransomware which is a variant of the STOP family.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Downloads MZ/PE file
- Executes dropped EXE 13 IoCs
- VMProtect packed file 6 IoCs
Detects executables packed with VMProtect commercial packer.
- Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 2 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 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 2 IoCs
- Checks SCSI registry key(s) 3 TTPs 6 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.
- Delays execution with timeout.exe 1 IoCs
- Kills process with taskkill 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 24 IoCs
- Suspicious use of AdjustPrivilegeToken 17 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:\Users\Admin\AppData\Local\Temp\CCBB.exeC:\Users\Admin\AppData\Local\Temp\CCBB.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\CCBB.exeC:\Users\Admin\AppData\Local\Temp\CCBB.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\c878c955-17e8-48e5-b40f-195036cd507f" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\CCBB.exe"C:\Users\Admin\AppData\Local\Temp\CCBB.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\CCBB.exe"C:\Users\Admin\AppData\Local\Temp\CCBB.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\193950f7-7b3a-42b5-a178-cbf209f89dba\build2.exe"C:\Users\Admin\AppData\Local\193950f7-7b3a-42b5-a178-cbf209f89dba\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\193950f7-7b3a-42b5-a178-cbf209f89dba\build2.exe"C:\Users\Admin\AppData\Local\193950f7-7b3a-42b5-a178-cbf209f89dba\build2.exe"6⤵
- Executes dropped EXE
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" C/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\193950f7-7b3a-42b5-a178-cbf209f89dba\build2.exe" & del C:\PrograData\*.dll & exit7⤵
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C:\Windows\SysWOW64\taskkill.exetaskkill /im build2.exe /f8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
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-
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C:\Users\Admin\AppData\Local\193950f7-7b3a-42b5-a178-cbf209f89dba\build3.exe"C:\Users\Admin\AppData\Local\193950f7-7b3a-42b5-a178-cbf209f89dba\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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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\D017.exeC:\Users\Admin\AppData\Local\Temp\D017.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\D335.exeC:\Users\Admin\AppData\Local\Temp\D335.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4872 -s 3402⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\D4DC.exeC:\Users\Admin\AppData\Local\Temp\D4DC.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2264 -s 3402⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\D838.exeC:\Users\Admin\AppData\Local\Temp\D838.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4872 -ip 48721⤵
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C:\Users\Admin\AppData\Local\Temp\DDC7.exeC:\Users\Admin\AppData\Local\Temp\DDC7.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2264 -ip 22641⤵
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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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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
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
build2.exe
build2.exe
build2.exe
build3.exe
build3.exe
CCBB.exe
CCBB.exe
CCBB.exe
CCBB.exe
CCBB.exe
D017.exe
D017.exe
D335.exe
D335.exe
D4DC.exe
D4DC.exe
D838.exe
D838.exe
DDC7.exe
DDC7.exe
CCBB.exe
mstsca.exe
mstsca.exe
memory/692-262-0x0000000000CD0000-0x0000000000CD6000-memory.dmp
memory/692-263-0x0000000000CC0000-0x0000000000CCB000-memory.dmp
memory/692-275-0x0000000000CD0000-0x0000000000CD6000-memory.dmp
memory/780-245-0x0000000000CC0000-0x0000000000CCB000-memory.dmp
memory/780-270-0x0000000000CD0000-0x0000000000CD7000-memory.dmp
memory/780-244-0x0000000000CD0000-0x0000000000CD7000-memory.dmp
memory/1084-132-0x0000000000833000-0x0000000000844000-memory.dmp
memory/1084-135-0x0000000000400000-0x0000000000595000-memory.dmp
memory/1084-134-0x0000000000400000-0x0000000000595000-memory.dmp
memory/1084-133-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/1388-159-0x0000000000893000-0x00000000008A3000-memory.dmp
memory/1388-160-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/1388-161-0x0000000000400000-0x0000000000594000-memory.dmp
memory/1388-185-0x0000000000400000-0x0000000000594000-memory.dmp
memory/1936-206-0x000000000091D000-0x0000000000949000-memory.dmp
memory/1936-208-0x0000000000890000-0x00000000008DF000-memory.dmp
memory/2148-183-0x0000000000F70000-0x0000000000F7C000-memory.dmp
memory/2264-170-0x00000000007F3000-0x0000000000804000-memory.dmp
memory/2264-174-0x0000000000400000-0x0000000000594000-memory.dmp
memory/2500-176-0x0000000140000000-0x000000014060E000-memory.dmp
memory/2536-273-0x0000000000C00000-0x0000000000C22000-memory.dmp
memory/2536-256-0x0000000000C00000-0x0000000000C22000-memory.dmp
memory/2536-257-0x00000000009C0000-0x00000000009E7000-memory.dmp
memory/2596-162-0x0000000140000000-0x000000014060E000-memory.dmp
memory/3088-260-0x0000000001050000-0x0000000001059000-memory.dmp
memory/3088-259-0x0000000001060000-0x0000000001065000-memory.dmp
memory/3088-274-0x0000000001060000-0x0000000001065000-memory.dmp
memory/3748-194-0x00000000008B3000-0x0000000000945000-memory.dmp
memory/3832-277-0x0000000000CD0000-0x0000000000CD8000-memory.dmp
memory/3832-268-0x0000000000CD0000-0x0000000000CD8000-memory.dmp
memory/3832-269-0x0000000000CC0000-0x0000000000CCB000-memory.dmp
memory/4080-215-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/4080-238-0x0000000000400000-0x0000000000463000-memory.dmp
memory/4080-204-0x0000000000400000-0x0000000000463000-memory.dmp
memory/4080-209-0x0000000000400000-0x0000000000463000-memory.dmp
memory/4080-210-0x0000000000400000-0x0000000000463000-memory.dmp
memory/4120-143-0x0000000002250000-0x000000000236B000-memory.dmp
memory/4120-142-0x000000000075C000-0x00000000007EE000-memory.dmp
memory/4420-193-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4420-192-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4420-235-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4420-195-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4512-254-0x00000000007E0000-0x00000000007EC000-memory.dmp
memory/4512-253-0x00000000007F0000-0x00000000007F6000-memory.dmp
memory/4512-272-0x00000000007F0000-0x00000000007F6000-memory.dmp
memory/4732-265-0x00000000004D0000-0x00000000004D7000-memory.dmp
memory/4732-266-0x00000000004C0000-0x00000000004CD000-memory.dmp
memory/4732-276-0x00000000004D0000-0x00000000004D7000-memory.dmp
memory/4736-181-0x0000000000490000-0x0000000000505000-memory.dmp
memory/4736-182-0x0000000000420000-0x000000000048B000-memory.dmp
memory/4772-247-0x0000000000AF0000-0x0000000000AF9000-memory.dmp
memory/4772-248-0x0000000000AE0000-0x0000000000AEF000-memory.dmp
memory/4772-271-0x0000000000AF0000-0x0000000000AF9000-memory.dmp
memory/4872-164-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/4872-163-0x0000000000883000-0x0000000000894000-memory.dmp
memory/4872-166-0x0000000000400000-0x0000000000594000-memory.dmp
memory/4904-188-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4904-155-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4904-148-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4904-147-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4904-145-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4928-251-0x0000000000CC0000-0x0000000000CC9000-memory.dmp
memory/4928-250-0x0000000000CD0000-0x0000000000CD5000-memory.dmp