Analysis
- max time kernel
150s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
12/10/2022, 12:32
General
- Target file.exe
- Size 294KB
- Sample221012-pql2cadebl
- SHA256 c21d73834b3690403f7dc0ae7a0bb030f947212052596d4b9d878a97ecd60ea1
Malware Config
Extracted
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djvu
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http://winnlinne.com/lancer/get.php
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extension
.powz
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offline_id
tHl9RvVtHhFQisMomKMdXzz2soNLhV0cuok85it1
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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
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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 14 IoCs
- VMProtect packed file 6 IoCs
Detects executables packed with VMProtect commercial packer.
- Checks computer location settings 2 TTPs 2 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.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 24 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:\Users\Admin\AppData\Local\Temp\C27B.exeC:\Users\Admin\AppData\Local\Temp\C27B.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\C27B.exeC:\Users\Admin\AppData\Local\Temp\C27B.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\5df6571a-17b7-42c3-9869-736c6b9cdd29" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\C27B.exe"C:\Users\Admin\AppData\Local\Temp\C27B.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\C27B.exe"C:\Users\Admin\AppData\Local\Temp\C27B.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
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C:\Users\Admin\AppData\Local\ddd7aa4b-8a0a-4749-a598-805c0c30e3a3\build2.exe"C:\Users\Admin\AppData\Local\ddd7aa4b-8a0a-4749-a598-805c0c30e3a3\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
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C:\Users\Admin\AppData\Local\ddd7aa4b-8a0a-4749-a598-805c0c30e3a3\build2.exe"C:\Users\Admin\AppData\Local\ddd7aa4b-8a0a-4749-a598-805c0c30e3a3\build2.exe"6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
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C:\Users\Admin\AppData\Local\ddd7aa4b-8a0a-4749-a598-805c0c30e3a3\build3.exe"C:\Users\Admin\AppData\Local\ddd7aa4b-8a0a-4749-a598-805c0c30e3a3\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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C:\Users\Admin\AppData\Local\Temp\C4FC.exeC:\Users\Admin\AppData\Local\Temp\C4FC.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\C730.exeC:\Users\Admin\AppData\Local\Temp\C730.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 4482⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\CA9C.exeC:\Users\Admin\AppData\Local\Temp\CA9C.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\CE37.exeC:\Users\Admin\AppData\Local\Temp\CE37.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 4482⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\D423.exeC:\Users\Admin\AppData\Local\Temp\D423.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3624 -ip 36241⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 5052 -ip 50521⤵
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C:\Users\Admin\AppData\Local\Temp\E26D.exeC:\Users\Admin\AppData\Local\Temp\E26D.exe1⤵
- Executes dropped EXE
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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⤵
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic path win32_VideoController get name3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.execmd /C "wmic cpu get name"2⤵
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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:\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⤵
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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
572BF21E454637C9F000BE1AF9B1E1A9
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
572BF21E454637C9F000BE1AF9B1E1A9
C27B.exe
C27B.exe
C27B.exe
C27B.exe
C27B.exe
C27B.exe
C4FC.exe
C4FC.exe
C730.exe
C730.exe
CA9C.exe
CA9C.exe
CE37.exe
CE37.exe
D423.exe
D423.exe
E26D.exe
E26D.exe
build2.exe
build2.exe
build2.exe
build3.exe
build3.exe
mstsca.exe
mstsca.exe
memory/480-187-0x00000000001F0000-0x00000000001FC000-memory.dmp
memory/808-188-0x0000000000C50000-0x0000000000CBB000-memory.dmp
memory/808-184-0x0000000000C50000-0x0000000000CBB000-memory.dmp
memory/808-183-0x0000000000CC0000-0x0000000000D35000-memory.dmp
memory/1252-134-0x0000000000400000-0x000000000044E000-memory.dmp
memory/1252-135-0x0000000000400000-0x000000000044E000-memory.dmp
memory/1252-133-0x00000000004C0000-0x00000000004C9000-memory.dmp
memory/1252-132-0x000000000071E000-0x000000000072F000-memory.dmp
memory/1604-199-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1604-197-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1604-200-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1604-231-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1672-236-0x0000000000730000-0x0000000000737000-memory.dmp
memory/1672-237-0x0000000000720000-0x000000000072D000-memory.dmp
memory/1672-282-0x0000000000730000-0x0000000000737000-memory.dmp
memory/1944-280-0x0000000000FF0000-0x0000000000FF5000-memory.dmp
memory/1944-228-0x0000000000FF0000-0x0000000000FF5000-memory.dmp
memory/1944-229-0x0000000000FE0000-0x0000000000FE9000-memory.dmp
memory/2192-161-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2192-157-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2192-193-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2192-167-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2192-159-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2276-224-0x0000000000C80000-0x0000000000CA2000-memory.dmp
memory/2276-279-0x0000000000C80000-0x0000000000CA2000-memory.dmp
memory/2276-225-0x0000000000C50000-0x0000000000C77000-memory.dmp
memory/3052-233-0x0000000001240000-0x000000000124B000-memory.dmp
memory/3052-232-0x0000000001250000-0x0000000001256000-memory.dmp
memory/3052-281-0x0000000001250000-0x0000000001256000-memory.dmp
memory/3556-198-0x0000000001FFB000-0x000000000208C000-memory.dmp
memory/3616-242-0x0000000000340000-0x0000000000348000-memory.dmp
memory/3616-283-0x0000000000340000-0x0000000000348000-memory.dmp
memory/3616-243-0x0000000000330000-0x000000000033B000-memory.dmp
memory/3624-174-0x00000000007BE000-0x00000000007CF000-memory.dmp
memory/3624-176-0x0000000000400000-0x0000000000450000-memory.dmp
memory/3624-175-0x00000000006A0000-0x00000000006A9000-memory.dmp
memory/3628-254-0x00000000021D0000-0x000000000221F000-memory.dmp
memory/3628-253-0x000000000070E000-0x000000000073A000-memory.dmp
memory/3936-148-0x0000000140000000-0x000000014060F000-memory.dmp
memory/3964-163-0x0000000002069000-0x00000000020FA000-memory.dmp
memory/3964-258-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3964-255-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3964-160-0x0000000002200000-0x000000000231B000-memory.dmp
memory/3964-252-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3964-284-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3964-249-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3964-155-0x0000000002069000-0x00000000020FA000-memory.dmp
memory/4132-213-0x0000000001040000-0x0000000001049000-memory.dmp
memory/4132-212-0x0000000001050000-0x0000000001055000-memory.dmp
memory/4132-257-0x0000000001050000-0x0000000001055000-memory.dmp
memory/4520-170-0x0000000140000000-0x000000014060F000-memory.dmp
memory/4588-209-0x0000000000600000-0x0000000000609000-memory.dmp
memory/4588-210-0x00000000003F0000-0x00000000003FF000-memory.dmp
memory/4720-234-0x0000000000400000-0x00000000009A1000-memory.dmp
memory/4720-216-0x0000000000400000-0x00000000009A1000-memory.dmp
memory/4720-215-0x0000000003100000-0x000000000361F000-memory.dmp
memory/4816-218-0x0000000001210000-0x000000000121C000-memory.dmp
memory/4816-217-0x0000000001220000-0x0000000001226000-memory.dmp
memory/4816-270-0x0000000001220000-0x0000000001226000-memory.dmp
memory/5052-177-0x0000000000400000-0x000000000044F000-memory.dmp
memory/5052-182-0x000000000063E000-0x000000000064F000-memory.dmp
memory/5064-206-0x0000000000E40000-0x0000000000E47000-memory.dmp
memory/5064-256-0x0000000000E40000-0x0000000000E47000-memory.dmp
memory/5064-207-0x0000000000E30000-0x0000000000E3B000-memory.dmp
memory/5104-169-0x0000000000400000-0x000000000044F000-memory.dmp
memory/5104-166-0x00000000005AE000-0x00000000005BF000-memory.dmp
memory/5104-186-0x0000000000400000-0x000000000044F000-memory.dmp
memory/5104-168-0x00000000004C0000-0x00000000004C9000-memory.dmp