Analysis
- max time kernel
151s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
12/10/2022, 11:31
General
- Target file.exe
- Size 295KB
- Sample221012-nmp36addcm
- SHA256 b6809e7fdb38bc30191a4ceebfe64263ff9cd3ae4a8e64d6e16ecc1021ba217d
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
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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.
- Modifies system certificate store 2 TTPs 3 IoCs
- 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\C865.exeC:\Users\Admin\AppData\Local\Temp\C865.exe1⤵
- Executes dropped EXE
- Modifies system certificate store
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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:\Users\Admin\AppData\Local\Temp\CD59.exeC:\Users\Admin\AppData\Local\Temp\CD59.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\CD59.exeC:\Users\Admin\AppData\Local\Temp\CD59.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\7ba6be98-dcee-4242-ac65-3d2c70a554c2" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\CD59.exe"C:\Users\Admin\AppData\Local\Temp\CD59.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\CD59.exe"C:\Users\Admin\AppData\Local\Temp\CD59.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\61d41625-b567-4fa3-b758-eb8aad459601\build2.exe"C:\Users\Admin\AppData\Local\61d41625-b567-4fa3-b758-eb8aad459601\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\61d41625-b567-4fa3-b758-eb8aad459601\build2.exe"C:\Users\Admin\AppData\Local\61d41625-b567-4fa3-b758-eb8aad459601\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\61d41625-b567-4fa3-b758-eb8aad459601\build3.exe"C:\Users\Admin\AppData\Local\61d41625-b567-4fa3-b758-eb8aad459601\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\D096.exeC:\Users\Admin\AppData\Local\Temp\D096.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\D2E9.exeC:\Users\Admin\AppData\Local\Temp\D2E9.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4620 -s 4482⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\D710.exeC:\Users\Admin\AppData\Local\Temp\D710.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\DB96.exeC:\Users\Admin\AppData\Local\Temp\DB96.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1872 -s 4482⤵
- Program crash
-
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C:\Users\Admin\AppData\Local\Temp\E338.exeC:\Users\Admin\AppData\Local\Temp\E338.exe1⤵
- Executes dropped EXE
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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\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4620 -ip 46201⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1872 -ip 18721⤵
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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
CD59.exe
C865.exe
C865.exe
CD59.exe
CD59.exe
CD59.exe
CD59.exe
CD59.exe
D096.exe
D096.exe
D2E9.exe
D2E9.exe
D710.exe
D710.exe
DB96.exe
DB96.exe
E338.exe
E338.exe
mstsca.exe
mstsca.exe
memory/792-262-0x0000000000A90000-0x0000000000A96000-memory.dmp
memory/792-263-0x0000000000A80000-0x0000000000A8C000-memory.dmp
memory/792-282-0x0000000000A90000-0x0000000000A96000-memory.dmp
memory/848-265-0x0000000000C00000-0x0000000000C22000-memory.dmp
memory/848-266-0x00000000009C0000-0x00000000009E7000-memory.dmp
memory/848-283-0x0000000000C00000-0x0000000000C22000-memory.dmp
memory/932-211-0x00000000007ED000-0x0000000000819000-memory.dmp
memory/932-212-0x00000000021F0000-0x000000000223F000-memory.dmp
memory/1192-272-0x0000000000CA0000-0x0000000000CAB000-memory.dmp
memory/1192-271-0x0000000000CB0000-0x0000000000CB6000-memory.dmp
memory/1192-285-0x0000000000CB0000-0x0000000000CB6000-memory.dmp
memory/1636-197-0x00000000020C1000-0x0000000002152000-memory.dmp
memory/1872-186-0x00000000004FE000-0x000000000050F000-memory.dmp
memory/1872-187-0x0000000000400000-0x000000000044F000-memory.dmp
memory/2132-260-0x0000000000350000-0x0000000000359000-memory.dmp
memory/2132-259-0x0000000000360000-0x0000000000365000-memory.dmp
memory/2132-281-0x0000000000360000-0x0000000000365000-memory.dmp
memory/3032-208-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3032-214-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3032-252-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3032-213-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3032-219-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3268-171-0x0000000140000000-0x000000014060F000-memory.dmp
memory/3432-163-0x0000000002280000-0x000000000239B000-memory.dmp
memory/3432-162-0x000000000207C000-0x000000000210D000-memory.dmp
memory/3496-274-0x0000000000360000-0x0000000000367000-memory.dmp
memory/3496-275-0x0000000000350000-0x000000000035D000-memory.dmp
memory/3496-286-0x0000000000360000-0x0000000000367000-memory.dmp
memory/3684-268-0x0000000001060000-0x0000000001065000-memory.dmp
memory/3684-269-0x0000000001050000-0x0000000001059000-memory.dmp
memory/3684-284-0x0000000001060000-0x0000000001065000-memory.dmp
memory/3980-179-0x0000000000900000-0x000000000090C000-memory.dmp
memory/4132-192-0x0000000000400000-0x000000000044F000-memory.dmp
memory/4132-172-0x00000000006A0000-0x00000000006A9000-memory.dmp
memory/4132-174-0x0000000000400000-0x000000000044F000-memory.dmp
memory/4132-170-0x00000000007FE000-0x000000000080F000-memory.dmp
memory/4272-180-0x0000000000D10000-0x0000000000D85000-memory.dmp
memory/4272-183-0x0000000000CA0000-0x0000000000D0B000-memory.dmp
memory/4272-176-0x0000000000CA0000-0x0000000000D0B000-memory.dmp
memory/4352-287-0x0000000000430000-0x0000000000438000-memory.dmp
memory/4352-278-0x0000000000420000-0x000000000042B000-memory.dmp
memory/4352-277-0x0000000000430000-0x0000000000438000-memory.dmp
memory/4380-203-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4380-239-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4380-196-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4380-198-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4528-161-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4528-164-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4528-159-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4528-191-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4528-165-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4600-250-0x0000000000400000-0x00000000009A1000-memory.dmp
memory/4600-240-0x00000000032E0000-0x00000000037FF000-memory.dmp
memory/4600-241-0x0000000000400000-0x00000000009A1000-memory.dmp
memory/4620-182-0x0000000000400000-0x0000000000450000-memory.dmp
memory/4620-181-0x0000000000480000-0x0000000000489000-memory.dmp
memory/4620-185-0x000000000058E000-0x000000000059F000-memory.dmp
memory/4752-135-0x0000000000400000-0x000000000044F000-memory.dmp
memory/4752-132-0x000000000064E000-0x000000000065F000-memory.dmp
memory/4752-133-0x00000000004C0000-0x00000000004C9000-memory.dmp
memory/4752-134-0x0000000000400000-0x000000000044F000-memory.dmp
memory/4960-257-0x0000000000880000-0x000000000088F000-memory.dmp
memory/4960-280-0x0000000000890000-0x0000000000899000-memory.dmp
memory/4960-256-0x0000000000890000-0x0000000000899000-memory.dmp
memory/5068-151-0x0000000140000000-0x000000014060F000-memory.dmp
memory/5096-279-0x0000000000440000-0x0000000000447000-memory.dmp
memory/5096-253-0x0000000000440000-0x0000000000447000-memory.dmp
memory/5096-254-0x0000000000430000-0x000000000043B000-memory.dmp