Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
19/10/2022, 08:32
General
- Target file.exe
- Size 229KB
- Sample221019-kfdj1afba6
- SHA256 418e34b22f49ad911cf6ba887f85b3b5b6f0782a9d8ca9b9c4dea74dfbe0ec50
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
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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
Extracted
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danabot
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192.236.233.188:443
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192.119.70.159:443
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23.106.124.171:443
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213.227.155.103:443
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embedded_hash
56951C922035D696BFCE443750496462
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type
loader
Signatures
- Danabot
Danabot is a modular banking Trojan that has been linked with other malware.
- 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.
- Blocklisted process makes network request 2 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 12 IoCs
- Checks computer location settings 2 TTPs 3 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.
- Program crash 6 IoCs
- Checks SCSI registry key(s) 3 TTPs 42 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 44 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
- Modifies Internet Explorer settings 1 TTPs 4 IoCs
- Modifies registry class 19 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 52 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 2 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\D798.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\D798.dll2⤵
- Loads dropped DLL
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C:\Users\Admin\AppData\Local\Temp\D8C2.exeC:\Users\Admin\AppData\Local\Temp\D8C2.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\D8C2.exeC:\Users\Admin\AppData\Local\Temp\D8C2.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\74b22bb7-d22d-4a6d-90cc-50d69d12714c" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\D8C2.exe"C:\Users\Admin\AppData\Local\Temp\D8C2.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\D8C2.exe"C:\Users\Admin\AppData\Local\Temp\D8C2.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\f13c8673-1ef6-4b13-8077-bccc89fa57a5\build2.exe"C:\Users\Admin\AppData\Local\f13c8673-1ef6-4b13-8077-bccc89fa57a5\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\f13c8673-1ef6-4b13-8077-bccc89fa57a5\build2.exe"C:\Users\Admin\AppData\Local\f13c8673-1ef6-4b13-8077-bccc89fa57a5\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\f13c8673-1ef6-4b13-8077-bccc89fa57a5\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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C:\Users\Admin\AppData\Local\f13c8673-1ef6-4b13-8077-bccc89fa57a5\build3.exe"C:\Users\Admin\AppData\Local\f13c8673-1ef6-4b13-8077-bccc89fa57a5\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\DB34.exeC:\Users\Admin\AppData\Local\Temp\DB34.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\DC8D.exeC:\Users\Admin\AppData\Local\Temp\DC8D.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 3402⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\E028.exeC:\Users\Admin\AppData\Local\Temp\E028.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4328 -s 3402⤵
- Program crash
-
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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\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 2316 -ip 23161⤵
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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 444 -p 4328 -ip 43281⤵
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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:\Users\Admin\AppData\Local\Temp\63D0.exeC:\Users\Admin\AppData\Local\Temp\63D0.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Checks processor information in registry
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C:\Windows\SysWOW64\agentactivationruntimestarter.exeC:\Windows\system32\agentactivationruntimestarter.exe2⤵
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
- Blocklisted process makes network request
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 6282⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 9042⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 9522⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3592 -s 9522⤵
- Program crash
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
- Blocklisted process makes network request
- Checks processor information in registry
- Modifies registry class
- Suspicious use of FindShellTrayWindow
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k AarSvcGroup -p -s AarSvc1⤵
- Checks SCSI registry key(s)
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x4c0 0x4c81⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3592 -ip 35921⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3592 -ip 35921⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 3592 -ip 35921⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 592 -p 3592 -ip 35921⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
mozglue.dll
nss3.dll
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
D8C2.exe
63D0.exe
63D0.exe
D798.dll
D798.dll
D8C2.exe
D8C2.exe
D8C2.exe
D8C2.exe
D8C2.exe
DB34.exe
DB34.exe
DC8D.exe
DC8D.exe
E028.exe
E028.exe
Sepawuaopqtypsq.tmp
build2.exe
build2.exe
build2.exe
build3.exe
build3.exe
mstsca.exe
mstsca.exe
memory/60-192-0x000000000067A000-0x000000000070B000-memory.dmp
memory/1552-170-0x0000000002180000-0x000000000229B000-memory.dmp
memory/1552-168-0x0000000001FA5000-0x0000000002036000-memory.dmp
memory/2180-159-0x0000000000AE0000-0x0000000000B4B000-memory.dmp
memory/2180-175-0x0000000000AE0000-0x0000000000B4B000-memory.dmp
memory/2180-158-0x0000000000B50000-0x0000000000BC5000-memory.dmp
memory/2316-162-0x0000000000400000-0x0000000000597000-memory.dmp
memory/2316-160-0x0000000000813000-0x0000000000824000-memory.dmp
memory/2996-213-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/2996-206-0x0000000000400000-0x0000000000463000-memory.dmp
memory/2996-239-0x0000000000400000-0x0000000000463000-memory.dmp
memory/2996-209-0x0000000000400000-0x0000000000463000-memory.dmp
memory/2996-212-0x0000000000400000-0x0000000000463000-memory.dmp
memory/3440-156-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/3440-157-0x0000000000400000-0x0000000000597000-memory.dmp
memory/3440-155-0x0000000000693000-0x00000000006A4000-memory.dmp
memory/3440-186-0x0000000000400000-0x0000000000597000-memory.dmp
memory/3448-163-0x00000000008B0000-0x00000000008BC000-memory.dmp
memory/3592-247-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/3592-273-0x0000000003010000-0x0000000003AD3000-memory.dmp
memory/3592-265-0x0000000003BA0000-0x0000000003CE0000-memory.dmp
memory/3592-264-0x0000000003BA0000-0x0000000003CE0000-memory.dmp
memory/3592-263-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/3592-262-0x0000000003BA0000-0x0000000003CE0000-memory.dmp
memory/3592-261-0x0000000003BA0000-0x0000000003CE0000-memory.dmp
memory/3592-260-0x0000000003BA0000-0x0000000003CE0000-memory.dmp
memory/3592-259-0x0000000003BA0000-0x0000000003CE0000-memory.dmp
memory/3592-258-0x0000000003BA0000-0x0000000003CE0000-memory.dmp
memory/3592-257-0x0000000003BA0000-0x0000000003CE0000-memory.dmp
memory/3592-256-0x0000000003010000-0x0000000003AD3000-memory.dmp
memory/3592-255-0x0000000003010000-0x0000000003AD3000-memory.dmp
memory/3592-254-0x0000000003010000-0x0000000003AD3000-memory.dmp
memory/3592-251-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/3592-250-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/3592-249-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/3592-248-0x0000000002450000-0x0000000002712000-memory.dmp
memory/3592-245-0x0000000002450000-0x0000000002712000-memory.dmp
memory/3592-244-0x0000000000834000-0x0000000000952000-memory.dmp
memory/3928-133-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/3928-132-0x0000000000823000-0x0000000000834000-memory.dmp
memory/3928-135-0x0000000000400000-0x0000000000597000-memory.dmp
memory/3928-134-0x0000000000400000-0x0000000000597000-memory.dmp
memory/3960-191-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3960-233-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3960-195-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3960-190-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4328-172-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/4328-171-0x0000000000823000-0x0000000000833000-memory.dmp
memory/4328-173-0x0000000000400000-0x0000000000596000-memory.dmp
memory/4412-178-0x0000000003200000-0x00000000032C2000-memory.dmp
memory/4412-185-0x00000000030D0000-0x00000000031E4000-memory.dmp
memory/4412-149-0x0000000002E90000-0x0000000002FA4000-memory.dmp
memory/4412-182-0x00000000032E0000-0x000000000338D000-memory.dmp
memory/4412-150-0x00000000030D0000-0x00000000031E4000-memory.dmp
memory/4608-169-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4608-165-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4608-181-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4608-174-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4608-167-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4760-267-0x0000000002950000-0x0000000003413000-memory.dmp
memory/4760-268-0x00000000034E0000-0x0000000003620000-memory.dmp
memory/4760-269-0x00000000034E0000-0x0000000003620000-memory.dmp
memory/4760-270-0x00000000006D0000-0x0000000001074000-memory.dmp
memory/4760-271-0x0000000002950000-0x0000000003413000-memory.dmp
memory/4760-272-0x0000000002950000-0x0000000003413000-memory.dmp
memory/4980-210-0x00000000008AD000-0x00000000008D9000-memory.dmp
memory/4980-211-0x0000000000810000-0x000000000085F000-memory.dmp