Analysis
- max time kernel
142s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
19/10/2022, 10:31
General
- Target file.exe
- Size 230KB
- Sample221019-mkcvdafggp
- SHA256 966b7e41dea3a537f3692cf71d9f2789337f3c48ec0e6d5ff49c706b03468ea6
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 7 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 50 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 34 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\20C6.exeC:\Users\Admin\AppData\Local\Temp\20C6.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\20C6.exeC:\Users\Admin\AppData\Local\Temp\20C6.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\d891636a-6298-4ae8-8823-1ccbe25d3f4d" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\20C6.exe"C:\Users\Admin\AppData\Local\Temp\20C6.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\20C6.exe"C:\Users\Admin\AppData\Local\Temp\20C6.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\4578b786-3f15-4357-80c5-b5b0d3c99fa4\build2.exe"C:\Users\Admin\AppData\Local\4578b786-3f15-4357-80c5-b5b0d3c99fa4\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\4578b786-3f15-4357-80c5-b5b0d3c99fa4\build2.exe"C:\Users\Admin\AppData\Local\4578b786-3f15-4357-80c5-b5b0d3c99fa4\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 taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\4578b786-3f15-4357-80c5-b5b0d3c99fa4\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\4578b786-3f15-4357-80c5-b5b0d3c99fa4\build3.exe"C:\Users\Admin\AppData\Local\4578b786-3f15-4357-80c5-b5b0d3c99fa4\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\21C1.exeC:\Users\Admin\AppData\Local\Temp\21C1.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\230B.exeC:\Users\Admin\AppData\Local\Temp\230B.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1784 -s 3402⤵
- Program crash
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-
C:\Users\Admin\AppData\Local\Temp\253E.exeC:\Users\Admin\AppData\Local\Temp\253E.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1716 -s 3402⤵
- Program crash
-
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\287B.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\287B.dll2⤵
- Loads dropped DLL
-
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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 460 -p 1784 -ip 17841⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1716 -ip 17161⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe1⤵
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C:\Users\Admin\AppData\Local\Temp\984D.exeC:\Users\Admin\AppData\Local\Temp\984D.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 4948 -s 6202⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 9362⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 9362⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 10322⤵
- Program crash
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\syswow64\rundll32.exe" "C:\Windows\syswow64\shell32.dll",#612⤵
- Checks processor information in registry
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 10482⤵
- Program crash
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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\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 0x41c 0x4601⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4948 -ip 49481⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4948 -ip 49481⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 4948 -ip 49481⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4948 -ip 49481⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4948 -ip 49481⤵
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
20C6.exe
20C6.exe
20C6.exe
20C6.exe
20C6.exe
21C1.exe
21C1.exe
230B.exe
230B.exe
253E.exe
253E.exe
287B.dll
287B.dll
984D.exe
984D.exe
Sepawuaopqtypsq.tmp
20C6.exe
mstsca.exe
mstsca.exe
memory/744-204-0x0000000000400000-0x0000000000463000-memory.dmp
memory/744-208-0x0000000000400000-0x0000000000463000-memory.dmp
memory/744-213-0x0000000000400000-0x0000000000463000-memory.dmp
memory/744-214-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/744-236-0x0000000000400000-0x0000000000463000-memory.dmp
memory/932-163-0x0000000000720000-0x000000000072C000-memory.dmp
memory/1156-164-0x0000000001200000-0x0000000001275000-memory.dmp
memory/1156-165-0x0000000000F80000-0x0000000000FEB000-memory.dmp
memory/1156-174-0x0000000000F80000-0x0000000000FEB000-memory.dmp
memory/1716-161-0x0000000000400000-0x0000000000597000-memory.dmp
memory/1716-160-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/1716-159-0x00000000006E3000-0x00000000006F4000-memory.dmp
memory/1784-157-0x00000000006D3000-0x00000000006E4000-memory.dmp
memory/1784-158-0x0000000000400000-0x0000000000597000-memory.dmp
memory/2364-207-0x00000000021C0000-0x000000000220F000-memory.dmp
memory/3076-171-0x0000000002010000-0x00000000020A1000-memory.dmp
memory/3076-172-0x00000000021B0000-0x00000000022CB000-memory.dmp
memory/3232-175-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3232-168-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3232-173-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3232-182-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3232-170-0x0000000000400000-0x0000000000537000-memory.dmp
memory/3392-255-0x0000000000F90000-0x0000000000F94000-memory.dmp
memory/3392-254-0x0000000000F90000-0x0000000000F94000-memory.dmp
memory/3392-253-0x0000000000F80000-0x0000000000F84000-memory.dmp
memory/3504-270-0x0000000002D00000-0x00000000037C3000-memory.dmp
memory/3504-276-0x0000000002D00000-0x00000000037C3000-memory.dmp
memory/3504-273-0x0000000000800000-0x00000000011A4000-memory.dmp
memory/3504-274-0x0000000002D00000-0x00000000037C3000-memory.dmp
memory/3504-271-0x00000000037D0000-0x0000000003910000-memory.dmp
memory/3504-272-0x00000000037D0000-0x0000000003910000-memory.dmp
memory/4328-152-0x0000000000400000-0x0000000000597000-memory.dmp
memory/4328-150-0x00000000001F0000-0x00000000001F9000-memory.dmp
memory/4328-149-0x00000000007B3000-0x00000000007C4000-memory.dmp
memory/4328-166-0x0000000000400000-0x0000000000597000-memory.dmp
memory/4576-193-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4576-238-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4576-188-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4576-186-0x0000000000400000-0x0000000000537000-memory.dmp
memory/4648-187-0x0000000002005000-0x0000000002096000-memory.dmp
memory/4772-194-0x0000000003460000-0x0000000003522000-memory.dmp
memory/4772-176-0x0000000003160000-0x000000000325E000-memory.dmp
memory/4772-177-0x0000000003360000-0x000000000345E000-memory.dmp
memory/4772-198-0x0000000003530000-0x00000000035DD000-memory.dmp
memory/4772-201-0x0000000003360000-0x000000000345E000-memory.dmp
memory/4928-132-0x00000000006D3000-0x00000000006E4000-memory.dmp
memory/4928-134-0x0000000000400000-0x0000000000597000-memory.dmp
memory/4928-135-0x0000000000400000-0x0000000000597000-memory.dmp
memory/4928-136-0x00000000006D3000-0x00000000006E4000-memory.dmp
memory/4928-133-0x00000000006B0000-0x00000000006B9000-memory.dmp
memory/4948-261-0x0000000003C10000-0x0000000003D50000-memory.dmp
memory/4948-266-0x0000000003C10000-0x0000000003D50000-memory.dmp
memory/4948-259-0x0000000002F80000-0x0000000003A43000-memory.dmp
memory/4948-260-0x0000000002F80000-0x0000000003A43000-memory.dmp
memory/4948-247-0x0000000002470000-0x0000000002732000-memory.dmp
memory/4948-262-0x0000000003C10000-0x0000000003D50000-memory.dmp
memory/4948-263-0x0000000003C10000-0x0000000003D50000-memory.dmp
memory/4948-265-0x0000000003C10000-0x0000000003D50000-memory.dmp
memory/4948-264-0x0000000003C10000-0x0000000003D50000-memory.dmp
memory/4948-258-0x0000000002F80000-0x0000000003A43000-memory.dmp
memory/4948-267-0x0000000003C10000-0x0000000003D50000-memory.dmp
memory/4948-268-0x0000000003C10000-0x0000000003D50000-memory.dmp
memory/4948-257-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/4948-246-0x0000000000869000-0x0000000000987000-memory.dmp
memory/4948-251-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/4948-250-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/4948-249-0x0000000000400000-0x00000000006CE000-memory.dmp
memory/4948-275-0x0000000002F80000-0x0000000003A43000-memory.dmp
memory/4948-248-0x0000000000400000-0x00000000006CE000-memory.dmp