Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
27/09/2022, 13:02
General
- Target 42907ad5b2e791285f0aa3943d82f695.exe
- Size 319KB
- Sample220927-p9s9rsdec7
- SHA256 bf68f342d067a45faefd8844507d7a7785d05d5942f4c2bb9ff812f559fe0038
Malware Config
Extracted
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djvu
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http://winnlinne.com/lancer/get.php
-
extension
.ofww
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offline_id
xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1
-
payload_url
http://rgyui.top/dl/build2.exe
http://winnlinne.com/files/1/build3.exe
-
ransomnote
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Extracted
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vidar
-
54.7
-
517
-
https://t.me/trampapanam
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https://nerdculture.de/@yoxhyp
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profile_id
517
Extracted
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redline
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11
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77.73.134.27:7161
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auth_value
e6aadafed1fda7723d7655a5894828d2
Extracted
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raccoon
-
aeea23901ace2687ada0edd1d2615c7f
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http://77.73.134.31/
Signatures
- DcRat 4 IoCs
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
- Detected Djvu ransomware 10 IoCs
- Detects Smokeloader packer 2 IoCs
- Djvu Ransomware
Ransomware which is a variant of the STOP family.
- Raccoon
Raccoon is an infostealer written in C++ and first seen in 2019.
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 1 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 15 IoCs
- VMProtect packed file 9 IoCs
Detects executables packed with VMProtect commercial packer.
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 7 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.
- Themida packer 9 IoCs
Detects Themida, an advanced Windows software protection system.
- 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.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- 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 NtSetInformationThreadHideFromDebugger 3 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 38 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\42907ad5b2e791285f0aa3943d82f695.exe"C:\Users\Admin\AppData\Local\Temp\42907ad5b2e791285f0aa3943d82f695.exe"1⤵
- DcRat
- 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\DE9D.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\DE9D.dll2⤵
- Loads dropped DLL
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C:\Users\Admin\AppData\Local\Temp\E749.exeC:\Users\Admin\AppData\Local\Temp\E749.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\E93E.exeC:\Users\Admin\AppData\Local\Temp\E93E.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\E93E.exeC:\Users\Admin\AppData\Local\Temp\E93E.exe2⤵
- DcRat
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\09f55447-b4ad-4892-a7aa-ab4c8336298e" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
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C:\Users\Admin\AppData\Local\Temp\E93E.exe"C:\Users\Admin\AppData\Local\Temp\E93E.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\E93E.exe"C:\Users\Admin\AppData\Local\Temp\E93E.exe" --Admin IsNotAutoStart IsNotTask4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\8d0731b2-f0cb-4929-bce1-24de6c822180\build2.exe"C:\Users\Admin\AppData\Local\8d0731b2-f0cb-4929-bce1-24de6c822180\build2.exe"5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\8d0731b2-f0cb-4929-bce1-24de6c822180\build2.exe"C:\Users\Admin\AppData\Local\8d0731b2-f0cb-4929-bce1-24de6c822180\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\8d0731b2-f0cb-4929-bce1-24de6c822180\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
-
-
C:\Windows\SysWOW64\timeout.exetimeout /t 68⤵
- Delays execution with timeout.exe
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-
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-
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C:\Users\Admin\AppData\Local\8d0731b2-f0cb-4929-bce1-24de6c822180\build3.exe"C:\Users\Admin\AppData\Local\8d0731b2-f0cb-4929-bce1-24de6c822180\build3.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
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⤵
- DcRat
- Creates scheduled task(s)
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-
-
-
-
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C:\Users\Admin\AppData\Local\Temp\EC2D.exeC:\Users\Admin\AppData\Local\Temp\EC2D.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\FB22.exeC:\Users\Admin\AppData\Local\Temp\FB22.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
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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\Local\Temp\8542.exeC:\Users\Admin\AppData\Local\Temp\8542.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\9224.exeC:\Users\Admin\AppData\Local\Temp\9224.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\A928.exeC:\Users\Admin\AppData\Local\Temp\A928.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\BE95.exeC:\Users\Admin\AppData\Local\Temp\BE95.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
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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⤵
- DcRat
- 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
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
mozglue.dll
nss3.dll
sqlite3.dll
E93E.exe
build2.exe
build2.exe
build2.exe
build3.exe
build3.exe
8542.exe
8542.exe
9224.exe
9224.exe
A928.exe
A928.exe
BE95.exe
BE95.exe
DE9D.dll
DE9D.dll
DE9D.dll
E749.exe
E749.exe
E93E.exe
E93E.exe
E93E.exe
E93E.exe
E93E.exe
EC2D.exe
EC2D.exe
FB22.exe
FB22.exe
mstsca.exe
mstsca.exe
memory/8-237-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/8-230-0x0000000000400000-0x000000000045B000-memory.dmp
memory/8-258-0x0000000000400000-0x000000000045B000-memory.dmp
memory/8-236-0x0000000000400000-0x000000000045B000-memory.dmp
memory/8-233-0x0000000000400000-0x000000000045B000-memory.dmp
memory/8-232-0x0000000000400000-0x000000000045B000-memory.dmp
memory/392-304-0x0000000000430000-0x0000000000435000-memory.dmp
memory/392-305-0x0000000000420000-0x0000000000429000-memory.dmp
memory/1312-154-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1312-158-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1312-190-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1312-152-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1312-156-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1512-157-0x00000000022F0000-0x000000000240B000-memory.dmp
memory/1512-155-0x0000000002122000-0x00000000021B3000-memory.dmp
memory/1816-203-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1816-226-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1816-205-0x0000000000400000-0x0000000000537000-memory.dmp
memory/1816-210-0x0000000000400000-0x0000000000537000-memory.dmp
memory/2420-308-0x00000000012C0000-0x00000000012CB000-memory.dmp
memory/2420-307-0x00000000012D0000-0x00000000012D6000-memory.dmp
memory/3048-213-0x0000000007160000-0x00000000071C6000-memory.dmp
memory/3048-223-0x00000000077F0000-0x0000000007D1C000-memory.dmp
memory/3048-167-0x0000000000400000-0x0000000000E00000-memory.dmp
memory/3048-169-0x0000000000400000-0x0000000000E00000-memory.dmp
memory/3048-217-0x0000000077500000-0x00000000776A3000-memory.dmp
memory/3048-182-0x0000000000400000-0x0000000000E00000-memory.dmp
memory/3048-183-0x0000000000400000-0x0000000000E00000-memory.dmp
memory/3048-199-0x0000000006350000-0x000000000638C000-memory.dmp
memory/3048-198-0x0000000005630000-0x0000000005642000-memory.dmp
memory/3048-222-0x0000000007610000-0x00000000077D2000-memory.dmp
memory/3048-212-0x0000000000400000-0x0000000000E00000-memory.dmp
memory/3048-224-0x0000000007E40000-0x0000000007EB6000-memory.dmp
memory/3048-225-0x0000000007EE0000-0x0000000007F30000-memory.dmp
memory/3048-197-0x0000000006240000-0x000000000634A000-memory.dmp
memory/3048-228-0x0000000077500000-0x00000000776A3000-memory.dmp
memory/3048-227-0x0000000000400000-0x0000000000E00000-memory.dmp
memory/3048-196-0x0000000005C20000-0x0000000006238000-memory.dmp
memory/3048-184-0x0000000000400000-0x0000000000E00000-memory.dmp
memory/3048-186-0x0000000077500000-0x00000000776A3000-memory.dmp
memory/3048-192-0x00000000054D0000-0x0000000005562000-memory.dmp
memory/3048-191-0x0000000005670000-0x0000000005C14000-memory.dmp
memory/3472-180-0x0000000000E00000-0x0000000000E0C000-memory.dmp
memory/4076-204-0x00000000022D4000-0x0000000002365000-memory.dmp
memory/4220-187-0x00000000012C0000-0x000000000132B000-memory.dmp
memory/4220-168-0x00000000012C0000-0x000000000132B000-memory.dmp
memory/4220-178-0x0000000001330000-0x00000000013A5000-memory.dmp
memory/4504-235-0x00000000006C0000-0x0000000000707000-memory.dmp
memory/4504-234-0x000000000076E000-0x0000000000797000-memory.dmp
memory/4656-134-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4656-135-0x0000000000400000-0x0000000000490000-memory.dmp
memory/4656-133-0x0000000000600000-0x0000000000609000-memory.dmp
memory/4656-132-0x00000000004BE000-0x00000000004CE000-memory.dmp
memory/4916-193-0x000000000056F000-0x000000000057F000-memory.dmp
memory/4916-211-0x0000000000400000-0x0000000000454000-memory.dmp
memory/4916-195-0x0000000000400000-0x0000000000454000-memory.dmp
memory/4916-194-0x0000000000500000-0x0000000000509000-memory.dmp
memory/5052-160-0x00000000028F0000-0x00000000029E1000-memory.dmp
memory/5052-141-0x0000000002180000-0x0000000002308000-memory.dmp
memory/5052-159-0x00000000026D0000-0x00000000027F5000-memory.dmp
memory/5052-166-0x0000000002A00000-0x0000000002ABE000-memory.dmp
memory/5052-171-0x0000000002AD0000-0x0000000002B78000-memory.dmp
memory/5052-181-0x00000000028F0000-0x00000000029E1000-memory.dmp
memory/102936-265-0x0000000000400000-0x0000000000428000-memory.dmp
memory/102984-281-0x0000000000400000-0x000000000059A000-memory.dmp
memory/102984-280-0x00000000005F9000-0x0000000000623000-memory.dmp
memory/102984-276-0x0000000006E90000-0x0000000006EAE000-memory.dmp
memory/102984-274-0x00000000020C0000-0x00000000020F8000-memory.dmp
memory/102984-275-0x0000000000400000-0x000000000059A000-memory.dmp
memory/102984-273-0x00000000005F9000-0x0000000000623000-memory.dmp
memory/103240-286-0x0000000000400000-0x0000000000DE2000-memory.dmp
memory/103240-291-0x0000000000400000-0x0000000000DE2000-memory.dmp
memory/103264-289-0x0000000000A70000-0x0000000000A7B000-memory.dmp
memory/103264-288-0x0000000000A80000-0x0000000000A87000-memory.dmp
memory/103324-294-0x00000000001B0000-0x00000000001B9000-memory.dmp
memory/103324-292-0x00000000001A0000-0x00000000001AF000-memory.dmp
memory/103352-295-0x00000000012D0000-0x00000000012D5000-memory.dmp
memory/103352-297-0x00000000012C0000-0x00000000012C9000-memory.dmp
memory/103380-298-0x00000000003C0000-0x00000000003C6000-memory.dmp
memory/103380-299-0x00000000003B0000-0x00000000003BC000-memory.dmp
memory/103416-302-0x00000000012C0000-0x00000000012E7000-memory.dmp
memory/103416-301-0x00000000012F0000-0x0000000001312000-memory.dmp