Analysis
- max time kernel
57s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240221-en - resource tags
- submitted
24/02/2024, 19:02
General
- Target c725af162ad3190c0b65770fb08fbe23.exe
- Size 253KB
- Sample240224-xp6clacf4s
- SHA256 98c3d93eeb1c3139c530df4aa6270bb3df7c24148e71f195c929486136872eee
Malware Config
Extracted
-
smokeloader
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2022
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http://selebration17io.io/index.php
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http://vacantion18ffeu.cc/index.php
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http://valarioulinity1.net/index.php
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http://buriatiarutuhuob.net/index.php
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http://cassiosssionunu.me/index.php
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http://sulugilioiu19.net/index.php
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http://goodfooggooftool.net/index.php
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http://kamsmad.com/tmp/index.php
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http://souzhensil.ru/tmp/index.php
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http://teplokub.com.ua/tmp/index.php
Extracted
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smokeloader
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pub1
Extracted
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stealc
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http://185.172.128.145
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url_path
/3cd2b41cbde8fc9c.php
Extracted
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systembc
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173.44.141.149:4001
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153.92.222.162:4001
Extracted
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lumma
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https://resergvearyinitiani.shop/api
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https://technologyenterdo.shop/api
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https://detectordiscusser.shop/api
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https://turkeyunlikelyofw.shop/api
Signatures
- DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
- Glupteba
Glupteba is a modular loader written in Golang with various components.
- Glupteba payload 5 IoCs
- Lumma Stealer
An infostealer written in C++ first seen in August 2022.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Stealc
Stealc is an infostealer written in C++.
- SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
- Creates new service(s) 1 TTPs
- Downloads MZ/PE file
- Modifies Windows Firewall 2 TTPs 1 IoCs
- Stops running service(s) 3 TTPs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Deletes itself 1 IoCs
- Executes dropped EXE 17 IoCs
- Loads dropped DLL 9 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- UPX packed file 10 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Suspicious use of SetThreadContext 1 IoCs
- Launches sc.exe 4 IoCs
Sc.exe is a Windows utlilty to control services on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 3 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 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Modifies data under HKEY_USERS 64 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 29 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 64 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\c725af162ad3190c0b65770fb08fbe23.exe"C:\Users\Admin\AppData\Local\Temp\c725af162ad3190c0b65770fb08fbe23.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\93C4.exeC:\Users\Admin\AppData\Local\Temp\93C4.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\93C4.exeC:\Users\Admin\AppData\Local\Temp\93C4.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
-
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C:\Users\Admin\AppData\Local\Temp\AD77.exeC:\Users\Admin\AppData\Local\Temp\AD77.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\288c47bbc1871b439df19ff4df68f076.exe"C:\Users\Admin\AppData\Local\Temp\288c47bbc1871b439df19ff4df68f076.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile3⤵
- Suspicious use of AdjustPrivilegeToken
-
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C:\Users\Admin\AppData\Local\Temp\288c47bbc1871b439df19ff4df68f076.exe"C:\Users\Admin\AppData\Local\Temp\288c47bbc1871b439df19ff4df68f076.exe"3⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
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C:\Windows\system32\cmd.exeC:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"4⤵
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C:\Windows\system32\netsh.exenetsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes5⤵
- Modifies Windows Firewall
-
-
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell -nologo -noprofile4⤵
-
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C:\Windows\rss\csrss.exeC:\Windows\rss\csrss.exe4⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 6004⤵
- Program crash
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-
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C:\Users\Admin\AppData\Local\Temp\InstallSetup4.exe"C:\Users\Admin\AppData\Local\Temp\InstallSetup4.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\BroomSetup.exeC:\Users\Admin\AppData\Local\Temp\BroomSetup.exe3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "4⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\chcp.comchcp 12515⤵
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn "MalayamaraUpdate" /tr "'C:\Users\Admin\AppData\Local\Temp\Updater.exe'" /sc minute /mo 30 /F5⤵
- Creates scheduled task(s)
-
-
-
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C:\Users\Admin\AppData\Local\Temp\nsgBAE6.tmpC:\Users\Admin\AppData\Local\Temp\nsgBAE6.tmp3⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1608 -s 23844⤵
- Program crash
-
-
-
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C:\Users\Admin\AppData\Local\Temp\FourthX.exe"C:\Users\Admin\AppData\Local\Temp\FourthX.exe"2⤵
- Executes dropped EXE
-
C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force3⤵
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe delete "UTIXDCVF"3⤵
- Launches sc.exe
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart3⤵
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C:\Windows\system32\wusa.exewusa /uninstall /kb:890830 /quiet /norestart4⤵
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-
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe create "UTIXDCVF" binpath= "C:\ProgramData\xcfonrchdkar\vueqjgslwynd.exe" start= "auto"3⤵
- Executes dropped EXE
- Launches sc.exe
-
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe start "UTIXDCVF"3⤵
- Launches sc.exe
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C:\Windows\system32\sc.exeC:\Windows\system32\sc.exe stop eventlog3⤵
- Launches sc.exe
-
-
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C:\Users\Admin\AppData\Local\Temp\B8A3.exeC:\Users\Admin\AppData\Local\Temp\B8A3.exe1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\C382.exeC:\Users\Admin\AppData\Local\Temp\C382.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-B3E0V.tmp\C382.tmp"C:\Users\Admin\AppData\Local\Temp\is-B3E0V.tmp\C382.tmp" /SL5="$B0222,4323177,54272,C:\Users\Admin\AppData\Local\Temp\C382.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Trafaret\trafaret.exe"C:\Users\Admin\AppData\Local\Trafaret\trafaret.exe" -i3⤵
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C:\Users\Admin\AppData\Local\Trafaret\trafaret.exe"C:\Users\Admin\AppData\Local\Trafaret\trafaret.exe" -s3⤵
- Executes dropped EXE
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-
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\CB43.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\CB43.dll2⤵
- Loads dropped DLL
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C:\Users\Admin\AppData\Local\Temp\DB23.exeC:\Users\Admin\AppData\Local\Temp\DB23.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\DE02.exeC:\Users\Admin\AppData\Local\Temp\DE02.exe1⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\E0E1.dll1⤵
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\E0E1.dll2⤵
- Loads dropped DLL
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C:\Users\Admin\AppData\Local\Temp\E4CA.exeC:\Users\Admin\AppData\Local\Temp\E4CA.exe1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2744 -s 5402⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2744 -ip 27441⤵
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C:\ProgramData\xcfonrchdkar\vueqjgslwynd.exeC:\ProgramData\xcfonrchdkar\vueqjgslwynd.exe1⤵
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C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force2⤵
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c wusa /uninstall /kb:890830 /quiet /norestart2⤵
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C:\Windows\system32\wusa.exewusa /uninstall /kb:890830 /quiet /norestart3⤵
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C:\Windows\system32\conhost.exeC:\Windows\system32\conhost.exe2⤵
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C:\Windows\explorer.exeexplorer.exe2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1608 -ip 16081⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4804 -ip 48041⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
3Windows Service
3Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
3Windows Service
3Scheduled Task/Job
1Defense Evasion
Impair Defenses
2Disable or Modify System Firewall
1Modify Registry
1Pre-OS Boot
1Bootkit
1Replay Monitor
Loading Replay Monitor...
Downloads
Are.docx
mozglue.dll
nss3.dll
vueqjgslwynd.exe
288c47bbc1871b439df19ff4df68f076.exe
288c47bbc1871b439df19ff4df68f076.exe
cached-microdesc-consensus.tmp
cached-microdescs.new
93C4.exe
AD77.exe
B8A3.exe
BroomSetup.exe
C382.exe
C382.exe
CB43.dll
CB43.dll
DB23.exe
DB23.exe
DE02.exe
E0E1.dll
FourthX.exe
FourthX.exe
FourthX.exe
InstallSetup4.exe
InstallSetup4.exe
__PSScriptPolicyTest_3t5jhluq.5nc.ps1
C382.tmp
_iscrypt.dll
_isdecmp.dll
INetC.dll
nsgBAE6.tmp
trafaret.exe
trafaret.exe
trafaret.exe
Task.bat
powershell.exe.log
StartupProfileData-Interactive
StartupProfileData-Interactive
csrss.exe
csrss.exe
memory/456-33-0x0000000073AE0000-0x0000000074290000-memory.dmp
memory/456-68-0x0000000073AE0000-0x0000000074290000-memory.dmp
memory/456-34-0x0000000000C60000-0x0000000001516000-memory.dmp
memory/1180-335-0x0000000002590000-0x00000000026CC000-memory.dmp
memory/1180-336-0x00000000026D0000-0x00000000027EB000-memory.dmp
memory/1180-339-0x00000000026D0000-0x00000000027EB000-memory.dmp
memory/1180-216-0x0000000010000000-0x000000001020C000-memory.dmp
memory/1180-367-0x0000000010000000-0x000000001020C000-memory.dmp
memory/1180-228-0x0000000000720000-0x0000000000726000-memory.dmp
memory/1608-272-0x0000000002F00000-0x0000000003000000-memory.dmp
memory/1608-195-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1608-371-0x0000000000400000-0x0000000002D41000-memory.dmp
memory/1608-104-0x0000000002F00000-0x0000000003000000-memory.dmp
memory/1608-101-0x0000000002EC0000-0x0000000002EF4000-memory.dmp
memory/1608-103-0x0000000000400000-0x0000000002D41000-memory.dmp
memory/1608-259-0x0000000000400000-0x0000000002D41000-memory.dmp
memory/1608-315-0x0000000000400000-0x0000000002D41000-memory.dmp
memory/1920-209-0x0000000000400000-0x0000000000790000-memory.dmp
memory/1920-366-0x0000000000400000-0x0000000000790000-memory.dmp
memory/1920-212-0x0000000000400000-0x0000000000790000-memory.dmp
memory/2340-293-0x0000000000560000-0x0000000000561000-memory.dmp
memory/2340-301-0x0000000000FA0000-0x000000000184F000-memory.dmp
memory/2440-3-0x0000000000400000-0x0000000002D3E000-memory.dmp
memory/2440-1-0x0000000002FF0000-0x00000000030F0000-memory.dmp
memory/2440-5-0x0000000000400000-0x0000000002D3E000-memory.dmp
memory/2440-2-0x0000000002FA0000-0x0000000002FAB000-memory.dmp
memory/2744-340-0x0000000000400000-0x0000000002D8C000-memory.dmp
memory/2948-81-0x0000000002F30000-0x0000000003030000-memory.dmp
memory/2948-86-0x0000000000400000-0x0000000002D3E000-memory.dmp
memory/2948-207-0x0000000002F30000-0x0000000003030000-memory.dmp
memory/2948-82-0x0000000002E50000-0x0000000002E5B000-memory.dmp
memory/2948-218-0x0000000000400000-0x0000000002D3E000-memory.dmp
memory/3200-368-0x0000000000400000-0x0000000002D8C000-memory.dmp
memory/3200-305-0x0000000002FB0000-0x00000000030B0000-memory.dmp
memory/3200-306-0x0000000000400000-0x0000000002D8C000-memory.dmp
memory/3524-17-0x0000000004CF0000-0x0000000004EA7000-memory.dmp
memory/3524-16-0x0000000004B20000-0x0000000004CE4000-memory.dmp
memory/3532-4-0x0000000002EF0000-0x0000000002F06000-memory.dmp
memory/3532-211-0x00000000077B0000-0x00000000077C6000-memory.dmp
memory/3584-302-0x0000000000400000-0x00000000008E2000-memory.dmp
memory/3584-75-0x0000000000AD0000-0x0000000000AD1000-memory.dmp
memory/3584-203-0x0000000000AD0000-0x0000000000AD1000-memory.dmp
memory/3608-24-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3608-313-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3608-370-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3608-23-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3608-22-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3608-21-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3608-18-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3608-20-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3608-108-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3608-98-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3628-92-0x0000000000400000-0x0000000000D1C000-memory.dmp
memory/3628-294-0x0000000000400000-0x0000000000D1C000-memory.dmp
memory/3628-89-0x0000000002F20000-0x000000000380B000-memory.dmp
memory/3628-100-0x0000000002B20000-0x0000000002F1C000-memory.dmp
memory/3628-363-0x0000000000400000-0x0000000000D1C000-memory.dmp
memory/3628-225-0x0000000000400000-0x0000000000D1C000-memory.dmp
memory/3628-230-0x0000000002B20000-0x0000000002F1C000-memory.dmp
memory/4152-136-0x0000000004C40000-0x0000000004C62000-memory.dmp
memory/4152-202-0x0000000006190000-0x00000000061D4000-memory.dmp
memory/4152-289-0x0000000007350000-0x0000000007364000-memory.dmp
memory/4152-290-0x0000000007440000-0x000000000745A000-memory.dmp
memory/4152-260-0x0000000072180000-0x0000000072930000-memory.dmp
memory/4152-258-0x000000006E920000-0x000000006EC74000-memory.dmp
memory/4152-257-0x0000000070810000-0x000000007085C000-memory.dmp
memory/4152-256-0x0000000007190000-0x00000000071C2000-memory.dmp
memory/4152-270-0x000000007F140000-0x000000007F150000-memory.dmp
memory/4152-303-0x0000000007390000-0x0000000007398000-memory.dmp
memory/4152-249-0x0000000006FD0000-0x0000000006FEA000-memory.dmp
memory/4152-248-0x0000000007630000-0x0000000007CAA000-memory.dmp
memory/4152-236-0x0000000006D30000-0x0000000006DA6000-memory.dmp
memory/4152-285-0x0000000007340000-0x000000000734E000-memory.dmp
memory/4152-280-0x0000000007300000-0x0000000007311000-memory.dmp
memory/4152-115-0x0000000004700000-0x0000000004710000-memory.dmp
memory/4152-273-0x00000000071F0000-0x0000000007293000-memory.dmp
memory/4152-275-0x00000000072E0000-0x00000000072EA000-memory.dmp
memory/4152-190-0x0000000005C60000-0x0000000005CAC000-memory.dmp
memory/4152-109-0x0000000004630000-0x0000000004666000-memory.dmp
memory/4152-116-0x0000000004D40000-0x0000000005368000-memory.dmp
memory/4152-188-0x0000000005C10000-0x0000000005C2E000-memory.dmp
memory/4152-279-0x00000000073A0000-0x0000000007436000-memory.dmp
memory/4152-113-0x0000000072180000-0x0000000072930000-memory.dmp
memory/4152-149-0x0000000005710000-0x0000000005A64000-memory.dmp
memory/4152-139-0x0000000005590000-0x00000000055F6000-memory.dmp
memory/4152-138-0x0000000005520000-0x0000000005586000-memory.dmp
memory/4152-274-0x0000000004700000-0x0000000004710000-memory.dmp
memory/4152-271-0x00000000071D0000-0x00000000071EE000-memory.dmp
memory/4152-121-0x0000000004700000-0x0000000004710000-memory.dmp
memory/4556-120-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4556-111-0x0000000000400000-0x0000000000414000-memory.dmp
memory/4732-137-0x0000000000730000-0x0000000000731000-memory.dmp
memory/4732-365-0x0000000000400000-0x00000000004BC000-memory.dmp
memory/4804-187-0x0000000000400000-0x0000000000790000-memory.dmp
memory/4804-189-0x0000000000400000-0x0000000000790000-memory.dmp
memory/4804-193-0x0000000000400000-0x0000000000790000-memory.dmp
memory/4804-194-0x0000000000400000-0x0000000000790000-memory.dmp