Analysis
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max time kernel
148s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
16-08-2024 15:46
Behavioral task
behavioral1
Sample
DN TK 7239 (()DHL#3272524765pdf.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
DN TK 7239 (()DHL#3272524765pdf.exe
Resource
win10v2004-20240802-en
General
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Target
DN TK 7239 (()DHL#3272524765pdf.exe
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Size
853KB
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MD5
72fa44e3e13d946e188485a4115c67f4
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SHA1
36571ccce2ae7f092c8bff4fe80b7b4cd37eee66
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SHA256
2c98d193201137a3e33b34934fa866c2c66f346ed6878562e8191f4314bc5dc9
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SHA512
c1a97252b5b0048e861f2c2409b517ce86db911bae64606bbdfb482abb7d94877826265f7ef47c59c134c734054edbcb55b6e0a7317f43ddd35eabcc67717d7c
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SSDEEP
24576:mBXu9HGaVHoB42WGiRjocxGJo3ToETGMCjm:mw9VHM4YSjoaw8oEqMC
Malware Config
Extracted
remcos
RemoteHost
194.169.175.190:2404
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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-LBZ2BK
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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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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Detected Nirsoft tools 7 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral1/memory/2804-43-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral1/memory/2612-39-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral1/memory/2700-38-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2612-37-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral1/memory/2700-36-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2700-48-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2612-50-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft -
NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/2612-39-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral1/memory/2612-37-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral1/memory/2612-50-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/memory/2700-38-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral1/memory/2700-36-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral1/memory/2700-48-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
resource yara_rule behavioral1/memory/2352-0-0x0000000000800000-0x00000000009D7000-memory.dmp upx behavioral1/memory/2352-20-0x0000000000800000-0x00000000009D7000-memory.dmp upx -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts svchost.exe -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/memory/2352-20-0x0000000000800000-0x00000000009D7000-memory.dmp autoit_exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 2352 set thread context of 2712 2352 DN TK 7239 (()DHL#3272524765pdf.exe 30 PID 2712 set thread context of 2700 2712 svchost.exe 31 PID 2712 set thread context of 2612 2712 svchost.exe 32 PID 2712 set thread context of 2804 2712 svchost.exe 33 -
System Location Discovery: System Language Discovery 1 TTPs 5 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 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DN TK 7239 (()DHL#3272524765pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2700 svchost.exe 2700 svchost.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
pid Process 2352 DN TK 7239 (()DHL#3272524765pdf.exe 2712 svchost.exe 2712 svchost.exe 2712 svchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2804 svchost.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 2352 DN TK 7239 (()DHL#3272524765pdf.exe 2352 DN TK 7239 (()DHL#3272524765pdf.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 2352 DN TK 7239 (()DHL#3272524765pdf.exe 2352 DN TK 7239 (()DHL#3272524765pdf.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 2352 wrote to memory of 2712 2352 DN TK 7239 (()DHL#3272524765pdf.exe 30 PID 2352 wrote to memory of 2712 2352 DN TK 7239 (()DHL#3272524765pdf.exe 30 PID 2352 wrote to memory of 2712 2352 DN TK 7239 (()DHL#3272524765pdf.exe 30 PID 2352 wrote to memory of 2712 2352 DN TK 7239 (()DHL#3272524765pdf.exe 30 PID 2352 wrote to memory of 2712 2352 DN TK 7239 (()DHL#3272524765pdf.exe 30 PID 2712 wrote to memory of 2700 2712 svchost.exe 31 PID 2712 wrote to memory of 2700 2712 svchost.exe 31 PID 2712 wrote to memory of 2700 2712 svchost.exe 31 PID 2712 wrote to memory of 2700 2712 svchost.exe 31 PID 2712 wrote to memory of 2700 2712 svchost.exe 31 PID 2712 wrote to memory of 2612 2712 svchost.exe 32 PID 2712 wrote to memory of 2612 2712 svchost.exe 32 PID 2712 wrote to memory of 2612 2712 svchost.exe 32 PID 2712 wrote to memory of 2612 2712 svchost.exe 32 PID 2712 wrote to memory of 2612 2712 svchost.exe 32 PID 2712 wrote to memory of 2804 2712 svchost.exe 33 PID 2712 wrote to memory of 2804 2712 svchost.exe 33 PID 2712 wrote to memory of 2804 2712 svchost.exe 33 PID 2712 wrote to memory of 2804 2712 svchost.exe 33 PID 2712 wrote to memory of 2804 2712 svchost.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\DN TK 7239 (()DHL#3272524765pdf.exe"C:\Users\Admin\AppData\Local\Temp\DN TK 7239 (()DHL#3272524765pdf.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2352 -
C:\Windows\SysWOW64\svchost.exe"C:\Users\Admin\AppData\Local\Temp\DN TK 7239 (()DHL#3272524765pdf.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2712 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\mrxwidkxcrwroxncmptehibltohowov"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2700
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\ptdpjwvypzoeqljgdanfsnwuudzxxzmltx"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:2612
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\znqzkog"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2804
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84