Analysis
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max time kernel
150s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
13-09-2024 02:51
Static task
static1
Behavioral task
behavioral1
Sample
invoice.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
invoice.exe
Resource
win10v2004-20240802-en
General
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Target
invoice.exe
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Size
1.4MB
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MD5
c9d77c591e284d81a87f54e086515333
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SHA1
e69f9859addc81b99703f7bc33fc9680df3b6d43
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SHA256
14534f9ecea0edc1d5fd9a220089cdd04dba9a8cf5b70334c5b15e6ad0a4860c
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SHA512
f4e5dc9c699d3a93155097ec71419f74c22e5cb96a83f55e0007c81ab93c751631d77462959c2385950d41b2ed43c19f71702c201c8ab412e721bbe76acd668b
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SSDEEP
24576:CCdxte/80jYLT3U1jfsWaAK+UbJKRWeSR813Cih0NhTIDiQ:Tw80cTsjkWaAK+UtrRU3uu
Malware Config
Extracted
remcos
RemoteHost
blakaa.duckdns.org: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-BNY62M
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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/2992-36-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2820-35-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral1/memory/2984-34-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral1/memory/2992-30-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2984-29-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral1/memory/2992-41-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2984-46-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft -
NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/2984-34-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral1/memory/2984-29-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral1/memory/2984-46-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/memory/2992-36-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral1/memory/2992-30-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral1/memory/2992-41-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts svchost.exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 1916 set thread context of 2692 1916 invoice.exe 30 PID 2692 set thread context of 2992 2692 svchost.exe 31 PID 2692 set thread context of 2984 2692 svchost.exe 32 PID 2692 set thread context of 2820 2692 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 invoice.exe 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 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2992 svchost.exe 2992 svchost.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
pid Process 1916 invoice.exe 2692 svchost.exe 2692 svchost.exe 2692 svchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2820 svchost.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1916 invoice.exe 1916 invoice.exe -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 1916 invoice.exe 1916 invoice.exe -
Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 1916 wrote to memory of 2692 1916 invoice.exe 30 PID 1916 wrote to memory of 2692 1916 invoice.exe 30 PID 1916 wrote to memory of 2692 1916 invoice.exe 30 PID 1916 wrote to memory of 2692 1916 invoice.exe 30 PID 1916 wrote to memory of 2692 1916 invoice.exe 30 PID 2692 wrote to memory of 2992 2692 svchost.exe 31 PID 2692 wrote to memory of 2992 2692 svchost.exe 31 PID 2692 wrote to memory of 2992 2692 svchost.exe 31 PID 2692 wrote to memory of 2992 2692 svchost.exe 31 PID 2692 wrote to memory of 2992 2692 svchost.exe 31 PID 2692 wrote to memory of 2984 2692 svchost.exe 32 PID 2692 wrote to memory of 2984 2692 svchost.exe 32 PID 2692 wrote to memory of 2984 2692 svchost.exe 32 PID 2692 wrote to memory of 2984 2692 svchost.exe 32 PID 2692 wrote to memory of 2984 2692 svchost.exe 32 PID 2692 wrote to memory of 2820 2692 svchost.exe 33 PID 2692 wrote to memory of 2820 2692 svchost.exe 33 PID 2692 wrote to memory of 2820 2692 svchost.exe 33 PID 2692 wrote to memory of 2820 2692 svchost.exe 33 PID 2692 wrote to memory of 2820 2692 svchost.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\invoice.exe"C:\Users\Admin\AppData\Local\Temp\invoice.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:1916 -
C:\Windows\SysWOW64\svchost.exe"C:\Users\Admin\AppData\Local\Temp\invoice.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\deopqviahzvwdlruofzebcqyaannz"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2992
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\fythrottvhnbgrgyfqmxeolpjgfwsqoj"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:2984
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\qaya"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2820
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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