Analysis
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max time kernel
149s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20231201-en -
resource tags
arch:x64arch:x86image:win7-20231201-enlocale:en-usos:windows7-x64system -
submitted
08/12/2023, 09:18
Static task
static1
Behavioral task
behavioral1
Sample
INVOICE0987650009.exe
Resource
win7-20231201-en
Behavioral task
behavioral2
Sample
INVOICE0987650009.exe
Resource
win10v2004-20231130-en
General
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Target
INVOICE0987650009.exe
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Size
757KB
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MD5
49eca8d1b29bfaec20599239db6f10da
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SHA1
ee605018797e3a9408e24b7ec0767ef5e096ac16
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SHA256
dfd724316cb0edbf1212cbf5e71f007d22b7a38e7860d96d4d4bedf17eaa85ea
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SHA512
a0d1d7910314cc76bdfa46b6f8cdc9909d850f7fe320be943c16bb6da86b213b23148b331626492a07fedda1932e9d09d4fd10faeb00171e43cdd801cfb71220
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SSDEEP
12288:HDWMD9ehE+uDneLBQt20dup/20AQBOLdxD4N1fahKDwancwk6pvxT0K0jlyOJN9I:FefZ27zZPdnjImBOQX
Malware Config
Extracted
remcos
RemoteHost
107.175.229.139:8087
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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-IZFV1M
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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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NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/2452-56-0x0000000000400000-0x0000000000457000-memory.dmp MailPassView behavioral1/memory/2452-70-0x0000000000400000-0x0000000000457000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/memory/1984-54-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral1/memory/1984-61-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Nirsoft 6 IoCs
resource yara_rule behavioral1/memory/1984-54-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2452-56-0x0000000000400000-0x0000000000457000-memory.dmp Nirsoft behavioral1/memory/1984-61-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2016-68-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral1/memory/2016-69-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral1/memory/2452-70-0x0000000000400000-0x0000000000457000-memory.dmp Nirsoft -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe Powershell.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe Powershell.exe -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1514849007-2165033493-4114354048-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts cvtres.exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 2700 set thread context of 2852 2700 INVOICE0987650009.exe 30 PID 2852 set thread context of 1984 2852 cvtres.exe 31 PID 2852 set thread context of 2452 2852 cvtres.exe 32 PID 2852 set thread context of 2016 2852 cvtres.exe 33 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1760 Powershell.exe 1984 cvtres.exe 1984 cvtres.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2852 cvtres.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 2852 cvtres.exe 2852 cvtres.exe 2852 cvtres.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1760 Powershell.exe Token: SeDebugPrivilege 2016 cvtres.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2852 cvtres.exe -
Suspicious use of WriteProcessMemory 32 IoCs
description pid Process procid_target PID 2700 wrote to memory of 1760 2700 INVOICE0987650009.exe 28 PID 2700 wrote to memory of 1760 2700 INVOICE0987650009.exe 28 PID 2700 wrote to memory of 1760 2700 INVOICE0987650009.exe 28 PID 2700 wrote to memory of 1760 2700 INVOICE0987650009.exe 28 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2700 wrote to memory of 2852 2700 INVOICE0987650009.exe 30 PID 2852 wrote to memory of 1984 2852 cvtres.exe 31 PID 2852 wrote to memory of 1984 2852 cvtres.exe 31 PID 2852 wrote to memory of 1984 2852 cvtres.exe 31 PID 2852 wrote to memory of 1984 2852 cvtres.exe 31 PID 2852 wrote to memory of 1984 2852 cvtres.exe 31 PID 2852 wrote to memory of 2452 2852 cvtres.exe 32 PID 2852 wrote to memory of 2452 2852 cvtres.exe 32 PID 2852 wrote to memory of 2452 2852 cvtres.exe 32 PID 2852 wrote to memory of 2452 2852 cvtres.exe 32 PID 2852 wrote to memory of 2452 2852 cvtres.exe 32 PID 2852 wrote to memory of 2016 2852 cvtres.exe 33 PID 2852 wrote to memory of 2016 2852 cvtres.exe 33 PID 2852 wrote to memory of 2016 2852 cvtres.exe 33 PID 2852 wrote to memory of 2016 2852 cvtres.exe 33 PID 2852 wrote to memory of 2016 2852 cvtres.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2700 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\INVOICE0987650009.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1760
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2852 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /stext "C:\Users\Admin\AppData\Local\Temp\pkngzyxshnboqebhnrbynwrxpwmh"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1984
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /stext "C:\Users\Admin\AppData\Local\Temp\zetzarimvvttalplxborqjlopkwqbky"3⤵
- Accesses Microsoft Outlook accounts
PID:2452
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /stext "C:\Users\Admin\AppData\Local\Temp\kgyj"3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2016
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
230B
MD58a232fd211a2baeeefd783a660b22468
SHA1fe172d2eae5ba605252e82ca5e263130bc861af7
SHA2563bfcfaadecb0b655a3eda7a516e5c89bca8b2575a39e7f5bd2dff018997bad67
SHA5126e15b13232b2d8df7c1660d906316dfa90406fe90593e31326f63087d265529ab3652721c5a76d4d4bf8b29ee4f927ebb2d88055650669f709a55c6366f5b0d3
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Filesize
144B
MD52749ba00b283da282ed2b1b73d28d7ac
SHA1751f5d26da560ab35a4c1e20c454d25e2351bfed
SHA2569d4de74bc0e535dd4b4c84f7713691dd2fd01c94986d966dcb52d31c7fc2c4da
SHA512965d8c7661586a4b467acac32e9f58bfeef40573cedf23704cc7c4eb9b249f0e52a92fd254373f4e22bc2513e1164227df1ea6dbca4325c251b8cd796b1c54e9
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84