Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
25-07-2024 17:04
Static task
static1
Behavioral task
behavioral1
Sample
IAENMAIL-A4-240717-0830-000090912_PDF.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
IAENMAIL-A4-240717-0830-000090912_PDF.exe
Resource
win10v2004-20240709-en
General
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Target
IAENMAIL-A4-240717-0830-000090912_PDF.exe
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Size
2.2MB
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MD5
6c3b88c4675ff6cad62702925a3390f1
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SHA1
d7c0fdc2b3b92df96b5bcd7a390aa7312df086a5
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SHA256
a8e25a2520c09dd71e17afbde126f58514921c6d967a786bde096fafda08701a
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SHA512
ee611d1b240a25a02d8ea9ecca3deb943da34dfcb03a38c2e5d8b40a2cea60d4d4446f968b4af6dc6c9f21bd951b3023e16939ebd1fe0a3fd0867f6a0d143e4a
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SSDEEP
49152:qB1BRf3rOSzOzrFNj8e1KbWF8K7Vk3SZTH4OWOEkw/R8jDYWg16pb67Wy/Zz:aaRrFCI4v7p
Malware Config
Extracted
remcos
RemoteHost
103.198.26.25:96
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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-IPUJM4
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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 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
Processes:
resource yara_rule behavioral1/memory/2044-33-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral1/memory/2508-32-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2412-37-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft -
NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/2044-33-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/2508-32-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
jsc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts jsc.exe -
Suspicious use of SetThreadContext 4 IoCs
Processes:
IAENMAIL-A4-240717-0830-000090912_PDF.exejsc.exedescription pid process target process PID 2372 set thread context of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2712 set thread context of 2508 2712 jsc.exe jsc.exe PID 2712 set thread context of 2044 2712 jsc.exe jsc.exe PID 2712 set thread context of 2412 2712 jsc.exe jsc.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
jsc.exejsc.exejsc.exejsc.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language jsc.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
powershell.exejsc.exepid process 2128 powershell.exe 2508 jsc.exe 2508 jsc.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
Processes:
jsc.exepid process 2712 jsc.exe 2712 jsc.exe 2712 jsc.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exejsc.exedescription pid process Token: SeDebugPrivilege 2128 powershell.exe Token: SeDebugPrivilege 2412 jsc.exe -
Suspicious use of WriteProcessMemory 62 IoCs
Processes:
IAENMAIL-A4-240717-0830-000090912_PDF.exejsc.exedescription pid process target process PID 2372 wrote to memory of 2128 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe powershell.exe PID 2372 wrote to memory of 2128 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe powershell.exe PID 2372 wrote to memory of 2128 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe powershell.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2580 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe msbuild.exe PID 2372 wrote to memory of 2780 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe installutil.exe PID 2372 wrote to memory of 2780 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe installutil.exe PID 2372 wrote to memory of 2780 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe installutil.exe PID 2372 wrote to memory of 2780 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe installutil.exe PID 2372 wrote to memory of 2780 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe installutil.exe PID 2372 wrote to memory of 2780 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe installutil.exe PID 2372 wrote to memory of 2780 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe installutil.exe PID 2372 wrote to memory of 2780 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe installutil.exe PID 2372 wrote to memory of 2632 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe CasPol.exe PID 2372 wrote to memory of 2632 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe CasPol.exe PID 2372 wrote to memory of 2632 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe CasPol.exe PID 2372 wrote to memory of 2632 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe CasPol.exe PID 2372 wrote to memory of 2632 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe CasPol.exe PID 2372 wrote to memory of 2684 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe AddInProcess32.exe PID 2372 wrote to memory of 2684 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe AddInProcess32.exe PID 2372 wrote to memory of 2684 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe AddInProcess32.exe PID 2372 wrote to memory of 2684 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe AddInProcess32.exe PID 2372 wrote to memory of 2684 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe AddInProcess32.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2372 wrote to memory of 2712 2372 IAENMAIL-A4-240717-0830-000090912_PDF.exe jsc.exe PID 2712 wrote to memory of 2508 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2508 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2508 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2508 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2508 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2044 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2044 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2044 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2044 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2044 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2412 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2412 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2412 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2412 2712 jsc.exe jsc.exe PID 2712 wrote to memory of 2412 2712 jsc.exe jsc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\IAENMAIL-A4-240717-0830-000090912_PDF.exe"C:\Users\Admin\AppData\Local\Temp\IAENMAIL-A4-240717-0830-000090912_PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath $env:UserProfile2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2128 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"2⤵PID:2580
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"2⤵PID:2780
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"2⤵PID:2632
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"2⤵PID:2684
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2712 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe /stext "C:\Users\Admin\AppData\Local\Temp\fhathikfaaibwlipzzjazkzgvnfiemf"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2508 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe /stext "C:\Users\Admin\AppData\Local\Temp\qbnmabvzoiaghzwtrkdbkxtpvcprfxekdt"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:2044 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe /stext "C:\Users\Admin\AppData\Local\Temp\sdtwbt"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2412
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84