Analysis
- max time kernel
141s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
22/01/2024, 14:18
Static task
static1
Behavioral task
behavioral1
Sample
SCAN_DSC0027929829.PDF..exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
SCAN_DSC0027929829.PDF..exe
Resource
win10v2004-20231215-en
General
- Target SCAN_DSC0027929829.PDF..exe
- Size 2.6MB
- Sample240122-rl9myshba7
- SHA256 08d763ba6c1ef0fb1e1774e9050e6eae1e61cd4149dcb5334f6e73e9afb6cff3
- MD5 e2994fd1d2f56f8352ebf4d30b221d8f
- SHA1 8082ac7548eaf7264884c4295e0c1f272c0700d4
- SHA512 18fc45564a049952f8aa9aef1e3c243ac0889d2295ea3716feea2277cccf8b32678da8ef6fa256668cbc2ad17d8eec5f2245d640a8dde06e28bbfd71e8d968a2
- SSDEEP 49152:xDWu2Avcfk5wAQaEOsA7M0enZFcZrABL:xyu9uFK0x
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
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remcos
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RemoteHost
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127.0.0.1:45671
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127.0.0.1:55677
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192.3.101.8:55677
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192.3.101.8:45671
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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
-
mutex
Rmc-2P1XPK
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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
-
take_screenshot_time
5
Signatures
- ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
- ModiLoader Second Stage 1 IoCs
resource yara_rule behavioral2/memory/3104-2-0x00000000050B0000-0x00000000060B0000-memory.dmp modiloader_stage2 - NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/2756-83-0x0000000000400000-0x0000000000457000-memory.dmp MailPassView behavioral2/memory/2756-85-0x0000000000400000-0x0000000000457000-memory.dmp MailPassView behavioral2/memory/2756-90-0x0000000000400000-0x0000000000457000-memory.dmp MailPassView - NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/3488-82-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/3488-93-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView - Nirsoft 7 IoCs
resource yara_rule behavioral2/memory/2756-83-0x0000000000400000-0x0000000000457000-memory.dmp Nirsoft behavioral2/memory/2756-85-0x0000000000400000-0x0000000000457000-memory.dmp Nirsoft behavioral2/memory/4332-89-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/2756-90-0x0000000000400000-0x0000000000457000-memory.dmp Nirsoft behavioral2/memory/4332-91-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/3488-82-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/3488-93-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft - Creates new service(s) 1 TTPs
- Executes dropped EXE 2 IoCs
pid Process 4484 easinvoker.exe 1624 easinvoker.exe - Loads dropped DLL 2 IoCs
pid Process 4484 easinvoker.exe 1624 easinvoker.exe - Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts SndVol.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Aiutyldm = "C:\\Users\\Public\\Aiutyldm.url" SCAN_DSC0027929829.PDF..exe - Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 3664 set thread context of 3488 3664 SndVol.exe 123 PID 3664 set thread context of 2756 3664 SndVol.exe 125 PID 3664 set thread context of 4332 3664 SndVol.exe 124 - Launches sc.exe 2 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 1864 sc.exe 3056 sc.exe - Program crash 1 IoCs
pid pid_target Process procid_target 2584 3664 WerFault.exe 120 - Enumerates system info in registry 2 TTPs 4 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier xcopy.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier xcopy.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier xcopy.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier xcopy.exe - Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 22 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 18 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe 4484 easinvoker.exe - Suspicious behavior: LoadsDriver 1 IoCs
pid Process 672 Process not Found - Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 3664 SndVol.exe 3664 SndVol.exe 3664 SndVol.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4752 powershell.exe Token: SeDebugPrivilege 4332 SndVol.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3664 SndVol.exe - Suspicious use of SendNotifyMessage 2 IoCs
pid Process 3664 SndVol.exe 3664 SndVol.exe - Suspicious use of WriteProcessMemory 63 IoCs
description pid Process procid_target PID 3104 wrote to memory of 4372 3104 SCAN_DSC0027929829.PDF..exe 98 PID 3104 wrote to memory of 4372 3104 SCAN_DSC0027929829.PDF..exe 98 PID 3104 wrote to memory of 4372 3104 SCAN_DSC0027929829.PDF..exe 98 PID 4372 wrote to memory of 3392 4372 cmd.exe 100 PID 4372 wrote to memory of 3392 4372 cmd.exe 100 PID 4372 wrote to memory of 3392 4372 cmd.exe 100 PID 4372 wrote to memory of 4792 4372 cmd.exe 102 PID 4372 wrote to memory of 4792 4372 cmd.exe 102 PID 4372 wrote to memory of 4792 4372 cmd.exe 102 PID 4372 wrote to memory of 4992 4372 cmd.exe 103 PID 4372 wrote to memory of 4992 4372 cmd.exe 103 PID 4372 wrote to memory of 4992 4372 cmd.exe 103 PID 4372 wrote to memory of 3256 4372 cmd.exe 104 PID 4372 wrote to memory of 3256 4372 cmd.exe 104 PID 4372 wrote to memory of 3256 4372 cmd.exe 104 PID 4372 wrote to memory of 784 4372 cmd.exe 105 PID 4372 wrote to memory of 784 4372 cmd.exe 105 PID 4372 wrote to memory of 784 4372 cmd.exe 105 PID 4372 wrote to memory of 3780 4372 cmd.exe 106 PID 4372 wrote to memory of 3780 4372 cmd.exe 106 PID 4372 wrote to memory of 3780 4372 cmd.exe 106 PID 4372 wrote to memory of 3984 4372 cmd.exe 107 PID 4372 wrote to memory of 3984 4372 cmd.exe 107 PID 4372 wrote to memory of 3984 4372 cmd.exe 107 PID 4372 wrote to memory of 804 4372 cmd.exe 108 PID 4372 wrote to memory of 804 4372 cmd.exe 108 PID 4372 wrote to memory of 804 4372 cmd.exe 108 PID 4372 wrote to memory of 1748 4372 cmd.exe 109 PID 4372 wrote to memory of 1748 4372 cmd.exe 109 PID 4372 wrote to memory of 1748 4372 cmd.exe 109 PID 4372 wrote to memory of 4484 4372 cmd.exe 110 PID 4372 wrote to memory of 4484 4372 cmd.exe 110 PID 4484 wrote to memory of 4296 4484 easinvoker.exe 111 PID 4484 wrote to memory of 4296 4484 easinvoker.exe 111 PID 4296 wrote to memory of 2500 4296 cmd.exe 113 PID 4296 wrote to memory of 2500 4296 cmd.exe 113 PID 4296 wrote to memory of 1864 4296 cmd.exe 114 PID 4296 wrote to memory of 1864 4296 cmd.exe 114 PID 4296 wrote to memory of 3056 4296 cmd.exe 116 PID 4296 wrote to memory of 3056 4296 cmd.exe 116 PID 2500 wrote to memory of 4752 2500 cmd.exe 117 PID 2500 wrote to memory of 4752 2500 cmd.exe 117 PID 3104 wrote to memory of 1056 3104 SCAN_DSC0027929829.PDF..exe 118 PID 3104 wrote to memory of 1056 3104 SCAN_DSC0027929829.PDF..exe 118 PID 3104 wrote to memory of 1056 3104 SCAN_DSC0027929829.PDF..exe 118 PID 3104 wrote to memory of 3664 3104 SCAN_DSC0027929829.PDF..exe 120 PID 3104 wrote to memory of 3664 3104 SCAN_DSC0027929829.PDF..exe 120 PID 3104 wrote to memory of 3664 3104 SCAN_DSC0027929829.PDF..exe 120 PID 1056 wrote to memory of 1624 1056 cmd.exe 121 PID 1056 wrote to memory of 1624 1056 cmd.exe 121 PID 3104 wrote to memory of 3664 3104 SCAN_DSC0027929829.PDF..exe 120 PID 3664 wrote to memory of 3488 3664 SndVol.exe 123 PID 3664 wrote to memory of 3488 3664 SndVol.exe 123 PID 3664 wrote to memory of 3488 3664 SndVol.exe 123 PID 3664 wrote to memory of 3488 3664 SndVol.exe 123 PID 3664 wrote to memory of 2756 3664 SndVol.exe 125 PID 3664 wrote to memory of 2756 3664 SndVol.exe 125 PID 3664 wrote to memory of 2756 3664 SndVol.exe 125 PID 3664 wrote to memory of 2756 3664 SndVol.exe 125 PID 3664 wrote to memory of 4332 3664 SndVol.exe 124 PID 3664 wrote to memory of 4332 3664 SndVol.exe 124 PID 3664 wrote to memory of 4332 3664 SndVol.exe 124 PID 3664 wrote to memory of 4332 3664 SndVol.exe 124
Processes
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C:\Users\Admin\AppData\Local\Temp\SCAN_DSC0027929829.PDF..exe"C:\Users\Admin\AppData\Local\Temp\SCAN_DSC0027929829.PDF..exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3104 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\AiutyldmO.bat" "2⤵
- Suspicious use of WriteProcessMemory
PID:4372 -
C:\Windows\SysWOW64\cmd.execmd /c mkdir "\\?\C:\Windows "3⤵PID:3392
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" ECHO F"3⤵PID:4792
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C:\Windows\SysWOW64\xcopy.exexcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y3⤵
- Enumerates system info in registry
PID:4992
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" ECHO F"3⤵PID:3256
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C:\Windows\SysWOW64\xcopy.exexcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y3⤵
- Enumerates system info in registry
PID:784
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" ECHO F"3⤵PID:3780
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C:\Windows\SysWOW64\xcopy.exexcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y3⤵
- Enumerates system info in registry
PID:3984
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" ECHO F"3⤵PID:804
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C:\Windows\SysWOW64\xcopy.exexcopy "x.bat" "C:\Windows \System32\" /K /D /H /Y3⤵
- Enumerates system info in registry
PID:1748
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C:\Windows \System32\easinvoker.exe"C:\\Windows \\System32\\easinvoker.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4484 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""4⤵
- Suspicious use of WriteProcessMemory
PID:4296 -
C:\Windows\system32\cmd.execmd /c powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"5⤵
- Suspicious use of WriteProcessMemory
PID:2500 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"6⤵
- Suspicious use of AdjustPrivilegeToken
PID:4752
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C:\Windows\system32\sc.exesc.exe create truesight binPath="C:\Users\Public\Libraries\truesight.sys" type=kernel5⤵
- Launches sc.exe
PID:1864
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C:\Windows\system32\sc.exesc.exe start truesight5⤵
- Launches sc.exe
PID:3056
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C:\Windows\SysWOW64\cmd.execmd /c "C:\\Windows \\System32\\easinvoker.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1056 -
C:\Windows \System32\easinvoker.exe"C:\\Windows \\System32\\easinvoker.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1624
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C:\Windows\SysWOW64\SndVol.exeC:\Windows\System32\SndVol.exe2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3664 -
C:\Windows\SysWOW64\SndVol.exeC:\Windows\SysWOW64\SndVol.exe /stext "C:\Users\Admin\AppData\Local\Temp\eaqluddfdwqryycyb"3⤵PID:3488
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C:\Windows\SysWOW64\SndVol.exeC:\Windows\SysWOW64\SndVol.exe /stext "C:\Users\Admin\AppData\Local\Temp\rwaovgyafmablkmgbkewejwp"3⤵
- Suspicious use of AdjustPrivilegeToken
PID:4332
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C:\Windows\SysWOW64\SndVol.exeC:\Windows\SysWOW64\SndVol.exe /stext "C:\Users\Admin\AppData\Local\Temp\pcveuwozreiwaeyckardb"3⤵
- Accesses Microsoft Outlook accounts
PID:2756
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3664 -s 18043⤵
- Program crash
PID:2584
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3664 -ip 36641⤵PID:1760
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r2pzelyu.1xv.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\eaqluddfdwqryycyb
- Size 4KB
- SHA256 ce5000909571aef49b782e23e9723bc68c9d8a9dc1e7b56374885da71851bb64
- MD5 3681164a9bab3b641febe410d6818901
- SHA1 05b98c7891e31da671b83ec9d1ffcb9c0dbf1228
- SHA512 8161b45baee4d27b54ed37b90b0db2d3b34bb88d5767982e2c14fac1e7da72fa9d1f3f1de86bd45519c131f97ced8640c62ebfe83af8b25b08430986d83f3030
- SSDEEP 48:wvvv0NwxfvvcNwxfdvv0NwxBvv0Nwxakvv0Nw7:mvrxvjp1vrPvrbvr7
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Public\Libraries\AiutyldmO.bat
- Size 404B
- SHA256 0bfe311ffb1de96cbb2616c2a59c2a1a4942ec03073cc2ddfdfc43f79c74d18a
- MD5 6880148d6cd8fabdce94b7e91dbd8d17
- SHA1 870e9ad13355a8452746e0904d004ee8c8ec66e5
- SHA512 810ee2896597cbcf813b9285bb2d7f9127360a4d8a872c47460d32710fe114c27ed58f840dc8bcfdaf7b826e7e46c78c0e814e4fa3d380d10737673a1febf38e
- MD5 SHA1 SHA512
- Path C:\Users\Public\Libraries\KDECO.bat
- Size 271B
- SHA256 d1b19b878a3ae98f650843314cc3ef8d681013f6e18e0201cb47a0afa45fc349
- MD5 d62b11dc4dc821ef23260e5b0e74a835
- SHA1 cdff2004cb9ef149f75fae296f50f4fbfefb2e84
- SHA512 27b8292eb318413b965e1c7552165e65f9003d03b15ddc0c5c142420a1a174303f983c268942d7b60c74ac4e8e79e01f83510807fc0c492cabdf4948bc69c625
- MD5 SHA1 SHA512
- Path C:\Users\Public\Libraries\easinvoker.exe
- Size 128KB
- SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
- MD5 231ce1e1d7d98b44371ffff407d68b59
- SHA1 25510d0f6353dbf0c9f72fc880de7585e34b28ff
- SHA512 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
- SSDEEP 3072:zar2xXibKcf5K67+k02XbFbosspwUUgcR:Nibl7+k02XZb9UA
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Public\Libraries\netutils.dll
- Size 114KB
- SHA256 c300a049564eef6d8baa136858f1f6f0779003bd1b566d95689883c6935e2ba6
- MD5 96b99e2a886d816c1b98b018adfe6311
- SHA1 41f2f29bd8f366781ed1387068150eb2789dbbf8
- SHA512 6768632b586123b4b7c452c05b871a2474214a5d7db4a048f7b67bc2cda9dbf87c2efaf18bed86666dc145f948a2edbe3b01949fb75e6a68d813cd18a62ba45a
- SSDEEP 1536:M8ypRiBID3TfyIIXt/9msamG+A5j/oSnKAf0H1Cl7MbiRUiRdI8a9pFpF:M8ypRiK/S/9zG++7nKAf0HfiRdI8khF
- MD5 SHA1 SHA512 SSDEEP