Analysis
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max time kernel
148s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
20-03-2024 02:08
Static task
static1
Behavioral task
behavioral1
Sample
2d7ed09200c40b2f12d11415ea4f46e4b35b03d7e34b11e0e3339dc4e8ed687e.vbs
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2d7ed09200c40b2f12d11415ea4f46e4b35b03d7e34b11e0e3339dc4e8ed687e.vbs
Resource
win10v2004-20240226-en
General
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Target
2d7ed09200c40b2f12d11415ea4f46e4b35b03d7e34b11e0e3339dc4e8ed687e.vbs
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Size
520KB
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MD5
a32d581b0e933298fdad8007f0bc4f48
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SHA1
9ee67035856075573f66028e4694a999e647d744
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SHA256
2d7ed09200c40b2f12d11415ea4f46e4b35b03d7e34b11e0e3339dc4e8ed687e
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SHA512
2da41cbd5eaf178db7cf6d20cac1cafcaca02d042d5661b719ff364831164fe894443bd6bfbf78db7baaa1fae3e70e3795fe74986dd81042f3e67cc50f62ead6
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SSDEEP
12288:/2q1MBozZxA1VEWdNIb/1UYe0kagh//3PBLXgIe:TCBaQOWd81Uakzx/PBLXU
Malware Config
Extracted
remcos
RemoteHost
185.255.114.127:2404
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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-E6UWII
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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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Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 29 IoCs
Processes:
resource yara_rule behavioral1/memory/2548-16-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-17-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-18-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-19-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-22-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-20-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-24-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-25-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-30-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-31-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-29-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-26-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-33-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-32-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-34-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-35-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-37-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-67-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-68-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-76-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-78-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-85-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-86-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-93-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-94-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-101-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-102-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-109-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM behavioral1/memory/2548-110-0x0000000000400000-0x0000000000482000-memory.dmp INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM -
Detects executables built or packed with MPress PE compressor 17 IoCs
Processes:
resource yara_rule behavioral1/memory/1632-41-0x0000000000400000-0x0000000000478000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/336-45-0x0000000000400000-0x0000000000457000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1632-46-0x0000000000400000-0x0000000000478000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1632-47-0x0000000000400000-0x0000000000478000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/336-52-0x0000000000400000-0x0000000000457000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1036-51-0x0000000000400000-0x0000000000424000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/336-55-0x0000000000400000-0x0000000000457000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1036-56-0x0000000000400000-0x0000000000424000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1036-58-0x0000000000400000-0x0000000000424000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1036-59-0x0000000000400000-0x0000000000424000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1632-64-0x0000000000400000-0x0000000000478000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2548-69-0x0000000010000000-0x0000000010019000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/336-70-0x0000000000400000-0x0000000000457000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2548-73-0x0000000010000000-0x0000000010019000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2548-74-0x0000000010000000-0x0000000010019000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2548-75-0x0000000010000000-0x0000000010019000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2548-83-0x0000000010000000-0x0000000010019000-memory.dmp INDICATOR_EXE_Packed_MPress -
Detects executables packed with ConfuserEx Mod 4 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\payload.exe INDICATOR_EXE_Packed_ConfuserEx behavioral1/memory/2552-6-0x0000000000F30000-0x0000000000F96000-memory.dmp INDICATOR_EXE_Packed_ConfuserEx behavioral1/memory/2552-8-0x0000000000D90000-0x0000000000DF6000-memory.dmp INDICATOR_EXE_Packed_ConfuserEx behavioral1/memory/2552-10-0x0000000000200000-0x000000000020A000-memory.dmp INDICATOR_EXE_Packed_ConfuserEx -
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs
Processes:
resource yara_rule behavioral1/memory/336-55-0x0000000000400000-0x0000000000457000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store behavioral1/memory/336-70-0x0000000000400000-0x0000000000457000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store -
Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs
Processes:
resource yara_rule behavioral1/memory/336-55-0x0000000000400000-0x0000000000457000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients behavioral1/memory/336-70-0x0000000000400000-0x0000000000457000-memory.dmp INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/336-55-0x0000000000400000-0x0000000000457000-memory.dmp MailPassView behavioral1/memory/336-70-0x0000000000400000-0x0000000000457000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/1632-47-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral1/memory/1632-64-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Nirsoft 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1632-47-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/336-55-0x0000000000400000-0x0000000000457000-memory.dmp Nirsoft behavioral1/memory/1036-58-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral1/memory/1036-59-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral1/memory/1632-64-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/336-70-0x0000000000400000-0x0000000000457000-memory.dmp Nirsoft -
Executes dropped EXE 1 IoCs
Processes:
payload.exepid process 2552 payload.exe -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
Caspol.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts Caspol.exe -
Suspicious use of SetThreadContext 4 IoCs
Processes:
payload.exeCaspol.exedescription pid process target process PID 2552 set thread context of 2548 2552 payload.exe Caspol.exe PID 2548 set thread context of 1632 2548 Caspol.exe Caspol.exe PID 2548 set thread context of 336 2548 Caspol.exe Caspol.exe PID 2548 set thread context of 1036 2548 Caspol.exe Caspol.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
Caspol.exepid process 1632 Caspol.exe 1632 Caspol.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
Processes:
Caspol.exepid process 2548 Caspol.exe 2548 Caspol.exe 2548 Caspol.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Caspol.exedescription pid process Token: SeDebugPrivilege 1036 Caspol.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Caspol.exepid process 2548 Caspol.exe -
Suspicious use of WriteProcessMemory 32 IoCs
Processes:
WScript.exepayload.exeCaspol.exedescription pid process target process PID 2828 wrote to memory of 2552 2828 WScript.exe payload.exe PID 2828 wrote to memory of 2552 2828 WScript.exe payload.exe PID 2828 wrote to memory of 2552 2828 WScript.exe payload.exe PID 2828 wrote to memory of 2552 2828 WScript.exe payload.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2552 wrote to memory of 2548 2552 payload.exe Caspol.exe PID 2548 wrote to memory of 1632 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 1632 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 1632 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 1632 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 1632 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 336 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 336 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 336 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 336 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 336 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 1036 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 1036 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 1036 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 1036 2548 Caspol.exe Caspol.exe PID 2548 wrote to memory of 1036 2548 Caspol.exe Caspol.exe
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\2d7ed09200c40b2f12d11415ea4f46e4b35b03d7e34b11e0e3339dc4e8ed687e.vbs"1⤵
- Suspicious use of WriteProcessMemory
PID:2828 -
C:\Users\Admin\AppData\Local\Temp\payload.exe"C:\Users\Admin\AppData\Local\Temp\payload.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2552 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2548 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe /stext "C:\Users\Admin\AppData\Local\Temp\xymoemedlasmanltwpebtr"4⤵
- Suspicious behavior: EnumeratesProcesses
PID:1632 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe /stext "C:\Users\Admin\AppData\Local\Temp\htrgewoehikrctzxnarcwwvbx"4⤵
- Accesses Microsoft Outlook accounts
PID:336 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe /stext "C:\Users\Admin\AppData\Local\Temp\knxzfpzyvqcenhvjxlmwhjqsgilvp"4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1036
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
144B
MD576b3629ecbb1184d70e6dcb2510d7d0c
SHA1e48a3b5bbece6db8853d21421a76d33f5d0f9ce8
SHA256e555822cb7227fe33e7b1b7c0dbe72897faa2f28872ede81449190646733f6a4
SHA512f5da975d6c1af69b2200acb3c60cd789027ad56a220ce4ec76e0df4c827fe5e5ef8092da603ce05abda306990aaa1dfd2b29aa964940b5c70c18e9fecda3c660
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Filesize
389KB
MD58c0877c86b2e9d59b74c245c620de3f3
SHA1376b29b5166a8f4b9819e5ed298a801af83e03f9
SHA2562fbab4885cb8c8b53e5afba167f6a7a14293cd2795f198c1435371f2b4f2c3a8
SHA512804db8402855a8628b8744beb4ae562f2da94b3fb7fcf58b0614d741aa4c2460b2f2373f783407c80de03bd098506cfec2aec8b6d4624c2422616592b69ff7a9
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84