Analysis
- max time kernel
149s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
27/09/2024, 22:27
General
- Target PaymentVolksbankEUR36550Bestellung4500673541.com.exe
- Size 811KB
- Sample240927-2c2k4asgml
- SHA256 bd4499ee1845b2eeadc364b26f6e5891aaa699945a1125e6fcceedaac87f9090
Malware Config
Extracted
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remcos
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RemoteHost
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102.165.14.28:26000
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102.165.14.28:27000
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102.165.14.28:28000
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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
-
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-0V7E34
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screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Detected Nirsoft tools 8 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
- Loads dropped DLL 2 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Drops file in Program Files directory 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PaymentVolksbankEUR36550Bestellung4500673541.com.exe"C:\Users\Admin\AppData\Local\Temp\PaymentVolksbankEUR36550Bestellung4500673541.com.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PaymentVolksbankEUR36550Bestellung4500673541.com.exe"C:\Users\Admin\AppData\Local\Temp\PaymentVolksbankEUR36550Bestellung4500673541.com.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PaymentVolksbankEUR36550Bestellung4500673541.com.exeC:\Users\Admin\AppData\Local\Temp\PaymentVolksbankEUR36550Bestellung4500673541.com.exe /stext "C:\Users\Admin\AppData\Local\Temp\fgiqfemxjprbfwzots"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\PaymentVolksbankEUR36550Bestellung4500673541.com.exeC:\Users\Admin\AppData\Local\Temp\PaymentVolksbankEUR36550Bestellung4500673541.com.exe /stext "C:\Users\Admin\AppData\Local\Temp\panjgwxzxxjohlnaccyrg"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Temp\PaymentVolksbankEUR36550Bestellung4500673541.com.exeC:\Users\Admin\AppData\Local\Temp\PaymentVolksbankEUR36550Bestellung4500673541.com.exe /stext "C:\Users\Admin\AppData\Local\Temp\ausbhphtlfbtrrjetnttrcnqx"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4344,i,10597648459838880772,16562651767759956329,262144 --variations-seed-version --mojo-platform-channel-handle=4176 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
fgiqfemxjprbfwzots
System.dll
memory/744-38-0x0000000001A80000-0x000000000402F000-memory.dmp
memory/744-70-0x0000000034D70000-0x0000000034D89000-memory.dmp
memory/744-74-0x0000000034D70000-0x0000000034D89000-memory.dmp
memory/744-31-0x0000000001A80000-0x000000000402F000-memory.dmp
memory/744-32-0x0000000000820000-0x0000000001A74000-memory.dmp
memory/744-33-0x0000000001A80000-0x000000000402F000-memory.dmp
memory/744-34-0x0000000000820000-0x0000000001A74000-memory.dmp
memory/744-73-0x0000000034D70000-0x0000000034D89000-memory.dmp
memory/1844-52-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1844-50-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1844-56-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1844-57-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1844-58-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2860-46-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2860-67-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2860-42-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2860-44-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4016-29-0x00000000045D0000-0x0000000006B7F000-memory.dmp
memory/4016-39-0x00000000045D0000-0x0000000006B7F000-memory.dmp
memory/4016-30-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4016-28-0x0000000076F21000-0x0000000077041000-memory.dmp
memory/4016-27-0x00000000045D0000-0x0000000006B7F000-memory.dmp
memory/4944-49-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4944-43-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4944-45-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4944-48-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4944-47-0x0000000000400000-0x0000000000462000-memory.dmp