Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
05/06/2024, 14:48
General
- Target d051eec657d514bae5651244dde24ec0be84444e894b48bd0fb3f76e851508f1.exe
- Size 1.4MB
- Sample240605-r6ecjsaa6x
- SHA256 d051eec657d514bae5651244dde24ec0be84444e894b48bd0fb3f76e851508f1
Malware Config
Extracted
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remcos
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MAY DEVOTION 2024
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pentester0.accesscam.org:56796
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archived.zapto.org:56797
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honeypotresearchteam.duckdns.org:13922
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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
wetransfer.exe
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copy_folder
wetransfer
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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
wetransfer
-
mouse_option
false
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mutex
wetransfer-F4RIT7
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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
- Remcos
Remcos is a closed-source remote control and surveillance software.
- NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 4 IoCs
Password recovery tool for various web browsers
- Nirsoft 10 IoCs
- Executes dropped EXE 4 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Script User-Agent 2 IoCs
Uses user-agent string associated with script host/environment.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\d051eec657d514bae5651244dde24ec0be84444e894b48bd0fb3f76e851508f1.exe"C:\Users\Admin\AppData\Local\Temp\d051eec657d514bae5651244dde24ec0be84444e894b48bd0fb3f76e851508f1.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\extrac32.exeC:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\d051eec657d514bae5651244dde24ec0be84444e894b48bd0fb3f76e851508f1.exe C:\\Users\\Public\\Libraries\\Rzpcyblh.PIF2⤵
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C:\Users\Public\Libraries\hlbycpzR.pifC:\Users\Public\Libraries\hlbycpzR.pif2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Public\Libraries\hlbycpzR.pifC:\Users\Public\Libraries\hlbycpzR.pif /stext "C:\Users\Admin\AppData\Local\Temp\wutkjpvbstnhyca"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
-
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C:\Users\Public\Libraries\hlbycpzR.pifC:\Users\Public\Libraries\hlbycpzR.pif /stext "C:\Users\Admin\AppData\Local\Temp\hoyvkhfugbfmaqxinb"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Public\Libraries\hlbycpzR.pifC:\Users\Public\Libraries\hlbycpzR.pif /stext "C:\Users\Admin\AppData\Local\Temp\rrdnlzqwujxrlxlmwlpox"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
wutkjpvbstnhyca
hlbycpzR.pif
memory/2652-37-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2652-26-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2652-30-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2652-31-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2652-34-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4140-19-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-56-0x000000001B230000-0x000000001B249000-memory.dmp
memory/4140-18-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-67-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-20-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-22-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-66-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-64-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-65-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-63-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-62-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-61-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-60-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-16-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-59-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-12-0x0000000000590000-0x0000000001590000-memory.dmp
memory/4140-58-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-13-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-14-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-17-0x0000000018360000-0x00000000183E2000-memory.dmp
memory/4140-9-0x0000000000590000-0x0000000001590000-memory.dmp
memory/4140-57-0x000000001B230000-0x000000001B249000-memory.dmp
memory/4140-53-0x000000001B230000-0x000000001B249000-memory.dmp
memory/4352-1-0x0000000000400000-0x000000000057D000-memory.dmp
memory/4352-0-0x0000000000B50000-0x0000000000B51000-memory.dmp
memory/4464-38-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4464-44-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4464-45-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4464-47-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4464-46-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4732-32-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4732-36-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4732-29-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4732-33-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4732-23-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4732-50-0x0000000000400000-0x0000000000478000-memory.dmp