Analysis
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max time kernel
148s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
02-09-2024 14:07
Behavioral task
behavioral1
Sample
mal.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
mal.exe
Resource
win10v2004-20240802-en
General
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Target
mal.exe
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Size
483KB
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MD5
1f1dbf12b048ad53ceb7b62a1af1d60b
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SHA1
7843bc1228e3037ce39aab2710edf006cdddd919
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SHA256
d3a32f2258bd5eff952576259dd78a6e73f56d52d07783d4fbc3ffd966549950
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SHA512
2d263fecec7680c9647a8217561e6c61aa552c74978970d8cd132c29a3298eaa7b240cbd96e397683d81c4857fc95748389dc744a43d560642962877a5695f09
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SSDEEP
6144:QTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZBAXccrJT4:QTlrYw1RUh3NFn+N5WfIQIjbs/ZBuT4
Malware Config
Extracted
remcos
zynova
jramcos.duckdns.org:14645
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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-I5MYYN
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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 7 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral2/memory/448-14-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/3092-19-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/448-17-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/4460-25-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/3092-15-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/4460-13-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/3092-27-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/4460-25-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral2/memory/4460-13-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/3092-19-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/3092-15-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/3092-27-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts mal.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 4536 set thread context of 3092 4536 mal.exe 94 PID 4536 set thread context of 4460 4536 mal.exe 95 PID 4536 set thread context of 448 4536 mal.exe 96 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mal.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mal.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mal.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mal.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 448 mal.exe 448 mal.exe 3092 mal.exe 3092 mal.exe 3092 mal.exe 3092 mal.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 4536 mal.exe 4536 mal.exe 4536 mal.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 448 mal.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4536 wrote to memory of 3092 4536 mal.exe 94 PID 4536 wrote to memory of 3092 4536 mal.exe 94 PID 4536 wrote to memory of 3092 4536 mal.exe 94 PID 4536 wrote to memory of 4460 4536 mal.exe 95 PID 4536 wrote to memory of 4460 4536 mal.exe 95 PID 4536 wrote to memory of 4460 4536 mal.exe 95 PID 4536 wrote to memory of 448 4536 mal.exe 96 PID 4536 wrote to memory of 448 4536 mal.exe 96 PID 4536 wrote to memory of 448 4536 mal.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\mal.exe"C:\Users\Admin\AppData\Local\Temp\mal.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4536 -
C:\Users\Admin\AppData\Local\Temp\mal.exeC:\Users\Admin\AppData\Local\Temp\mal.exe /stext "C:\Users\Admin\AppData\Local\Temp\lehgnpplgudqmhksxzqoogs"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:3092
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C:\Users\Admin\AppData\Local\Temp\mal.exeC:\Users\Admin\AppData\Local\Temp\mal.exe /stext "C:\Users\Admin\AppData\Local\Temp\whmrnhafucwdpngwgkdprlmwgek"2⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:4460
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C:\Users\Admin\AppData\Local\Temp\mal.exeC:\Users\Admin\AppData\Local\Temp\mal.exe /stext "C:\Users\Admin\AppData\Local\Temp\gbzjoalgqkohztuayuyrcyhfplbhdl"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:448
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4KB
MD51891919175c888ce82e9bd8a047b01ad
SHA1502a6892a5d27ecb791ac5aa6d8586944f540453
SHA256a6c43b4e4b8681cf0ef56c49c730fa77e34dc82db0260253a3ba75039030b9ec
SHA5128bb940050b1abf6c27db133ed446f41e108f670f361ed5102408832ce33d9b87cd0880723441f1632292eeeb0a319c4e0fac0ea659eb55ebe1130cc3e6c776a3