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Analysis
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max time kernel
149s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05/10/2024, 20:31
Static task
static1
Behavioral task
behavioral1
Sample
3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe
Resource
win10v2004-20240802-en
General
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Target
3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe
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Size
1.6MB
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MD5
6b737ec9c99212f82ad21f718d102c07
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SHA1
073666a7026034ab313e573b19f8b32abb85979c
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SHA256
3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591
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SHA512
6d9f2e9f344544e46ff56317c3a0abf4b6ef88f0af7792ad053ae77e3915192f26c2d7b64aced249d84191fc0dd01ba2fd0edb987ff5d195d63e43ef260f47a4
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SSDEEP
24576:FfmMv6Ckr7Mny5QlxdojKM41UJ2FdS/JWhtT2NDH2/fqcLPDMplL3T3W:F3v+7/5Qlxd7WaYchN2QfqcTDMXTm
Malware Config
Extracted
remcos
RemoteHost
45.95.169.124:2404
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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-EWMBFF
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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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Detected Nirsoft tools 7 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral2/memory/5052-30-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/1480-35-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/5052-34-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral2/memory/1480-32-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/3052-33-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/3052-31-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/1480-40-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/3052-33-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView behavioral2/memory/3052-31-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/1480-35-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/1480-32-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView behavioral2/memory/1480-40-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts svchost.exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 1612 set thread context of 3540 1612 3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe 82 PID 3540 set thread context of 1480 3540 svchost.exe 83 PID 3540 set thread context of 3052 3540 svchost.exe 84 PID 3540 set thread context of 5052 3540 svchost.exe 85 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 5052 svchost.exe 5052 svchost.exe 1480 svchost.exe 1480 svchost.exe 1480 svchost.exe 1480 svchost.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
pid Process 1612 3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe 3540 svchost.exe 3540 svchost.exe 3540 svchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5052 svchost.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1612 wrote to memory of 3540 1612 3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe 82 PID 1612 wrote to memory of 3540 1612 3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe 82 PID 1612 wrote to memory of 3540 1612 3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe 82 PID 1612 wrote to memory of 3540 1612 3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe 82 PID 3540 wrote to memory of 1480 3540 svchost.exe 83 PID 3540 wrote to memory of 1480 3540 svchost.exe 83 PID 3540 wrote to memory of 1480 3540 svchost.exe 83 PID 3540 wrote to memory of 1480 3540 svchost.exe 83 PID 3540 wrote to memory of 3052 3540 svchost.exe 84 PID 3540 wrote to memory of 3052 3540 svchost.exe 84 PID 3540 wrote to memory of 3052 3540 svchost.exe 84 PID 3540 wrote to memory of 3052 3540 svchost.exe 84 PID 3540 wrote to memory of 5052 3540 svchost.exe 85 PID 3540 wrote to memory of 5052 3540 svchost.exe 85 PID 3540 wrote to memory of 5052 3540 svchost.exe 85 PID 3540 wrote to memory of 5052 3540 svchost.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe"C:\Users\Admin\AppData\Local\Temp\3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1612 -
C:\Windows\SysWOW64\svchost.exe"C:\Users\Admin\AppData\Local\Temp\3b8887359ad82101a2e050475601c339ae2fab0676712f7dded280e7d52b9591.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3540 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\ndutdinmifgpljivjnqdbnebznipozarl"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1480
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\qxzde"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:3052
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\aamwftjh"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5052
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4KB
MD515e28d82a9ee8a45c10bcf671fef0362
SHA12b126b086a1191cb8b4d444e87781358d51af3a4
SHA256012fbb5f15d52a9560cf0e77fd36837ec2c56aff7a989d31c3d40d4f6df6cf9d
SHA5123dd749523858a54e7e5ededba47d54715c9d5663dd0bd609363de7442436d1f0e924c5e4706e3ac413b79ddb6a18c796cc0ad166b4c87a3a7a6b009ba77fee82