Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
30-08-2024 04:31
Static task
static1
Behavioral task
behavioral1
Sample
a3a1178a681a45c960b0ed5d0c47926b.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
a3a1178a681a45c960b0ed5d0c47926b.exe
Resource
win10v2004-20240802-en
General
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Target
a3a1178a681a45c960b0ed5d0c47926b.exe
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Size
1.0MB
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MD5
a3a1178a681a45c960b0ed5d0c47926b
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SHA1
9048f61cab453a6d4eb6ebae1bd2f913350975d9
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SHA256
f0f335a424d98a48836a01aaa8af90ddaa08667ad3fedc6cea38ab5623c4b713
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SHA512
974b0726a47312b9ecf429d4ba7716e196448655e24775f9443c5cc5b5a3fb790ef917baf30dc0da4907c9298ddff10fd411b806103a261dcc926c0f008ce0e3
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SSDEEP
24576:78+0suO3PuzmSe//zGdg7Vbo11Im2YJAssiWV9w9pTNLo:juO/uzmN/CdSmfUqPx
Malware Config
Extracted
remcos
RemoteHost
23.106.127.79:5679
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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-7VNLX4
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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 3 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
resource yara_rule behavioral2/memory/1852-76-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft behavioral2/memory/4480-75-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral2/memory/3032-82-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft -
NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/1852-76-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/4480-75-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4572 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation a3a1178a681a45c960b0ed5d0c47926b.exe -
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-1-5-21-1194130065-3471212556-1656947724-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts a3a1178a681a45c960b0ed5d0c47926b.exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 5024 set thread context of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 1092 set thread context of 4480 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 98 PID 1092 set thread context of 1852 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 99 PID 1092 set thread context of 3032 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 101 -
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 6 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 a3a1178a681a45c960b0ed5d0c47926b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a3a1178a681a45c960b0ed5d0c47926b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a3a1178a681a45c960b0ed5d0c47926b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a3a1178a681a45c960b0ed5d0c47926b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a3a1178a681a45c960b0ed5d0c47926b.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 4572 powershell.exe 4572 powershell.exe 4480 a3a1178a681a45c960b0ed5d0c47926b.exe 4480 a3a1178a681a45c960b0ed5d0c47926b.exe 3032 a3a1178a681a45c960b0ed5d0c47926b.exe 3032 a3a1178a681a45c960b0ed5d0c47926b.exe 4480 a3a1178a681a45c960b0ed5d0c47926b.exe 4480 a3a1178a681a45c960b0ed5d0c47926b.exe -
Suspicious behavior: MapViewOfSection 4 IoCs
pid Process 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 1092 a3a1178a681a45c960b0ed5d0c47926b.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 5024 a3a1178a681a45c960b0ed5d0c47926b.exe Token: SeDebugPrivilege 4572 powershell.exe Token: SeDebugPrivilege 3032 a3a1178a681a45c960b0ed5d0c47926b.exe -
Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 5024 wrote to memory of 4572 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 94 PID 5024 wrote to memory of 4572 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 94 PID 5024 wrote to memory of 4572 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 94 PID 5024 wrote to memory of 2124 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 96 PID 5024 wrote to memory of 2124 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 96 PID 5024 wrote to memory of 2124 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 96 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 5024 wrote to memory of 1092 5024 a3a1178a681a45c960b0ed5d0c47926b.exe 97 PID 1092 wrote to memory of 4480 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 98 PID 1092 wrote to memory of 4480 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 98 PID 1092 wrote to memory of 4480 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 98 PID 1092 wrote to memory of 4480 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 98 PID 1092 wrote to memory of 1852 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 99 PID 1092 wrote to memory of 1852 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 99 PID 1092 wrote to memory of 1852 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 99 PID 1092 wrote to memory of 1852 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 99 PID 1092 wrote to memory of 3284 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 100 PID 1092 wrote to memory of 3284 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 100 PID 1092 wrote to memory of 3284 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 100 PID 1092 wrote to memory of 3032 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 101 PID 1092 wrote to memory of 3032 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 101 PID 1092 wrote to memory of 3032 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 101 PID 1092 wrote to memory of 3032 1092 a3a1178a681a45c960b0ed5d0c47926b.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe"C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5024 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4572
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C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe"C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe"2⤵PID:2124
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C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe"C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1092 -
C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exeC:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe /stext "C:\Users\Admin\AppData\Local\Temp\jttlisgibplallpisdcz"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4480
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C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exeC:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe /stext "C:\Users\Admin\AppData\Local\Temp\uvhejcrcpxdfozmmbopsceyg"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
PID:1852
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C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exeC:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe /stext "C:\Users\Admin\AppData\Local\Temp\epmpkvbddfvkyfaqszjufrtxeyf"3⤵PID:3284
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C:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exeC:\Users\Admin\AppData\Local\Temp\a3a1178a681a45c960b0ed5d0c47926b.exe /stext "C:\Users\Admin\AppData\Local\Temp\epmpkvbddfvkyfaqszjufrtxeyf"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3032
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
4KB
MD5ea01dd92b15d2f570f6b167dad2d1fd0
SHA17b89141d4c3eb2f29d096f28a9bfe66eb006224a
SHA2560515f49138d74283f9ac1042fd1a384f715b74c2b99193454dbb0cd585097727
SHA5120e7695aea30250a41829fa4abb681b8c3ed4c0955e18f1f9f3a5456bfb3a76f016f538e557bf29b99ab6ab48c846f9fa3c4bccd8cb5fe73099a81b5946029ec8