Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
30-12-2024 05:09
Static task
static1
Behavioral task
behavioral1
Sample
c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe
Resource
win7-20241010-en
General
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Target
c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe
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Size
1.1MB
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MD5
d961a05e5efceee1b56c46d392c7407f
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SHA1
7d179a2e17b72f02e8480d68a750c7b9c83e3cd1
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SHA256
c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18
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SHA512
15110ae42fe92ba8cb4438c9aea1d20952a78856e8f2c0da7da5913f41b083238674219903589dcecce2c2b65bdd9940e823d291ff840a93429457f80962fdd1
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SSDEEP
24576:r30Vvkk49eS8w0K1CrZOecyCvRChKUmLG2:r344ww0K1CrQecyzRmLG
Malware Config
Extracted
remcos
noon
79.134.225.121:1200
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audio_folder
MicRecords
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audio_path
%AppData%
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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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install_path
%AppData%
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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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keylog_path
%AppData%
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mouse_option
false
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mutex
Remcos-6F12P7
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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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startup_value
Remcos
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take_screenshot_option
false
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take_screenshot_time
5
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take_screenshot_title
notepad;solitaire;
Signatures
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Remcos family
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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 3712 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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3968 set thread context of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 -
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 3 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 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3176 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3712 powershell.exe 3712 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3712 powershell.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2816 vbc.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 3968 wrote to memory of 3712 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 91 PID 3968 wrote to memory of 3712 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 91 PID 3968 wrote to memory of 3712 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 91 PID 3968 wrote to memory of 3176 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 93 PID 3968 wrote to memory of 3176 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 93 PID 3968 wrote to memory of 3176 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 93 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95 PID 3968 wrote to memory of 2816 3968 c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe"C:\Users\Admin\AppData\Local\Temp\c36a27c853f9b925df2fd90972ca2eda0c2bcacbce37eb404b05ca306b731a18.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3968 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FWBWoxNaDhm.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3712
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FWBWoxNaDhm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4541.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3176
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Suspicious use of SetWindowsHookEx
PID:2816
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD50e930f42754b4eb15afedd370088d8e3
SHA19c9f408792a12f9e7d7ec087367f5bb7f459ee6a
SHA256c6e9de42892869224b9bc93daf216ce37ba6ef38134471b45dabad8e0ef005d6
SHA512d27fc2f203ada0a5dc714438b333093598a703bf5bb88d069a050cdb963adf48bd48042d957c9ebf9ccaed07cb20b11b2b437b02a0e793b656b51c63f9d71aa5
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Filesize
144B
MD5d62d1bf0959b0975bcf32ab4d137865b
SHA1c463f0559c7578d2fa5f808b0b892dc6c7dcef15
SHA25659df43c4211535e842f7ae0442d2d2788d52ae25e236ff36db73c465840ec2d4
SHA512b9bff319b35c6922d63c1606f24ee2e40bf970a7a37a94d7f16ea6b0ec1dfc47dc2afd15f58869fb75fe7d59c0c75380f509efd363f564d58759eb48a14c6051