Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220722-en -
resource tags
arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system -
submitted
08-08-2022 19:37
Static task
static1
Behavioral task
behavioral1
Sample
c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe
Resource
win7-20220715-en
Behavioral task
behavioral2
Sample
c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe
Resource
win10v2004-20220722-en
General
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Target
c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe
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Size
1.0MB
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MD5
a2a39d65f598684ac9bdb3a88d85d670
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SHA1
81ae837a631e65953b246b75959873e16c91204b
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SHA256
c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570
-
SHA512
848f6ff70d0d95febd4118dc3a499563274be860b3ca2e210d5d6db16a9be3c7fad9e8a0b65f52634827f1799f024958e4ad55c184ed5f062808c0d59f3bac3f
Malware Config
Extracted
remcos
RemoteHost
www.varshtrade.com: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
notepad
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mouse_option
false
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mutex
notepad-TFQMB3
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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
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Control Panel\International\Geo\Nation c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ragfcr = "C:\\Users\\Public\\Libraries\\rcfgaR.url" c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exepid process 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exedescription pid process target process PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe PID 4060 wrote to memory of 380 4060 c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe printui.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe"C:\Users\Admin\AppData\Local\Temp\c1fb3c03cd371463107058c6c2b3a23b234578fd7df330d85efce4c85bcee570.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\printui.exe"C:\Windows\System32\printui.exe"2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/380-160-0x0000000000000000-mapping.dmp
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memory/380-161-0x0000000050590000-0x000000005061C000-memory.dmpFilesize
560KB
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memory/380-162-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB
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memory/380-163-0x0000000000400000-0x000000000047E000-memory.dmpFilesize
504KB