General
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Target
Urgent Purchase Order (P.O.) No.477764107102024.vbs
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Size
543KB
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Sample
241007-fs4vha1frh
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MD5
50e853b9137996e5f5f8bd0d593381db
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SHA1
3543224a2d2eb10dac5d84695b04c9a708003bf9
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SHA256
1c511019abd39d416b101bf8a29895eadce4ad5371f31558437ccc1567e5d415
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SHA512
75a3d44d27ae2047c50665c874f8ab56198de93b17829653853fe38593eb8bdc6d7d4316f051f00a29acd7f019e157b54630fec9826d94d2d887dc9f0d0e555c
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SSDEEP
1536:fJJJJJJJJJJJJJJJJJLMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMv:F
Static task
static1
Behavioral task
behavioral1
Sample
Urgent Purchase Order (P.O.) No.477764107102024.vbs
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
Urgent Purchase Order (P.O.) No.477764107102024.vbs
Resource
win10v2004-20240802-en
Malware Config
Extracted
https://drive.google.com/uc?export=download&id=
Extracted
Protocol: ftp- Host:
ftp.desckvbrat.com.br - Port:
21 - Username:
desckvbrat1 - Password:
developerpro21578Jp@@
Extracted
remcos
MANIFESTATIONS
janbours92harbu03.duckdns.org:3980
janbours92harbu04.duckdns.org:3981
janbours92harbu007.duckdns.org:3981
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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
true
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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-NACZDT
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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
- startup_value
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take_screenshot_option
false
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take_screenshot_time
5
Targets
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Target
Urgent Purchase Order (P.O.) No.477764107102024.vbs
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Size
543KB
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MD5
50e853b9137996e5f5f8bd0d593381db
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SHA1
3543224a2d2eb10dac5d84695b04c9a708003bf9
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SHA256
1c511019abd39d416b101bf8a29895eadce4ad5371f31558437ccc1567e5d415
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SHA512
75a3d44d27ae2047c50665c874f8ab56198de93b17829653853fe38593eb8bdc6d7d4316f051f00a29acd7f019e157b54630fec9826d94d2d887dc9f0d0e555c
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SSDEEP
1536:fJJJJJJJJJJJJJJJJJLMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMv:F
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Detected Nirsoft tools
Free utilities often used by attackers which can steal passwords, product keys, etc.
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NirSoft MailPassView
Password recovery tool for various email clients
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NirSoft WebBrowserPassView
Password recovery tool for various web browsers
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Blocklisted process makes network request
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Accesses Microsoft Outlook accounts
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Adds Run key to start application
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Indicator Removal: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity.
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of SetThreadContext
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