General
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Target
06112024_0951_rA01_278 Check list�pdf.vbs.zip
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Size
8KB
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Sample
241106-lvyn6azqer
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MD5
3e3ae6b34543068ecd92772a5c1eddf0
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SHA1
24e094f1560d162cc3d07d06de6972b8f78421fa
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SHA256
c985838da01a3503762139ed46c050f93b1eb4a2c803ba82f081f382a4a3f2ef
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SHA512
37a86d648640f7ecbf1639a03b0ac85737e1ad9febba75ad5186bd1f08b3db2d65f5660fc5b90fa44a4618c5456cf304501eea332ea831d7cbfc01e2c149f282
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SSDEEP
192:lG8eT6MZsl/TumMJ+FuQUNA5bs6JLlSDiHjxVmWKFwj10RBce:UTjZG/TAJNDGK6JLMDiDxcWKF2IBp
Static task
static1
Behavioral task
behavioral1
Sample
rA01_278 Check list·pdf.vbs
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
rA01_278 Check list·pdf.vbs
Resource
win10v2004-20241007-en
Malware Config
Extracted
remcos
RemoteHost
a458386d9.duckdns.org:3256
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audio_folder
MicRecords
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audio_path
ApplicationPath
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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
true
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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-4EN793
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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
Targets
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Target
rA01_278 Check list·pdf.vbs
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Size
14KB
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MD5
9becd037359f4e017d31dc8ec143ec55
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SHA1
dd98bea234f0b59af645b1a78ee2ca201ad7f1f5
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SHA256
bec952140d46bb6b997483d3f1aba4228d80a943c1a956568754231ff3e668ee
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SHA512
b49ee61f497b0a88f5c182ed97bc5db0da64a04f7154f7aa81be077bbaed7f949fabf02a751da51bd12f600600c622078cfa03c7353bf8fe3e32d71751aa44ea
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SSDEEP
192:QbbM68CG8YWX/+mg0Q9bSu5C1YhhzbmpGSvEX1Dks6Dz4CrZQI57b/25vGFMjw7y:Yb05MFJ/FsQPHoimJHFcMcA
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Remcos family
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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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Uses browser remote debugging
Can be used control the browser and steal sensitive information such as credentials and session cookies.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Accesses Microsoft Outlook accounts
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of NtCreateThreadExHideFromDebugger
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Modify Authentication Process
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Authentication Process
1Modify Registry
3