General
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Target
FE_50602072400310161019800100024010042047501200000000pdf.zip
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Size
19KB
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Sample
241127-s45bmawkel
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MD5
fa0aa0ea4a2a884f6f791a690b11727d
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SHA1
4ca7ee68e2373a8a4f8f9544732c806708b72d1b
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SHA256
62f66044c416d006f34290ddd35454a2b31e17bea0780553032fc10c2d715b63
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SHA512
28ee3d96eebd384a3b0e716f4c302bdec111becaeb440fc1eb64f28187a408c76e3da1d8718ac6e90ce7f3a826a84d1df7d89e11836f88929d7ddfbc6bdd4977
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SSDEEP
384:L2DWXzmu00H2n21oyERSEUuwXwAU3/uniGNjn61/TzJwM++BHsg77:La4zzIKzELQw3vVGNu1/Tzb++Cw
Static task
static1
Behavioral task
behavioral1
Sample
FE_50602072400310161019800100024010042047501200000000·pdf.vbs
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
FE_50602072400310161019800100024010042047501200000000·pdf.vbs
Resource
win10v2004-20241007-en
Malware Config
Extracted
remcos
RemoteHost
8766e34g8.duckdns.org:3782
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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-93TSMD
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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
FE_50602072400310161019800100024010042047501200000000·pdf.vbs
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Size
33KB
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MD5
d6f45ebf3891c5dbabcc90063267a500
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SHA1
e5943a4dcacd697d58287bf70e45cf054015e881
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SHA256
1bd88defe4347880e470dc8536cab819495a34c4320b1dac9fa4952e730f0962
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SHA512
25952f18ea9a949b745de4822e9a6830ea6c16d643d996db9275f8be7bc10be70a40581b48034be5ebd07720f229b54b38b7effa4e274c9a795314669a388cff
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SSDEEP
768:YNdasoF+ZTskr3M28uNK7Rkc94VhNxLKe9KhZh9H5u7jCx4GVVBXgdrnGu:6dasOaAkrHoNYjbU/z9jQdCu
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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