General
- Target https://www.dropbox.com/scl/fo/qy2qk79x2gtuwswxjxcla/h?rlkey=9ophpx1zlqaopl8j3d53sf3wi&dl=0
- Sample240327-xsc58add5x
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://www.dropbox.com/scl/fo/qy2qk79x2gtuwswxjxcla/h?rlkey=9ophpx1zlqaopl8j3d53sf3wi&dl=0
Resource
win10v2004-20240226-en
Malware Config
Extracted
-
remcos
-
1.7 Pro
-
Host
-
nickman12-46565.portmap.io:46565
-
nickman12-46565.portmap.io:1735
-
audio_folder
audio
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audio_path
%AppData%
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
5
-
copy_file
Userdata.exe
-
copy_folder
Userdata
-
delete_file
true
-
hide_file
true
-
hide_keylog_file
true
-
install_flag
true
-
install_path
%WinDir%\System32
-
keylog_crypt
true
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
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keylog_path
%WinDir%\System32
-
mouse_option
false
-
mutex
remcos_vcexssuhap
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screens
-
screenshot_path
%AppData%
-
screenshot_time
1
-
startup_value
remcos
-
take_screenshot_option
false
-
take_screenshot_time
5
Targets
-
- Target https://www.dropbox.com/scl/fo/qy2qk79x2gtuwswxjxcla/h?rlkey=9ophpx1zlqaopl8j3d53sf3wi&dl=0
Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
ModiLoader First Stage
Renames multiple (553) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
RevengeRat Executable
Contacts a large (645) amount of remote hosts
This may indicate a network scan to discover remotely running services.
Downloads MZ/PE file
Office macro that triggers on suspicious action
Office document macro which triggers in special circumstances - often malicious.
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Drops startup file
Executes dropped EXE
Adds Run key to start application
Creates a large amount of network flows
This may indicate a network scan to discover remotely running services.
Drops desktop.ini file(s)
Legitimate hosting services abused for malware hosting/C2
Drops file in System32 directory
Suspicious use of SetThreadContext
MITRE ATT&CK Enterprise v15
Privilege 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
1Indicator Removal
2File Deletion
2Modify Registry
3