General
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Target
c9fab624be92feff5e6666dc84c8b1a1fa23d4535f0960806defa8b30817e133
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Size
140KB
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Sample
250328-yxdszssmx8
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MD5
34842ed9c54bd4205d1aa40ebc118310
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SHA1
4cf7b739e561beb0f661fccd25ccc2c28a988410
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SHA256
c9fab624be92feff5e6666dc84c8b1a1fa23d4535f0960806defa8b30817e133
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SHA512
8baafb898697206325f1ae05bda968b2566cfce4366cba51831e55a2f01465bf26aa710e7d4242794e3a52e3e86b47389c78a3e0473086a0571f6323f4896b31
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SSDEEP
3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHVSdC:xP6/M+WLckOBhVmIYmC
Static task
static1
Behavioral task
behavioral1
Sample
c9fab624be92feff5e6666dc84c8b1a1fa23d4535f0960806defa8b30817e133.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c9fab624be92feff5e6666dc84c8b1a1fa23d4535f0960806defa8b30817e133.exe
Resource
win10v2004-20250313-en
Malware Config
Extracted
remcos
1.7 Pro
Host
systemcontrol.ddns.net:45000
systemcontrol2.ddns.net:45000
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audio_folder
audio
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audio_path
%AppData%
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audio_record_time
5
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connect_delay
0
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connect_interval
5
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copy_file
OfficeUpgrade.exe
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copy_folder
OfficeUpgrade
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delete_file
false
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hide_file
true
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hide_keylog_file
true
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install_flag
false
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install_path
%AppData%
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keylog_crypt
true
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keylog_file
Upgrader.dat
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keylog_flag
false
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keylog_folder
Upgrader
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keylog_path
%AppData%
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mouse_option
false
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mutex
req_khauflaoyr
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screens
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screenshot_path
%AppData%
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screenshot_time
1
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startup_value
OfficeUpgrade
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take_screenshot_option
false
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take_screenshot_time
5
Targets
-
-
Target
c9fab624be92feff5e6666dc84c8b1a1fa23d4535f0960806defa8b30817e133
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Size
140KB
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MD5
34842ed9c54bd4205d1aa40ebc118310
-
SHA1
4cf7b739e561beb0f661fccd25ccc2c28a988410
-
SHA256
c9fab624be92feff5e6666dc84c8b1a1fa23d4535f0960806defa8b30817e133
-
SHA512
8baafb898697206325f1ae05bda968b2566cfce4366cba51831e55a2f01465bf26aa710e7d4242794e3a52e3e86b47389c78a3e0473086a0571f6323f4896b31
-
SSDEEP
3072:xPd4n/M+WLcilrpgGH/GwY87mVmIXhIHVSdC:xP6/M+WLckOBhVmIYmC
Score10/10-
Remcos family
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1