Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
19-04-2024 10:33
Static task
static1
Behavioral task
behavioral1
Sample
b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe
Resource
win10v2004-20240412-en
General
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Target
b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe
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Size
1.1MB
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MD5
111687a32c1b81bc69e1c1f1a8542a73
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SHA1
640c5bab4aac4f0f8d8538747af91144696739f2
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SHA256
b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7
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SHA512
16cdc773fa0a5e2873899a26f7df546de1303abe1f5989acc9c1588fd7cd3d990623512581ee7b7819dd0c7e900f3e1bb28449133dce599c06a7a0c4c7be6f62
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SSDEEP
24576:0JIq+wADGZYx4t/yVrQ9JO85sfip46OV/b7Dujv:eNAXCSfs8V/b7yjv
Malware Config
Extracted
remcos
RemoteHost
newpage44.mywire.org:5010
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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
adode.exe
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copy_folder
Skype
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delete_file
true
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hide_file
true
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hide_keylog_file
false
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install_flag
true
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install_path
%Temp%
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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-3N0E9G
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screenshot_crypt
false
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screenshot_flag
true
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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
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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ModiLoader Second Stage 2 IoCs
Processes:
resource yara_rule behavioral2/memory/4272-2-0x0000000003E70000-0x0000000004E70000-memory.dmp modiloader_stage2 behavioral2/memory/4052-46-0x0000000003DD0000-0x0000000004DD0000-memory.dmp modiloader_stage2 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe -
Deletes itself 1 IoCs
Processes:
adode.exepid process 4052 adode.exe -
Executes dropped EXE 1 IoCs
Processes:
adode.exepid process 4052 adode.exe -
Adds Run key to start application 2 TTPs 5 IoCs
Processes:
b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exeadode.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Tuscpznj = "C:\\Users\\Public\\Tuscpznj.url" b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe Set value (str) \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-3N0E9G = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Skype\\adode.exe\"" b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-3N0E9G = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Skype\\adode.exe\"" b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe Set value (str) \REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-3N0E9G = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Skype\\adode.exe\"" adode.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-3N0E9G = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Skype\\adode.exe\"" adode.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
Processes:
b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe -
Script User-Agent 4 IoCs
Uses user-agent string associated with script host/environment.
Processes:
description flow ioc HTTP User-Agent header 31 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 33 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 44 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) HTTP User-Agent header 45 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
adode.exepid process 4052 adode.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
adode.exepid process 4052 adode.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exedescription pid process target process PID 4272 wrote to memory of 3100 4272 b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe extrac32.exe PID 4272 wrote to memory of 3100 4272 b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe extrac32.exe PID 4272 wrote to memory of 3100 4272 b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe extrac32.exe PID 4272 wrote to memory of 4052 4272 b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe adode.exe PID 4272 wrote to memory of 4052 4272 b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe adode.exe PID 4272 wrote to memory of 4052 4272 b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe adode.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe"C:\Users\Admin\AppData\Local\Temp\b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\extrac32.exeC:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7.exe C:\\Users\\Public\\Libraries\\Tuscpznj.PIF2⤵
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C:\Users\Admin\AppData\Local\Temp\Skype\adode.exe"C:\Users\Admin\AppData\Local\Temp\Skype\adode.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\remcos\logs.datFilesize
144B
MD55ddf5838fca4d18cb783b8013d9af80d
SHA15ce96e4a0598c0ef5fdebc6e0717888c98319330
SHA2561f655bcc7779e630caffcf83b99444f5bd9a5f9e48693a7053a7c4646262af5b
SHA51249d34b2ade67709e927a4a2a4551d42095f6bb11d33d584a9c6a63f94cc17fc12dccdf46180d8fecc74f12d4a84ceedec841cbfd091ed8f3c4d44408620c771f
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C:\Users\Admin\AppData\Local\Temp\Skype\adode.exeFilesize
1.1MB
MD5111687a32c1b81bc69e1c1f1a8542a73
SHA1640c5bab4aac4f0f8d8538747af91144696739f2
SHA256b6ffebdb6981216fcb12a69a18424032169d89e9d8712a64a2f7cb5aa27733b7
SHA51216cdc773fa0a5e2873899a26f7df546de1303abe1f5989acc9c1588fd7cd3d990623512581ee7b7819dd0c7e900f3e1bb28449133dce599c06a7a0c4c7be6f62
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memory/4052-53-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-55-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-84-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-44-0x0000000000660000-0x0000000000661000-memory.dmpFilesize
4KB
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memory/4052-46-0x0000000003DD0000-0x0000000004DD0000-memory.dmpFilesize
16.0MB
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memory/4052-48-0x0000000000400000-0x000000000051F000-memory.dmpFilesize
1.1MB
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memory/4052-49-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-51-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-74-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-73-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-56-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-57-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-58-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-59-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-60-0x0000000016090000-0x0000000017090000-memory.dmpFilesize
16.0MB
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memory/4052-66-0x0000000000660000-0x0000000000661000-memory.dmpFilesize
4KB
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memory/4272-1-0x0000000003E70000-0x0000000004E70000-memory.dmpFilesize
16.0MB
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memory/4272-4-0x0000000000400000-0x000000000051F000-memory.dmpFilesize
1.1MB
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memory/4272-0-0x00000000007B0000-0x00000000007B1000-memory.dmpFilesize
4KB
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memory/4272-2-0x0000000003E70000-0x0000000004E70000-memory.dmpFilesize
16.0MB