Windows 7 deprecation
Windows 7 will be removed from tria.ge on 2025-03-31
Analysis
-
max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
08/08/2024, 13:54
Static task
static1
Behavioral task
behavioral1
Sample
TaxDocuments.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
TaxDocuments.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
msimg32.dll
Resource
win7-20240729-en
Behavioral task
behavioral4
Sample
msimg32.dll
Resource
win10v2004-20240802-en
General
-
Target
msimg32.dll
-
Size
2.0MB
-
MD5
76ee9007534b3b29067359f75b3e6796
-
SHA1
a2f76600ea6f9c62ea14e2ee0298d35901f757de
-
SHA256
fb0baf9e8ba136ea0c99e40f313f320f6715e47f5b947bcc0d1d2b8ce4ddeb9c
-
SHA512
d13f6befde057b1b0009d57ef7dc01978efde365a7427c2eea1b9708a2128b905af96600b6ac9d947f36b6399c6c170ea0e57c30dae8eaf07b8a21561861bbae
-
SSDEEP
24576:GoI7IMF8xqQ5Ygi0k+KieSp5Qm23cvJTnM5fMG52MRpwnQZ2o67axBCMAFvEq0cf:H55p1wTHyQhBCMsvEqyeBiDw0uJzkiai
Malware Config
Extracted
remcos
RemoteHost
privmerkt.com:6042
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-BMG9AW
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
-
Blocklisted process makes network request 2 IoCs
flow pid Process 18 444 rundll32.exe 21 444 rundll32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\*ChromeUpdate = "rundll32.exe C:\\Users\\Admin\\Documents\\FirefoxData.dll,EntryPoint" reg.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 2776 rundll32.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 3556 wrote to memory of 2776 3556 rundll32.exe 83 PID 3556 wrote to memory of 2776 3556 rundll32.exe 83 PID 3556 wrote to memory of 2776 3556 rundll32.exe 83 PID 2776 wrote to memory of 444 2776 rundll32.exe 87 PID 2776 wrote to memory of 444 2776 rundll32.exe 87 PID 2776 wrote to memory of 444 2776 rundll32.exe 87 PID 2776 wrote to memory of 444 2776 rundll32.exe 87 PID 2776 wrote to memory of 444 2776 rundll32.exe 87 PID 2776 wrote to memory of 444 2776 rundll32.exe 87 PID 2776 wrote to memory of 1480 2776 rundll32.exe 88 PID 2776 wrote to memory of 1480 2776 rundll32.exe 88 PID 2776 wrote to memory of 1480 2776 rundll32.exe 88 PID 1480 wrote to memory of 4804 1480 cmd.exe 90 PID 1480 wrote to memory of 4804 1480 cmd.exe 90 PID 1480 wrote to memory of 4804 1480 cmd.exe 90
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:3556 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#12⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776 -
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe"3⤵
- Blocklisted process makes network request
- System Location Discovery: System Language Discovery
PID:444
-
-
C:\Windows\SysWOW64\cmd.execmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f & exit3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1480 -
C:\Windows\SysWOW64\reg.exereg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f4⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:4804
-
-
-