Analysis
-
max time kernel
185s -
max time network
182s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
-
submitted
24-11-2022 00:18
General
-
Target
476ae9f56ae458a9feec9a5f59133aee194a5855e4e71b2617355aec225d20cc.exe
-
Size
356KB
-
MD5
168048d4468475733d83da3ebd2de086
-
SHA1
1a6b91f3eaf8a81a5a4a97a45110c77f1d90cadf
-
SHA256
476ae9f56ae458a9feec9a5f59133aee194a5855e4e71b2617355aec225d20cc
-
SHA512
44113b8518ef4c59acc1f690a6dcd5ae8dad4e9878f1f3d7cbaea5952a0bba9b1acc703d9a3f3fa111594fe9aec6054e136efd4e224aba006a6ec3ff278104b5
-
SSDEEP
6144:5Ec0f7XP+g3AGJpWVzunhYrgns+XuCKnvmb7/D263VAPL8R8FUjcWMHu9tmuE79m:R27/XvLWpuhogns+XuCKnvmb7/D263Qq
Malware Config
Extracted
sality
http://89.119.67.154/testo5/
http://kukutrustnet777.info/home.gif
http://kukutrustnet888.info/home.gif
http://kukutrustnet987.info/home.gif
Signatures
-
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
-
Sality
Sality is backdoor written in C++, first discovered in 2003.
-
UAC bypass 3 TTPs 1 IoCs
-
Windows security bypass 2 TTPs 6 IoCs
-
Disables RegEdit via registry modification 1 IoCs
-
Disables Task Manager via registry modification
-
Executes dropped EXE 1 IoCs
-
Modifies Windows Firewall 1 TTPs 1 IoCs
-
UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
-
Windows security modification 2 TTPs 7 IoCs
-
Adds Run key to start application 2 TTPs 54 IoCs
-
Checks whether UAC is enabled 1 TTPs 1 IoCs
-
Drops file in Program Files directory 11 IoCs
-
Drops file in Windows directory 1 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 64 IoCs
-
Suspicious use of SetWindowsHookEx 2 IoCs
-
Suspicious use of WriteProcessMemory 64 IoCs
-
System policy modification 1 TTPs 1 IoCs
Processes
-
C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵
-
C:\Windows\system32\fontdrvhost.exe"fontdrvhost.exe"1⤵
-
C:\Windows\system32\dwm.exe"dwm.exe"1⤵
-
C:\Windows\system32\sihost.exesihost.exe1⤵
-
C:\Windows\system32\taskhostw.exetaskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}1⤵
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc1⤵
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
-
C:\Users\Admin\AppData\Local\Temp\476ae9f56ae458a9feec9a5f59133aee194a5855e4e71b2617355aec225d20cc.exe"C:\Users\Admin\AppData\Local\Temp\476ae9f56ae458a9feec9a5f59133aee194a5855e4e71b2617355aec225d20cc.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- UAC bypass
- Windows security bypass
- Disables RegEdit via registry modification
- Checks computer location settings
- Windows security modification
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
-
C:\Windows\SysWOW64\netsh.exenetsh firewall set opmode disable3⤵
- Modifies Windows Firewall
-
C:\Users\Admin\pbruif.exe"C:\Users\Admin\pbruif.exe"3⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
-
C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE"3⤵
-
C:\Windows\SysWOW64\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE"3⤵
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc1⤵
-
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
-
C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵
-
C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵
-
C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
-
C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
-
C:\Windows\System32\RuntimeBroker.exeC:\Windows\System32\RuntimeBroker.exe -Embedding1⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\pbruif.exeFilesize
356KB
MD5b108d641d8fb7a9b725412ed89fc9f28
SHA14d6600486408c045fb01e32a4f6a42b9e130416c
SHA25663d8f2ba96055a40c93db325fa059510ce7725ee4a7b4d7a658a6f6f1ca2a9ca
SHA512ddec8e34bb3ed1b641df96a2c32ccb14b1df93d7f8a546d1a295aadb7e534a1e5ae292158d27ae3a4a6e351e48e92cc6d670acf003f9e4158a420472d862a523
-
C:\Users\Admin\pbruif.exeFilesize
356KB
MD5b108d641d8fb7a9b725412ed89fc9f28
SHA14d6600486408c045fb01e32a4f6a42b9e130416c
SHA25663d8f2ba96055a40c93db325fa059510ce7725ee4a7b4d7a658a6f6f1ca2a9ca
SHA512ddec8e34bb3ed1b641df96a2c32ccb14b1df93d7f8a546d1a295aadb7e534a1e5ae292158d27ae3a4a6e351e48e92cc6d670acf003f9e4158a420472d862a523
-
memory/616-145-0x0000000000000000-mapping.dmp
-
memory/616-146-0x0000000000CC0000-0x0000000000CD7000-memory.dmpFilesize
92KB
-
memory/2500-136-0x0000000000000000-mapping.dmp
-
memory/2512-137-0x0000000002C20000-0x0000000003C53000-memory.dmpFilesize
16.2MB
-
memory/2512-133-0x0000000002C20000-0x0000000003C53000-memory.dmpFilesize
16.2MB
-
memory/2512-144-0x0000000002C20000-0x0000000003C53000-memory.dmpFilesize
16.2MB
-
memory/2512-132-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
-
memory/2512-149-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
-
memory/4584-147-0x0000000000000000-mapping.dmp
-
memory/4584-148-0x00000000006D0000-0x00000000006E7000-memory.dmpFilesize
92KB
-
memory/4944-138-0x0000000000000000-mapping.dmp
-
memory/4944-143-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB
-
memory/4944-150-0x0000000000400000-0x000000000045A000-memory.dmpFilesize
360KB