Analysis
- max time kernel
51s - max time network
37s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
28/12/2024, 19:58
General
- Target f906668bf46889d0a78b4d207ae34a6442b4c98b23055cac9a0715e671ca6b31.exe
- Size 1.0MB
- Sample241228-yp65ka1rer
- SHA256 f906668bf46889d0a78b4d207ae34a6442b4c98b23055cac9a0715e671ca6b31
Malware Config
Extracted
-
xred
-
xred.mooo.com
-
payload_url
http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978
https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download
https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1
http://xred.site50.net/syn/SUpdate.ini
https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download
https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1
http://xred.site50.net/syn/Synaptics.rar
https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download
https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1
http://xred.site50.net/syn/SSLLibrary.dll
Signatures
- StormKitty
StormKitty is an open source info stealer written in C#.
- StormKitty payload 5 IoCs
- Stormkitty family
- Xred
Xred is backdoor written in Delphi.
- Xred family
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops desktop.ini file(s) 6 IoCs
- Looks up external IP address via web service 7 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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.
- Checks processor information in registry 2 TTPs 7 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Modifies registry class 2 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 52 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 8 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f906668bf46889d0a78b4d207ae34a6442b4c98b23055cac9a0715e671ca6b31.exe"C:\Users\Admin\AppData\Local\Temp\f906668bf46889d0a78b4d207ae34a6442b4c98b23055cac9a0715e671ca6b31.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\._cache_f906668bf46889d0a78b4d207ae34a6442b4c98b23055cac9a0715e671ca6b31.exe"C:\Users\Admin\AppData\Local\Temp\._cache_f906668bf46889d0a78b4d207ae34a6442b4c98b23055cac9a0715e671ca6b31.exe"2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\ProgramData\Synaptics\Synaptics.exe"C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate2⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
-
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
Synaptics.exe
Bookmarks.txt
RestoreGet.doc
CloseOpen.ppt
PushEnter.txt
RequestHide.rtf
UndoGet.png
MountInitialize.jpeg
PushWatch.jpeg
Process.txt
._cache_f906668bf46889d0a78b4d207ae34a6442b4c98b23055cac9a0715e671ca6b31.exe
1EA75E00
places.raw
s5mIt5cR.xlsm
tmpA935.tmp.dat
tmpAA50.tmp.dat
tmpAD7E.tmp.dat
Outlook.txt
ConvertToNew.xlsx
NewResize.css
ReadFind.docx
UndoRepair.docx
UnpublishCompress.xlsx
desktop.ini
ConvertFromOpen.pdf
CompressHide.rtf
desktop.ini
My Wallpaper.jpg
WritePop.png
desktop.ini
InstalledSoftware.txt
Screen.png
memory/556-0-0x0000000000810000-0x0000000000811000-memory.dmp
memory/556-130-0x0000000000400000-0x0000000000510000-memory.dmp
memory/1644-269-0x0000000006C80000-0x0000000006CE6000-memory.dmp
memory/2016-132-0x0000000002160000-0x0000000002161000-memory.dmp
memory/2016-726-0x0000000002160000-0x0000000002161000-memory.dmp
memory/2016-725-0x0000000000400000-0x0000000000510000-memory.dmp
memory/2556-552-0x00000000722CE000-0x00000000722CF000-memory.dmp
memory/2556-131-0x00000000722C0000-0x0000000072A70000-memory.dmp
memory/2556-795-0x00000000722C0000-0x0000000072A70000-memory.dmp
memory/2556-112-0x00000000722CE000-0x00000000722CF000-memory.dmp
memory/2556-256-0x00000000067C0000-0x0000000006D64000-memory.dmp
memory/2556-254-0x0000000006170000-0x0000000006202000-memory.dmp
memory/2556-127-0x0000000000430000-0x0000000000486000-memory.dmp
memory/2556-553-0x00000000722C0000-0x0000000072A70000-memory.dmp
memory/3896-247-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp
memory/3896-238-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp
memory/3896-236-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp
memory/3896-237-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp
memory/3896-248-0x00007FF9B7BD0000-0x00007FF9B7BE0000-memory.dmp
memory/3896-255-0x00007FF9B5270000-0x00007FF9B5280000-memory.dmp
memory/3896-271-0x00007FF9B5270000-0x00007FF9B5280000-memory.dmp