Analysis

  • max time kernel
    111s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • submitted
    13-09-2024 21:23

General

  • Target

    cb9dc4606ac85050ceec95e649100000N.exe

  • Size

    829KB

  • MD5

    cb9dc4606ac85050ceec95e649100000

  • SHA1

    9398495b08379335b9166ed0a941b0cff6ca429f

  • SHA256

    b1492690bba76715a0b60aacfe75bfb7876f3b7d8f03a5a32172b084be81ba7d

  • SHA512

    4f2d7905205a0fafc09f5f9b8f072baa07d2f3c91d4e176dd785db2089e80d225fe58fb548c58bf01d144cf410b392fa14b50bc4890fab287a3d07e8b65709b2

  • SSDEEP

    12288:DMSApJVYG5lhULyjsb0eOzkv4R7QnvUUilQ35+6G75V9IWhBjvrEH7uc:DnsJ30LyjbJkQFMhmC+6Gb9BrEH79

Malware Config

Extracted

Family

xred

C2

xred.mooo.com

Attributes
  • email

    [email protected]

  • 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

  • Floxif family
  • Floxif, Floodfix

    Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

  • Xred

    Xred is backdoor written in Delphi.

  • Xred family
  • Detects Floxif payload 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 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 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cb9dc4606ac85050ceec95e649100000N.exe
    "C:\Users\Admin\AppData\Local\Temp\cb9dc4606ac85050ceec95e649100000N.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4992
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1476
  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:4976

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Common Files\System\symsrv.dll

    Filesize

    67KB

    MD5

    7574cf2c64f35161ab1292e2f532aabf

    SHA1

    14ba3fa927a06224dfe587014299e834def4644f

    SHA256

    de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

    SHA512

    4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

  • C:\Users\Admin\AppData\Local\Temp\A1D26E2\8A4E1701380.tmp

    Filesize

    753KB

    MD5

    d9167c0e9e27b90a13965cdcdcf05e0c

    SHA1

    cae0b273832c2ae23d4aad128de5f7ac1bfb896f

    SHA256

    93262f54fb78e6b875c2b196dc376fec7f38d1064df02cec5cbade3c55255987

    SHA512

    ae0e9fb3c903e1754a3b23b8d3de48816993a44e2be6cacc87799a59e133d20017d667ca476ccc2e67f228322e815cf87ce1b3f1918114f630f29e98cb6c521e

  • C:\Users\Admin\AppData\Local\Temp\Jg7aTbaM.xlsm

    Filesize

    17KB

    MD5

    e566fc53051035e1e6fd0ed1823de0f9

    SHA1

    00bc96c48b98676ecd67e81a6f1d7754e4156044

    SHA256

    8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

    SHA512

    a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

  • memory/1476-124-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/1476-100-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/1476-96-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/4976-79-0x00007FF9FCF50000-0x00007FF9FCF60000-memory.dmp

    Filesize

    64KB

  • memory/4976-77-0x00007FF9FCF50000-0x00007FF9FCF60000-memory.dmp

    Filesize

    64KB

  • memory/4976-78-0x00007FF9FCF50000-0x00007FF9FCF60000-memory.dmp

    Filesize

    64KB

  • memory/4976-80-0x00007FF9FCF50000-0x00007FF9FCF60000-memory.dmp

    Filesize

    64KB

  • memory/4976-81-0x00007FF9FAB30000-0x00007FF9FAB40000-memory.dmp

    Filesize

    64KB

  • memory/4976-82-0x00007FF9FAB30000-0x00007FF9FAB40000-memory.dmp

    Filesize

    64KB

  • memory/4976-76-0x00007FF9FCF50000-0x00007FF9FCF60000-memory.dmp

    Filesize

    64KB

  • memory/4992-75-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB

  • memory/4992-72-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/4992-4-0x0000000010000000-0x0000000010030000-memory.dmp

    Filesize

    192KB