Analysis

  • max time kernel
    142s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18-11-2024 10:58

General

  • Target

    RdpStealer/RdpStealer.exe

  • Size

    762KB

  • MD5

    5316877f3619a1768d3a8025245037c7

  • SHA1

    07b0cf82a54614dc269c441fab8784b06d8722fc

  • SHA256

    b28e21164f744e66c184e343cb85906f6bed8644841c18819b3d3c247ee65d20

  • SHA512

    2644214e119b896fe27b649578956cef2853c0b60404aa26de8d55c2a4ed72d211d13774a815d34c5086e718b5af28a4d7b91c6bcd42a883b303b17020cb89ff

  • SSDEEP

    12288:aMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9sBj:ansJ39LyjbJkQFMhmC+6GD9G

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

  • Xred

    Xred is backdoor written in Delphi.

  • Xred family
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 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 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 2 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RdpStealer\RdpStealer.exe
    "C:\Users\Admin\AppData\Local\Temp\RdpStealer\RdpStealer.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Users\Admin\AppData\Local\Temp\RdpStealer\._cache_RdpStealer.exe
      "C:\Users\Admin\AppData\Local\Temp\RdpStealer\._cache_RdpStealer.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2428
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpDD73.tmp.cmd""
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:468
        • C:\Windows\SysWOW64\timeout.exe
          timeout 4
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:1448
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Users\Admin\AppData\Local\Temp\RdpStealer\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\RdpStealer\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2692
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpDD74.tmp.cmd""
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1264
          • C:\Windows\SysWOW64\timeout.exe
            timeout 4
            5⤵
            • System Location Discovery: System Language Discovery
            • Delays execution with timeout.exe
            PID:2464
  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
    1⤵
    • System Location Discovery: System Language Discovery
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2460

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Synaptics\Synaptics.exe

    Filesize

    762KB

    MD5

    5316877f3619a1768d3a8025245037c7

    SHA1

    07b0cf82a54614dc269c441fab8784b06d8722fc

    SHA256

    b28e21164f744e66c184e343cb85906f6bed8644841c18819b3d3c247ee65d20

    SHA512

    2644214e119b896fe27b649578956cef2853c0b60404aa26de8d55c2a4ed72d211d13774a815d34c5086e718b5af28a4d7b91c6bcd42a883b303b17020cb89ff

  • C:\Users\Admin\AppData\Local\Temp\tmpDD73.tmp.cmd

    Filesize

    164B

    MD5

    9d21e5df8875e2bc3199766e9901c5fb

    SHA1

    27a77d0e657679f3d828365b7b586d9d8b2f33ea

    SHA256

    59962e166ff23bbb194071555230e3c3dde8a7374d22c65e3d989629615bfbb8

    SHA512

    d561b95b6f62d096c7b0f5b949780b6aff13b37ca8908b68d95225ef0638321e5c452a62c546923445112fb4fc299035689863c139a608b47832cf7d064d1633

  • C:\Users\Admin\AppData\Local\Temp\tmpDD74.tmp.cmd

    Filesize

    163B

    MD5

    80042f5dab348927a5be1aa90c215da0

    SHA1

    c6f5ae61755a90b59df17d2596fe7551c296cab6

    SHA256

    92bfd5c81879e098dba31096146e5114fc8d8ea11216f3677eb9fdd3a0335233

    SHA512

    190d51e7510d103474a275ebfdf113a3d15a82627b786747ed34cd8be0ea0462ac94203769d5b9def95049e3e796858576a0e1c826619569c7bd9506d0528123

  • C:\Users\Admin\AppData\Local\Temp\wUbai5Py.xlsm

    Filesize

    17KB

    MD5

    e566fc53051035e1e6fd0ed1823de0f9

    SHA1

    00bc96c48b98676ecd67e81a6f1d7754e4156044

    SHA256

    8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

    SHA512

    a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

  • C:\Users\Admin\AppData\Local\Temp\wUbai5Py.xlsm

    Filesize

    24KB

    MD5

    0408f7ac8b7f34264aaef646d5cc112f

    SHA1

    9031de3fa3752055103c1b7fea2c0fb78239f14b

    SHA256

    cc81c7e1c0745efd17b0e6706c34b9404587082a3ca7c6c51a3bee9a62224ff8

    SHA512

    b720905db9e26d7210223e8e57ca07c1132207e8af49df6d5531517b11773e0af7ce3fca8184cce6308a8882f733e6f40541ad8e50a1a0c9838f9942c4ea4295

  • \Users\Admin\AppData\Local\Temp\RdpStealer\._cache_RdpStealer.exe

    Filesize

    8KB

    MD5

    56f70138199c1b666ccce7d33eca29fe

    SHA1

    61da84bfeb7c9b9582704775f523f5ef9dc866fe

    SHA256

    23f7e75257b27c7458330ecff652f3f1819de6ddeafb4fd1ea1ad383581fad4a

    SHA512

    9e927144298f91a4fa5d224632a8f1d8a88d662c781eec0c09016ce060d01c2a1a550316f9abc9bb107dcf96a5570dee463200981db815347b04ac1108392aee

  • memory/2044-98-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/2044-99-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/2044-105-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/2044-132-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/2204-26-0x0000000000400000-0x00000000004C4000-memory.dmp

    Filesize

    784KB

  • memory/2204-0-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2428-29-0x0000000000100000-0x0000000000108000-memory.dmp

    Filesize

    32KB

  • memory/2460-55-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2692-38-0x00000000001B0000-0x00000000001B8000-memory.dmp

    Filesize

    32KB