Analysis

  • max time kernel
    139s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2024 02:15

General

  • Target

    21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe

  • Size

    166KB

  • MD5

    f44302503ea4eedfa831c25711df51b7

  • SHA1

    127d6ec83904de48d90c293e53c905fc4206bfb8

  • SHA256

    21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6

  • SHA512

    71e9512244d864b53abf436b496a53e6771135cc7d5fc0e4df7d04ac23074b6ed1e7438a28bc232a70f57de97367f0e3a21925bed738c5e47bdf3487ab2f4e03

  • SSDEEP

    3072:XdkwdXAqPEHTJJuVqhHjFV2xEEbh9pKP2qYCp65nTGsAeXy0fkd:XmwBAQeVmWHHePH02qYCp6NGsAeXy9d

Malware Config

Extracted

Family

xenorat

C2

87.120.120.27

Mutex

Xeno_rat_nd8912d

Attributes
  • delay

    11000

  • install_path

    appdata

  • port

    2222

  • startup_name

    mrec

Signatures

  • Detect XenoRat Payload 3 IoCs
  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Xenorat family
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 IoCs
  • Suspicious use of SetThreadContext 6 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.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
    "C:\Users\Admin\AppData\Local\Temp\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2172
    • C:\Users\Admin\AppData\Local\Temp\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
      C:\Users\Admin\AppData\Local\Temp\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2404
      • C:\Users\Admin\AppData\Roaming\UpdateManager\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
        "C:\Users\Admin\AppData\Roaming\UpdateManager\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2764
        • C:\Users\Admin\AppData\Roaming\UpdateManager\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
          C:\Users\Admin\AppData\Roaming\UpdateManager\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:2840
        • C:\Users\Admin\AppData\Roaming\UpdateManager\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
          C:\Users\Admin\AppData\Roaming\UpdateManager\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:2644
        • C:\Users\Admin\AppData\Roaming\UpdateManager\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
          C:\Users\Admin\AppData\Roaming\UpdateManager\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:2912
    • C:\Users\Admin\AppData\Local\Temp\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
      C:\Users\Admin\AppData\Local\Temp\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2364
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF882.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:600
    • C:\Users\Admin\AppData\Local\Temp\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
      C:\Users\Admin\AppData\Local\Temp\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2552

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF882.tmp

    Filesize

    1KB

    MD5

    15b109d35e0bd9e3ef94889362098508

    SHA1

    39867e487200da2e73a9bb3474002829b815950f

    SHA256

    f037640a1cef8650dac021fbef884b9bcc8ee46710bff7141140900ec2b1b985

    SHA512

    651970a776abe6ffb7e7e9222f897e568e3fdd94e25e81abaa666366004d33ea7fd4a51e30f30e243e62e41deec3d6cfe02112a0197d085d761d7ef5061b248c

  • C:\Users\Admin\AppData\Roaming\UpdateManager\21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6.exe

    Filesize

    166KB

    MD5

    f44302503ea4eedfa831c25711df51b7

    SHA1

    127d6ec83904de48d90c293e53c905fc4206bfb8

    SHA256

    21b7b8656a008ad3e5df1725cddf55e650812c1f3d59609f14c0d3089a886de6

    SHA512

    71e9512244d864b53abf436b496a53e6771135cc7d5fc0e4df7d04ac23074b6ed1e7438a28bc232a70f57de97367f0e3a21925bed738c5e47bdf3487ab2f4e03

  • memory/2172-5-0x0000000073F40000-0x000000007462E000-memory.dmp

    Filesize

    6.9MB

  • memory/2172-30-0x0000000073F40000-0x000000007462E000-memory.dmp

    Filesize

    6.9MB

  • memory/2172-4-0x00000000002A0000-0x00000000002A6000-memory.dmp

    Filesize

    24KB

  • memory/2172-1-0x0000000000A60000-0x0000000000A8E000-memory.dmp

    Filesize

    184KB

  • memory/2172-3-0x00000000005B0000-0x00000000005E2000-memory.dmp

    Filesize

    200KB

  • memory/2172-2-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2172-0-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

    Filesize

    4KB

  • memory/2364-48-0x0000000073F40000-0x000000007462E000-memory.dmp

    Filesize

    6.9MB

  • memory/2364-23-0x0000000073F40000-0x000000007462E000-memory.dmp

    Filesize

    6.9MB

  • memory/2364-7-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2364-51-0x0000000073F40000-0x000000007462E000-memory.dmp

    Filesize

    6.9MB

  • memory/2364-52-0x0000000073F40000-0x000000007462E000-memory.dmp

    Filesize

    6.9MB

  • memory/2404-22-0x0000000073F40000-0x000000007462E000-memory.dmp

    Filesize

    6.9MB

  • memory/2404-32-0x0000000073F40000-0x000000007462E000-memory.dmp

    Filesize

    6.9MB

  • memory/2404-9-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2404-11-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2764-31-0x00000000010C0000-0x00000000010EE000-memory.dmp

    Filesize

    184KB