Analysis

  • max time kernel
    140s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    02/08/2024, 21:51

General

  • Target

    872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe

  • Size

    38KB

  • MD5

    af0e1bf231901c5eb7c8eefec5efaa3e

  • SHA1

    6b7d4379be9ed5343a7213461a6166ff03f81d6c

  • SHA256

    872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6

  • SHA512

    293f8252bac31e064e82a2c9a9be1c3cb11e3ec578680cb89a5be6bfc471f1835e7f8322cd482a98ed2001c9ee587f9dc6936c1e12cac5b8183a3ea1168b1077

  • SSDEEP

    768:kk/wI9Mer9KrSa6nh8+yT53QKFIQGAJb0WVui1KgduuLAnbcuyD7U+:X/wI9r9KOao8ZT5AKFJB+WVui1DAnou8

Malware Config

Signatures

  • Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • UPX packed file 2 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe
    "C:\Users\Admin\AppData\Local\Temp\872694eb1cd84ec743f5e3b9362e9c410fa4eb4c50a774a2ac09b190aca2e0d6.exe"
    1⤵
    • Server Software Component: Terminal Services DLL
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    PID:2936
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Helloworld"
    1⤵
      PID:2148
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Helloworld"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\SysWOW64\Helloworld.exe
        C:\Windows\system32\Helloworld.exe "c:\windows\system32\259492952.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2900

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Windows\SysWOW64\259492952.txt

      Filesize

      72KB

      MD5

      c06467ed143ddfcbb01f0550cfac99bb

      SHA1

      8da840a6383a5b152e9ed72c1a1cd8a1ed774264

      SHA256

      7315035a7e4b361b9dc7f60862aa82544e454fb525f533d4739bf5f48d4e12ca

      SHA512

      b2e7b029626ad063a5a94607cff953d98b807b3c2ab258ed20fc6ddf8a65932b8c98f6adbe98bddf80d4bc53820e831c3709b66fcb9390579409e1ba99365788

    • \Windows\SysWOW64\Helloworld.exe

      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/2936-0-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/2936-9-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB