Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-10-2023 12:32

General

  • Target

    48cc9fc3ad0bc5e9acbcbba0ad885dbe_JC.exe

  • Size

    93KB

  • MD5

    48cc9fc3ad0bc5e9acbcbba0ad885dbe

  • SHA1

    90393f99ce7fece0e503ae25e6ec430f66e53368

  • SHA256

    c3a7d085818ce367a04fb2285c82e9b987a04371629111a7689d1703036204d4

  • SHA512

    aed77974912f3cf73063779899e8fcd4f53f12bbcce8d7cc53cf40a5b8b97fe43d08c4950576fc2d056dd5b5f4dfc688f67a6a45e3e98da64c3ee478d65036ce

  • SSDEEP

    1536:iY9jw/dUT62rGdiUOWWrMu8i8N8tz8b8XtP8XtH8XtgU7:iY9CUT62/UOVMu8i8N898b8XN8X98XGg

Score
10/10

Malware Config

Signatures

  • Upatre

    Upatre is a generic malware downloader.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\48cc9fc3ad0bc5e9acbcbba0ad885dbe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\48cc9fc3ad0bc5e9acbcbba0ad885dbe_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1600
    • C:\Users\Admin\AppData\Local\Temp\szgfw.exe
      "C:\Users\Admin\AppData\Local\Temp\szgfw.exe"
      2⤵
      • Executes dropped EXE
      PID:4392
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
    1⤵
      PID:2240
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k UnistackSvcGroup
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1336

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\szgfw.exe

      Filesize

      94KB

      MD5

      36478af47f05280cb6ffe86ddad0f096

      SHA1

      71d87ad08754400938aa67a7a42dc953b13cf487

      SHA256

      6488033d0db2b7bc345f45ab41ad0138060b804a2dbb97bec7fc6ea36f4b124f

      SHA512

      bf1f58b2e83b660f727a2e795d7d24aa50efc6cb2144fb2eccfb20978899986c91215e7d90c79dd1c9d80d3dfc4ddb78fd8f50aeef58d0722a84ad377f52c0f6

    • C:\Users\Admin\AppData\Local\Temp\szgfw.exe

      Filesize

      94KB

      MD5

      36478af47f05280cb6ffe86ddad0f096

      SHA1

      71d87ad08754400938aa67a7a42dc953b13cf487

      SHA256

      6488033d0db2b7bc345f45ab41ad0138060b804a2dbb97bec7fc6ea36f4b124f

      SHA512

      bf1f58b2e83b660f727a2e795d7d24aa50efc6cb2144fb2eccfb20978899986c91215e7d90c79dd1c9d80d3dfc4ddb78fd8f50aeef58d0722a84ad377f52c0f6

    • C:\Users\Admin\AppData\Local\Temp\szgfw.exe

      Filesize

      94KB

      MD5

      36478af47f05280cb6ffe86ddad0f096

      SHA1

      71d87ad08754400938aa67a7a42dc953b13cf487

      SHA256

      6488033d0db2b7bc345f45ab41ad0138060b804a2dbb97bec7fc6ea36f4b124f

      SHA512

      bf1f58b2e83b660f727a2e795d7d24aa50efc6cb2144fb2eccfb20978899986c91215e7d90c79dd1c9d80d3dfc4ddb78fd8f50aeef58d0722a84ad377f52c0f6

    • memory/1336-17-0x000001BBDF0A0000-0x000001BBDF0B0000-memory.dmp

      Filesize

      64KB

    • memory/1336-33-0x000001BBDF1A0000-0x000001BBDF1B0000-memory.dmp

      Filesize

      64KB

    • memory/1336-49-0x000001BBE7510000-0x000001BBE7511000-memory.dmp

      Filesize

      4KB

    • memory/1336-51-0x000001BBE7540000-0x000001BBE7541000-memory.dmp

      Filesize

      4KB

    • memory/1336-52-0x000001BBE7540000-0x000001BBE7541000-memory.dmp

      Filesize

      4KB

    • memory/1336-53-0x000001BBE7650000-0x000001BBE7651000-memory.dmp

      Filesize

      4KB

    • memory/1600-0-0x00000000004D0000-0x00000000004D1000-memory.dmp

      Filesize

      4KB

    • memory/1600-9-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB

    • memory/4392-10-0x0000000000400000-0x000000000041C000-memory.dmp

      Filesize

      112KB