Analysis

  • max time kernel
    141s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    10-01-2024 02:50

General

  • Target

    4f6160f4cbd3b44f0322111d254e79b9.exe

  • Size

    1.5MB

  • MD5

    4f6160f4cbd3b44f0322111d254e79b9

  • SHA1

    9a6165dabf2fb64f87e5cb30ababc1e4007cec45

  • SHA256

    71699a19ae731f8bd04d1a1e0bf6a4f2cb183fa7b9d116d7280653b28df3354f

  • SHA512

    397e1c97e47eaab500c28946e0cec350b6739bc934ee33e0036f85b09c3735ad8d58e91c547792e63bc0460e37a5ab92131ea2312901f4742eb9cf69d2928ad2

  • SSDEEP

    24576:wteiRa6mUX2nZB0WM0cjukL2f0wt5frvsMZ500VUbQbcjukL2Y:wtbRhmUX87030cakLs0+QMZuwUUcakLj

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f6160f4cbd3b44f0322111d254e79b9.exe
    "C:\Users\Admin\AppData\Local\Temp\4f6160f4cbd3b44f0322111d254e79b9.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1064
    • C:\Users\Admin\AppData\Local\Temp\4f6160f4cbd3b44f0322111d254e79b9.exe
      C:\Users\Admin\AppData\Local\Temp\4f6160f4cbd3b44f0322111d254e79b9.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2828
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\4f6160f4cbd3b44f0322111d254e79b9.exe" /TN BSpsfata099d /F
        3⤵
        • Creates scheduled task(s)
        PID:2852
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN BSpsfata099d > C:\Users\Admin\AppData\Local\Temp\9N1fRyh.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2896
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN BSpsfata099d
          4⤵
            PID:2588

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\9N1fRyh.xml

      Filesize

      1KB

      MD5

      ef5fef357f75f62849b23f9e331bc507

      SHA1

      66c1bbe04392545ffd82d40376603d86468d6e22

      SHA256

      4b9acc3a8eac23074dcf4382f41d176d7e4ed1afcbd5de304c06749836c91205

      SHA512

      1155a08069b47f40816be99af26826814c984f3d1a27016f94445171da32f61ce7f531d565acd4f3f9e9629f54a3488463955595811f5b122ef71f1df8cbb755

    • \Users\Admin\AppData\Local\Temp\4f6160f4cbd3b44f0322111d254e79b9.exe

      Filesize

      1.5MB

      MD5

      da6863ad9410a041bd8d098785e0f9b0

      SHA1

      d812114237a8d7c6f2d33bed035775067b828216

      SHA256

      c206f7f3b0c621bbd20e5db65aa7bd591e643ecbe7b65111caba64a888d73a04

      SHA512

      21357d50b8db8af34e8516a02808bec0beb32eac2aa79866d5584aa34e97e85c8ae8460bc74477d673cd359e57e9a39c45388e9319419c520f8dcf3a159f70aa

    • memory/1064-0-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/1064-2-0x0000000000350000-0x00000000003CE000-memory.dmp

      Filesize

      504KB

    • memory/1064-1-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/1064-15-0x0000000000400000-0x000000000046B000-memory.dmp

      Filesize

      428KB

    • memory/1064-16-0x0000000022F30000-0x000000002318C000-memory.dmp

      Filesize

      2.4MB

    • memory/2828-18-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB

    • memory/2828-20-0x0000000022D90000-0x0000000022E0E000-memory.dmp

      Filesize

      504KB

    • memory/2828-26-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2828-28-0x0000000000470000-0x00000000004DB000-memory.dmp

      Filesize

      428KB

    • memory/2828-53-0x0000000000400000-0x000000000065C000-memory.dmp

      Filesize

      2.4MB