Analysis

  • max time kernel
    141s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/06/2024, 19:49

General

  • Target
    d4f7ce5b6dbc08e933bfbdd4a8581c70_NeikiAnalytics.dll
  • Size 362KB
  • Sample240604-yj2b5ahe2v
  • SHA256 01f153f2f9746be0c5da73e7383fe16d391011141a3bf19aae595550e82dae91
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 8 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 30 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4f7ce5b6dbc08e933bfbdd4a8581c70_NeikiAnalytics.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2920
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d4f7ce5b6dbc08e933bfbdd4a8581c70_NeikiAnalytics.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4000
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:3620
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3844
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3844 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2060
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4000 -s 612
        3⤵
        • Program crash
        PID:3468
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4000 -ip 4000
    1⤵
      PID:788
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1028 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:3996

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 471B
            • SHA256 0b4fca26c5df83e56c2546e73669e4109b001da219915e4b698e64456ae9be03
            • MD5 SHA1 SHA512

            7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            • Size 404B
            • SHA256 7a53fe3929029fbd5e45ce1c0a8329c076303f004bb32dd7e84fb3dbf386df7a
            • MD5 SHA1 SHA512

            suggestions[1].en-US

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\O8VM10HV\suggestions[1].en-US
            • Size 17KB
            • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
            • MD5 SHA1 SHA512 SSDEEP

            rundll32mgr.exe

            • Path C:\Windows\SysWOW64\rundll32mgr.exe
            • Size 88KB
            • SHA256 e6f8a54ed663061527ab46b8e8efc2a0f3c99ae77829c0be0e50eb5b1b48415b
            • MD5 SHA1 SHA512 SSDEEP

            memory/3620-11-0x0000000000400000-0x000000000041A000-memory.dmp

            memory/3620-17-0x0000000077702000-0x0000000077703000-memory.dmp

            memory/3620-10-0x0000000002440000-0x0000000002441000-memory.dmp

            memory/3620-9-0x0000000000400000-0x000000000041A000-memory.dmp

            memory/3620-4-0x0000000000400000-0x0000000000420000-memory.dmp

            memory/3620-13-0x0000000000400000-0x000000000041A000-memory.dmp

            memory/3620-12-0x0000000000400000-0x000000000041A000-memory.dmp

            memory/3620-14-0x0000000000400000-0x000000000041A000-memory.dmp

            memory/3620-15-0x0000000000060000-0x0000000000061000-memory.dmp

            memory/3620-16-0x0000000077702000-0x0000000077703000-memory.dmp

            memory/3620-6-0x0000000000400000-0x000000000041A000-memory.dmp

            memory/3620-7-0x0000000000400000-0x000000000041A000-memory.dmp

            memory/3620-8-0x0000000000400000-0x000000000041A000-memory.dmp

            memory/4000-19-0x0000000075100000-0x0000000075161000-memory.dmp

            memory/4000-0-0x0000000075100000-0x0000000075161000-memory.dmp