Analysis

  • max time kernel
    140s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-01-2024 16:18

General

  • Target

    74f37fe4cd2c65109465b9998183a657.exe

  • Size

    96KB

  • MD5

    74f37fe4cd2c65109465b9998183a657

  • SHA1

    9419ff643ebd890e108c2732a40f9b3628b35a71

  • SHA256

    4e84e2831364f0a0b9c7d552e58b9706d0de6fae139942207af33f515dcae40b

  • SHA512

    95651b579b497f8a3f4b0eb42f90bd8a722a50b38e3b6c22133ae2390e68bad21d74f7fdc4a45fc43c8aa798c5775e87bf6cb20a6e1ed9c7e80ecb9b302b4a81

  • SSDEEP

    1536:TE6gioIKlNjVMa3kWq46O4ont1jlZikJ4EjkBYCBsiq5u4CzUahE7jwaaHw7Kojw:IEra3kWtfnt1xZiYGBrqJI5U5jwaaHwm

Malware Config

Signatures

  • Kinsing

    Kinsing is a loader written in Golang.

  • Ramnit

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

  • 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).

  • Program crash 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74f37fe4cd2c65109465b9998183a657.exe
    "C:\Users\Admin\AppData\Local\Temp\74f37fe4cd2c65109465b9998183a657.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3908
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:1520
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1520 -s 208
          3⤵
          • Program crash
          PID:1180
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:492
        • C:\Program Files\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3300
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3300 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2792
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3300 CREDAT:82948 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:3248
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        2⤵
          PID:2536
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2536 -s 204
            3⤵
            • Program crash
            PID:4992
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2144
          • C:\Program Files\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
            3⤵
            • Modifies Internet Explorer settings
            PID:1668
        • C:\Users\Admin\AppData\Local\Temp\memsdiuewkoisjiv.exe
          "C:\Users\Admin\AppData\Local\Temp\memsdiuewkoisjiv.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:4148
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1520 -ip 1520
        1⤵
          PID:2952
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2536 -ip 2536
          1⤵
            PID:1372

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            Filesize

            471B

            MD5

            1d7f25dc2d6699e79619c31ff8908f6c

            SHA1

            de3c1be6c3f3e7f6eadbe715ae575794e5bf1221

            SHA256

            845c8a47772a9c534cf13a177c83c40db250a6dbbd0a369401ea884b8d058d6e

            SHA512

            7a6e1765a31821e79b766ea0675ed17d735a40766d5fcd6cc305a8d33b8257d11e492d4ad8626f2909e1c2c2d93e8d04ed133effd0a3ec29324ec3ca36a22a1e

          • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
            Filesize

            404B

            MD5

            802bcf411fe371f20072c9f15b7ffdbf

            SHA1

            8225c90d8a4544e167452423e06fe5b1d3181c0e

            SHA256

            ef61570c93b0ee4c7ed5a0e5d7dae2cfdb5c0c9ca9e73d80dc569fe49dd75bed

            SHA512

            065713b2c8ed9685803110ed1aa103de5195c4165de1e91df4e7659c9914ba5497e8cf0385a27208fa86dd5777735a6059579877ccee56582ff97a78278100a7

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M8F18HYR\suggestions[1].en-US
            Filesize

            17KB

            MD5

            5a34cb996293fde2cb7a4ac89587393a

            SHA1

            3c96c993500690d1a77873cd62bc639b3a10653f

            SHA256

            c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

            SHA512

            e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

          • C:\Users\Admin\AppData\Local\Temp\memsdiuewkoisjiv.exe
            Filesize

            96KB

            MD5

            74f37fe4cd2c65109465b9998183a657

            SHA1

            9419ff643ebd890e108c2732a40f9b3628b35a71

            SHA256

            4e84e2831364f0a0b9c7d552e58b9706d0de6fae139942207af33f515dcae40b

            SHA512

            95651b579b497f8a3f4b0eb42f90bd8a722a50b38e3b6c22133ae2390e68bad21d74f7fdc4a45fc43c8aa798c5775e87bf6cb20a6e1ed9c7e80ecb9b302b4a81

          • memory/1520-8-0x0000000001020000-0x0000000001021000-memory.dmp
            Filesize

            4KB

          • memory/1520-9-0x0000000001000000-0x0000000001001000-memory.dmp
            Filesize

            4KB

          • memory/3908-16-0x0000000000400000-0x000000000043A1A8-memory.dmp
            Filesize

            232KB

          • memory/3908-31-0x0000000000400000-0x000000000043A1A8-memory.dmp
            Filesize

            232KB

          • memory/3908-10-0x0000000000400000-0x000000000043A1A8-memory.dmp
            Filesize

            232KB

          • memory/3908-12-0x00000000008E0000-0x00000000008E2000-memory.dmp
            Filesize

            8KB

          • memory/3908-0-0x0000000000400000-0x000000000043A1A8-memory.dmp
            Filesize

            232KB

          • memory/3908-18-0x0000000077402000-0x0000000077403000-memory.dmp
            Filesize

            4KB

          • memory/3908-5-0x0000000000900000-0x0000000000901000-memory.dmp
            Filesize

            4KB

          • memory/3908-6-0x0000000077402000-0x0000000077403000-memory.dmp
            Filesize

            4KB

          • memory/3908-1-0x0000000000400000-0x000000000043A1A8-memory.dmp
            Filesize

            232KB

          • memory/3908-2-0x00000000008E0000-0x00000000008E2000-memory.dmp
            Filesize

            8KB

          • memory/3908-4-0x00000000008F0000-0x00000000008F1000-memory.dmp
            Filesize

            4KB

          • memory/4148-39-0x0000000000400000-0x000000000043A1A8-memory.dmp
            Filesize

            232KB

          • memory/4148-37-0x0000000000480000-0x0000000000482000-memory.dmp
            Filesize

            8KB

          • memory/4148-36-0x0000000000400000-0x000000000043A1A8-memory.dmp
            Filesize

            232KB