Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    05/10/2024, 12:10

General

  • Target
    3c0d44d01b35afec1667164f23098170ee2284e9eab57ea17aed99f5493b9cfeN.dll
  • Size 196KB
  • Sample241005-pcbcpaxdpf
  • SHA256 3c0d44d01b35afec1667164f23098170ee2284e9eab57ea17aed99f5493b9cfe
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 6 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 52 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3c0d44d01b35afec1667164f23098170ee2284e9eab57ea17aed99f5493b9cfeN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1476
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3c0d44d01b35afec1667164f23098170ee2284e9eab57ea17aed99f5493b9cfeN.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1636
        • 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:2660
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2660 CREDAT:275457 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2968
        • 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:2716
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2716 CREDAT:275457 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2536

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 15c4a7ce65da007ca4f15a1aa2730a26efe7daeadbdc52cac115f64d83b3e72e
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 90304bb03f10bbd58222c3d6f9989aa1e9c03a421e6a09a1992bdcaac7821605
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 4eba2afeb97e87883b629f4e6495e02740019b678f2c0a101e8fa5194cc631ed
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 07c1cdcaa20ec07fd689afb8064ea2ad949caab84781df4bbc520e50caa06c23
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 5a5cc4c69631eab3e731841ca1047d13e6e9f671560d381f64f71118cdbc09cd
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 00c58700bce12d6737fe4f96f688ce1f305b794031935055f149db1a724544da
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 f93feca23071601293bdc1c180814769ce609a26616db4291d2d6f317ffe8646
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 a0434e3e183d51606d35feaa5eb2bb0c8023c14563987fda6c3c16e76d2985dc
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 c5d9ff2fa60f8739fdebf83da50029b0a64df133d5365316b53c181e90b060ee
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 04b46f8f66492031ef4da43b57dce34c664072d7920dd4a5454777bd97234164
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 5471dce4b998ac6c5456c09d11e65d78de6a13b2f716a2896f68fa3ec76f8daa
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 e3816c9478498de7802d5e09ef1086dd1f16c979dbe98342029b9a8bf2728548
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 e417849c74130b32cae4d09544fcb1b06a09e61e168c5061038f2ca2a934f1a7
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 a2502ee25cb7e5ed9316baa44c71d69b7765657ae9b545e68695d64f5f957830
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 76f3454b18764335f60c5fa80d4f8e8b034a8fc4b00ec9c88031d8ca555d5a89
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 0a6df4b2586996656b776e6bffac99a0d6e679a186bb5a767054163d3b7fbf72
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 236a4523deec79d384721653e3f108d760b3b26efc5b5f80afb31db581670f23
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 68d48604cbf983a67e4425c1df1f6109fe5b7ae4e7b834333b15b71e7bd594c8
        • MD5 SHA1 SHA512

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 342B
        • SHA256 9dc2e2bba06f66acd0c0744a44195142499bb21137c0398b349d3386f360df45
        • MD5 SHA1 SHA512

        RecoveryStore.{D2F77F21-8312-11EF-9FF1-E28DDE128E91}.dat

        • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{D2F77F21-8312-11EF-9FF1-E28DDE128E91}.dat
        • Size 5KB
        • SHA256 d1ab4fbc131942b1344963f4af29e8482a432ebfe301602a377da90b3ecfb063
        • MD5 SHA1 SHA512 SSDEEP

        Cab1C5A.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Cab1C5A.tmp
        • Size 70KB
        • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
        • MD5 SHA1 SHA512 SSDEEP

        Tar1CF9.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar1CF9.tmp
        • Size 181KB
        • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
        • MD5 SHA1 SHA512 SSDEEP

        rundll32mgr.exe

        • Path \Windows\SysWOW64\rundll32mgr.exe
        • Size 105KB
        • SHA256 54282ec29d4993ed6e9972122cfbb70bba4898a21d527bd9e72a166d7ec2fdc0
        • MD5 SHA1 SHA512 SSDEEP

        memory/1636-16-0x0000000000400000-0x000000000045B000-memory.dmp

        memory/1636-13-0x0000000000260000-0x0000000000261000-memory.dmp

        memory/1636-11-0x0000000000220000-0x0000000000221000-memory.dmp

        memory/1636-15-0x0000000000270000-0x0000000000271000-memory.dmp

        memory/1636-12-0x0000000000400000-0x000000000045B000-memory.dmp

        memory/1636-10-0x0000000000400000-0x000000000045B000-memory.dmp

        memory/1636-18-0x0000000000400000-0x000000000045B000-memory.dmp

        memory/1636-14-0x0000000000400000-0x000000000045B000-memory.dmp

        memory/1956-9-0x0000000000290000-0x00000000002EB000-memory.dmp

        memory/1956-8-0x0000000010000000-0x0000000010032000-memory.dmp