Overview

overview

9

Static

static

contract s...st.exe

windows7_x64

9

contract s...st.exe

windows10_x64

3

Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    12-07-2020 08:16

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General

  • Target

    contract supply list.exe

  • Size

    311KB

  • MD5

    1c8f2480d5bfe4d9bbe8bc432ccc5c97

  • SHA1

    5ff74ec7bd4d10582ce2c949ade827b1ccb23d21

  • SHA256

    24f64f0f4a0f7b860db4e664e4f4c76a08f20d3490966de4637958bbecc618ac

  • SHA512

    158ec88cc3d9ee15c2a96402e58547bd58896be18cc9502c8e204a21e85e3657cd4d07be03fba888911ff4d26e40b882afbc97ab6d04f8f1a67260205126acfe

Score
9/10

Malware Config

Signatures

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Suspicious use of WriteProcessMemory 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    • Suspicious use of SendNotifyMessage
    PID:1304
    • C:\Users\Admin\AppData\Local\Temp\contract supply list.exe
      "C:\Users\Admin\AppData\Local\Temp\contract supply list.exe"
      2⤵
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetThreadContext
      • Checks BIOS information in registry
      • Suspicious use of WriteProcessMemory
      • Suspicious use of AdjustPrivilegeToken
      PID:240
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RvBHdj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAAAF.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:508
      • C:\Users\Admin\AppData\Local\Temp\contract supply list.exe
        "{path}"
        3⤵
          PID:872
        • C:\Users\Admin\AppData\Local\Temp\contract supply list.exe
          "{path}"
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious behavior: MapViewOfSection
          PID:1052
      • C:\Windows\SysWOW64\autochk.exe
        "C:\Windows\SysWOW64\autochk.exe"
        2⤵
          PID:360
        • C:\Windows\SysWOW64\autofmt.exe
          "C:\Windows\SysWOW64\autofmt.exe"
          2⤵
            PID:1352
          • C:\Windows\SysWOW64\autofmt.exe
            "C:\Windows\SysWOW64\autofmt.exe"
            2⤵
              PID:1324
            • C:\Windows\SysWOW64\autofmt.exe
              "C:\Windows\SysWOW64\autofmt.exe"
              2⤵
                PID:1328
              • C:\Windows\SysWOW64\autofmt.exe
                "C:\Windows\SysWOW64\autofmt.exe"
                2⤵
                  PID:804
                • C:\Windows\SysWOW64\help.exe
                  "C:\Windows\SysWOW64\help.exe"
                  2⤵
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of SetThreadContext
                  • Suspicious use of WriteProcessMemory
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious behavior: MapViewOfSection
                  PID:1612
                  • C:\Windows\SysWOW64\cmd.exe
                    /c del "C:\Users\Admin\AppData\Local\Temp\contract supply list.exe"
                    3⤵
                    • Deletes itself
                    PID:1580

              Network

              MITRE ATT&CK Matrix ATT&CK v6

              Initial Access

              Execution

              Scheduled Task

              1
              T1053

              Persistence

              Scheduled Task

              1
              T1053

              Privilege Escalation

              Scheduled Task

              1
              T1053

              Defense Evasion

              Credential Access

              Discovery

              Query Registry

              4
              T1012

              System Information Discovery

              4
              T1082

              Peripheral Device Discovery

              1
              T1120

              Lateral Movement

              Collection

              Exfiltration

              Command and Control

              Impact

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\tmpAAAF.tmp
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              • memory/240-1-0x0000000000000000-0x0000000000000000-disk.dmp
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              • memory/508-2-0x0000000000000000-mapping.dmp
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              • memory/1052-4-0x0000000000400000-0x000000000042D000-memory.dmp
                Filesize

                180KB

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              • memory/1052-5-0x000000000041E2E0-mapping.dmp
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              • memory/1580-8-0x0000000000000000-mapping.dmp
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              • memory/1612-6-0x0000000000000000-mapping.dmp
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              • memory/1612-7-0x00000000000C0000-0x00000000000C6000-memory.dmp
                Filesize

                24KB

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              • memory/1612-9-0x00000000006E0000-0x0000000000836000-memory.dmp
                Filesize

                1.3MB

                Download