Analysis

  • max time kernel
    151s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    19-11-2020 14:53

General

  • Target

    BANK-STATMENT _xlsx.exe

  • Size

    942KB

  • MD5

    debe564cd4c27c02d23c828df27fe27f

  • SHA1

    1b55fba242460cc0a5b38299acaaacf3f54c5e87

  • SHA256

    edafe7e62738e180cb882d93f37d2d306627aef482d6f7a7a06c69198c61cd58

  • SHA512

    07091b073d5885787f830a6a02a39f1064a80767ac02aea87bbc66ccb93406fba2f7a7bdd9d02d4c04f18b54bb59b34d0fd3e97649584363008c56b126801c37

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.iigcest.com
  • Port:
    587
  • Username:
    ansaf@iigcest.com
  • Password:
    Ans2016@

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • UPX packed file 3 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Uses the VBS compiler for execution 1 TTPs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 738 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BANK-STATMENT _xlsx.exe
    "C:\Users\Admin\AppData\Local\Temp\BANK-STATMENT _xlsx.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\Users\Admin\AppData\Local\Temp\BANK-STATMENT _xlsx.exe
      "C:\Users\Admin\AppData\Local\Temp\BANK-STATMENT _xlsx.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2028
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        3⤵
          PID:576
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
          3⤵
            PID:820
        • C:\Users\Admin\AppData\Local\Temp\BANK-STATMENT _xlsx.exe
          "C:\Users\Admin\AppData\Local\Temp\BANK-STATMENT _xlsx.exe" 2 2028 259267530
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1184

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Execution

      Scripting

      1
      T1064

      Defense Evasion

      Scripting

      1
      T1064

      Credential Access

      Credentials in Files

      1
      T1081

      Collection

      Data from Local System

      1
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\holderwb.txt
        MD5

        f3b25701fe362ec84616a93a45ce9998

        SHA1

        d62636d8caec13f04e28442a0a6fa1afeb024bbb

        SHA256

        b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

        SHA512

        98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

      • memory/576-12-0x0000000000411654-mapping.dmp
      • memory/576-13-0x0000000000400000-0x000000000041B000-memory.dmp
        Filesize

        108KB

      • memory/576-11-0x0000000000400000-0x000000000041B000-memory.dmp
        Filesize

        108KB

      • memory/748-0-0x0000000000400000-0x00000000004F1000-memory.dmp
        Filesize

        964KB

      • memory/820-16-0x0000000000400000-0x0000000000458000-memory.dmp
        Filesize

        352KB

      • memory/820-14-0x0000000000400000-0x0000000000458000-memory.dmp
        Filesize

        352KB

      • memory/820-15-0x0000000000442628-mapping.dmp
      • memory/1152-17-0x000007FEF7790000-0x000007FEF7A0A000-memory.dmp
        Filesize

        2.5MB

      • memory/1184-4-0x0000000000000000-mapping.dmp
      • memory/1184-7-0x0000000000400000-0x00000000004F1000-memory.dmp
        Filesize

        964KB

      • memory/2028-2-0x000000000051B4C0-mapping.dmp
      • memory/2028-8-0x0000000001F92000-0x0000000001F93000-memory.dmp
        Filesize

        4KB

      • memory/2028-9-0x0000000000590000-0x0000000000613000-memory.dmp
        Filesize

        524KB

      • memory/2028-6-0x0000000001E20000-0x0000000001EA8000-memory.dmp
        Filesize

        544KB

      • memory/2028-1-0x0000000000400000-0x000000000051D000-memory.dmp
        Filesize

        1.1MB

      • memory/2028-5-0x0000000000400000-0x000000000051D000-memory.dmp
        Filesize

        1.1MB

      • memory/2028-3-0x0000000000400000-0x000000000051D000-memory.dmp
        Filesize

        1.1MB