Analysis

  • max time kernel
    156s
  • max time network
    189s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 11:19

General

  • Target

    0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1.exe

  • Size

    1007KB

  • MD5

    5ae5b9fd23698f70e2b0bbfa91dc4bc3

  • SHA1

    d59f364bf8707be6aa529d52d3e695a3be23469b

  • SHA256

    0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1

  • SHA512

    b9159b28be5c8e3a8651e2a14cba8da59a103db507b2db657a7717bede1ed96f8b72cb66df01eff4d7c2aba4bffc894af7141e81f23e28174606c4ba19bc6949

  • SSDEEP

    24576:1Bd5WtFBJDsi+uNaLRILoHKdYH1CeZbi6ezAot3EF8x20C7R1dH:M3Dsi38dDt

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 15 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 15 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 20 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Obfuscated with Agile.Net obfuscator 5 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • 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
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1.exe
    "C:\Users\Admin\AppData\Local\Temp\0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1296
    • C:\Users\Admin\AppData\Local\Temp\0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1.exe
      "C:\Users\Admin\AppData\Local\Temp\0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1176
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1588
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:432
          • 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"
            5⤵
            • Accesses Microsoft Outlook accounts
            PID:1696
          • 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"
            5⤵
              PID:584

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scripting

    1
    T1064

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Scripting

    1
    T1064

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt
      Filesize

      102B

      MD5

      5169980e1a9b7e0dce4e906e22d1e94a

      SHA1

      02f592b97337f7ae2de70f4e62bac575495d1464

      SHA256

      1afb9082b4092f609cc60c2b93d2c610af9d95e27a811f407b7792978e30b26d

      SHA512

      295cb76af1cba4b368ef9c230b4a608c047f719ea0c37c1fc6c24d88a9bd26336e225dbf778ef14287c0ed3279892e635f307d1f5d52d45f17cda1b326d02b02

    • C:\Users\Admin\AppData\Local\Temp\holdermail.txt
      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      1007KB

      MD5

      5ae5b9fd23698f70e2b0bbfa91dc4bc3

      SHA1

      d59f364bf8707be6aa529d52d3e695a3be23469b

      SHA256

      0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1

      SHA512

      b9159b28be5c8e3a8651e2a14cba8da59a103db507b2db657a7717bede1ed96f8b72cb66df01eff4d7c2aba4bffc894af7141e81f23e28174606c4ba19bc6949

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      1007KB

      MD5

      5ae5b9fd23698f70e2b0bbfa91dc4bc3

      SHA1

      d59f364bf8707be6aa529d52d3e695a3be23469b

      SHA256

      0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1

      SHA512

      b9159b28be5c8e3a8651e2a14cba8da59a103db507b2db657a7717bede1ed96f8b72cb66df01eff4d7c2aba4bffc894af7141e81f23e28174606c4ba19bc6949

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      1007KB

      MD5

      5ae5b9fd23698f70e2b0bbfa91dc4bc3

      SHA1

      d59f364bf8707be6aa529d52d3e695a3be23469b

      SHA256

      0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1

      SHA512

      b9159b28be5c8e3a8651e2a14cba8da59a103db507b2db657a7717bede1ed96f8b72cb66df01eff4d7c2aba4bffc894af7141e81f23e28174606c4ba19bc6949

    • \Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      1007KB

      MD5

      5ae5b9fd23698f70e2b0bbfa91dc4bc3

      SHA1

      d59f364bf8707be6aa529d52d3e695a3be23469b

      SHA256

      0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1

      SHA512

      b9159b28be5c8e3a8651e2a14cba8da59a103db507b2db657a7717bede1ed96f8b72cb66df01eff4d7c2aba4bffc894af7141e81f23e28174606c4ba19bc6949

    • \Users\Admin\AppData\Roaming\Windows Update.exe
      Filesize

      1007KB

      MD5

      5ae5b9fd23698f70e2b0bbfa91dc4bc3

      SHA1

      d59f364bf8707be6aa529d52d3e695a3be23469b

      SHA256

      0b65cec380e24cdc60a6e034ecc0ad1d47f52048dc11f88d33f693fde52870a1

      SHA512

      b9159b28be5c8e3a8651e2a14cba8da59a103db507b2db657a7717bede1ed96f8b72cb66df01eff4d7c2aba4bffc894af7141e81f23e28174606c4ba19bc6949

    • memory/432-103-0x00000000744E0000-0x0000000074A8B000-memory.dmp
      Filesize

      5.7MB

    • memory/432-101-0x00000000744E0000-0x0000000074A8B000-memory.dmp
      Filesize

      5.7MB

    • memory/432-99-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/432-97-0x0000000000400000-0x00000000004B8000-memory.dmp
      Filesize

      736KB

    • memory/432-93-0x0000000000485B1E-mapping.dmp
    • memory/584-116-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/584-112-0x0000000000442628-mapping.dmp
    • memory/584-111-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/584-118-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/584-115-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1176-65-0x00000000001D0000-0x0000000000288000-memory.dmp
      Filesize

      736KB

    • memory/1176-70-0x00000000001D0000-0x0000000000288000-memory.dmp
      Filesize

      736KB

    • memory/1176-66-0x00000000001D0000-0x0000000000288000-memory.dmp
      Filesize

      736KB

    • memory/1176-74-0x00000000001D0000-0x0000000000288000-memory.dmp
      Filesize

      736KB

    • memory/1176-76-0x0000000074540000-0x0000000074AEB000-memory.dmp
      Filesize

      5.7MB

    • memory/1176-64-0x0000000000485B1E-mapping.dmp
    • memory/1176-62-0x00000000001D0000-0x0000000000288000-memory.dmp
      Filesize

      736KB

    • memory/1176-82-0x0000000074540000-0x0000000074AEB000-memory.dmp
      Filesize

      5.7MB

    • memory/1176-60-0x00000000001D0000-0x0000000000288000-memory.dmp
      Filesize

      736KB

    • memory/1176-58-0x00000000001D0000-0x0000000000288000-memory.dmp
      Filesize

      736KB

    • memory/1176-57-0x00000000001D0000-0x0000000000288000-memory.dmp
      Filesize

      736KB

    • memory/1296-56-0x0000000074550000-0x0000000074AFB000-memory.dmp
      Filesize

      5.7MB

    • memory/1296-55-0x0000000074550000-0x0000000074AFB000-memory.dmp
      Filesize

      5.7MB

    • memory/1296-73-0x0000000074550000-0x0000000074AFB000-memory.dmp
      Filesize

      5.7MB

    • memory/1296-54-0x00000000759C1000-0x00000000759C3000-memory.dmp
      Filesize

      8KB

    • memory/1588-84-0x0000000074540000-0x0000000074AEB000-memory.dmp
      Filesize

      5.7MB

    • memory/1588-95-0x0000000074540000-0x0000000074AEB000-memory.dmp
      Filesize

      5.7MB

    • memory/1588-83-0x0000000074540000-0x0000000074AEB000-memory.dmp
      Filesize

      5.7MB

    • memory/1588-78-0x0000000000000000-mapping.dmp
    • memory/1696-109-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1696-110-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1696-108-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1696-104-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1696-105-0x0000000000411654-mapping.dmp