Analysis

  • max time kernel
    120s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 14:47

General

  • Target

    de25f56ee4c5e49b335eaaf228c8334ce3931209d0e9ddb9094ca653a09e38b0.exe

  • Size

    476KB

  • MD5

    9c1991c324bada5e248004c2314fd083

  • SHA1

    88a8af3acd4801769acd1b7547e006c78853f627

  • SHA256

    de25f56ee4c5e49b335eaaf228c8334ce3931209d0e9ddb9094ca653a09e38b0

  • SHA512

    af708b55f1d9667c80cf2a4984a9308279b15e11eacaf73514f0420c8a2527c7c8e9eebb1483a40a7552d236d74d85748326075e57a674d61f24f744423c6a36

  • SSDEEP

    6144:XJbVv9AcmXpu5gYzSOxyLdb1lZ3dMpu3UW19PsOdgk5mQl/f1BkaT+UBk2r/f5:5vVKU61LdwuE6ULkEQiaT+aNr/B

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mail.ru
  • Port:
    2525
  • Username:
    [email protected]
  • Password:
    Amoneycometome22

Signatures

  • HawkEye

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • NirSoft MailPassView 11 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 11 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 16 IoCs
  • Loads dropped DLL 1 IoCs
  • 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
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de25f56ee4c5e49b335eaaf228c8334ce3931209d0e9ddb9094ca653a09e38b0.exe
    "C:\Users\Admin\AppData\Local\Temp\de25f56ee4c5e49b335eaaf228c8334ce3931209d0e9ddb9094ca653a09e38b0.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Winrar\MRqgNCnvQN.exe,explorer.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2012
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Winrar\MRqgNCnvQN.exe,explorer.exe"
        3⤵
        • Modifies WinLogon for persistence
        PID:1668
    • C:\Users\Admin\AppData\Local\Temp\de25f56ee4c5e49b335eaaf228c8334ce3931209d0e9ddb9094ca653a09e38b0.exe
      "C:\Users\Admin\AppData\Local\Temp\de25f56ee4c5e49b335eaaf228c8334ce3931209d0e9ddb9094ca653a09e38b0.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1096
      • 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⤵
        • Accesses Microsoft Outlook accounts
        PID:1660
      • 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:1472

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scripting

    1
    T1064

    Persistence

    Winlogon Helper DLL

    1
    T1004

    Defense Evasion

    Modify Registry

    1
    T1112

    Scripting

    1
    T1064

    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\holdermail.txt
      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • \Users\Admin\AppData\Roaming\Winrar\MRqgNCnvQN.exe
      Filesize

      476KB

      MD5

      9c1991c324bada5e248004c2314fd083

      SHA1

      88a8af3acd4801769acd1b7547e006c78853f627

      SHA256

      de25f56ee4c5e49b335eaaf228c8334ce3931209d0e9ddb9094ca653a09e38b0

      SHA512

      af708b55f1d9667c80cf2a4984a9308279b15e11eacaf73514f0420c8a2527c7c8e9eebb1483a40a7552d236d74d85748326075e57a674d61f24f744423c6a36

    • memory/656-55-0x0000000073FA0000-0x000000007454B000-memory.dmp
      Filesize

      5.7MB

    • memory/656-56-0x00000000022F6000-0x0000000002307000-memory.dmp
      Filesize

      68KB

    • memory/656-57-0x0000000073FA0000-0x000000007454B000-memory.dmp
      Filesize

      5.7MB

    • memory/656-58-0x00000000022F6000-0x0000000002307000-memory.dmp
      Filesize

      68KB

    • memory/656-54-0x0000000075131000-0x0000000075133000-memory.dmp
      Filesize

      8KB

    • memory/1096-68-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1096-81-0x0000000000B65000-0x0000000000B76000-memory.dmp
      Filesize

      68KB

    • memory/1096-65-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1096-67-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1096-63-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1096-83-0x0000000073FA0000-0x000000007454B000-memory.dmp
      Filesize

      5.7MB

    • memory/1096-69-0x0000000000485A9E-mapping.dmp
    • memory/1096-71-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1096-73-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1096-75-0x0000000073FA0000-0x000000007454B000-memory.dmp
      Filesize

      5.7MB

    • memory/1096-93-0x0000000000B65000-0x0000000000B76000-memory.dmp
      Filesize

      68KB

    • memory/1096-62-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1472-89-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1472-90-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1472-92-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1472-85-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1472-86-0x0000000000442628-mapping.dmp
    • memory/1660-82-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1660-84-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1660-80-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1660-77-0x0000000000411654-mapping.dmp
    • memory/1660-76-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1668-61-0x0000000000000000-mapping.dmp
    • memory/2012-60-0x0000000000000000-mapping.dmp