Analysis

  • max time kernel
    144s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 18:35

General

  • Target

    d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb.exe

  • Size

    742KB

  • MD5

    d41a71cf0c3f303879564cc71ef8769b

  • SHA1

    706df008e2e011467e8191620b1ea327820cc276

  • SHA256

    d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb

  • SHA512

    673733a3293cd5c014b4c16e15284c5f06ffe59949c05fec49fa51ad58ba95797fcbffa579ac532b207e2e11c30bd7bd3012490ae514051c2d5ad2af645e3275

  • SSDEEP

    12288:T33L+AnmmIyIyw8gZAzRNWNNivV4P2uoMCjdsQ2aOL4:T33L+AGBAGyu2PeaA

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    poczta.interia.pl
  • Port:
    587
  • Username:
    eaglewings3@interia.pl
  • Password:
    jamesconfirmed1

Signatures

  • HawkEye

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

  • NirSoft MailPassView 12 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 12 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 17 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 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
  • 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.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb.exe
    "C:\Users\Admin\AppData\Local\Temp\d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb.exe
      "C:\Users\Admin\AppData\Local\Temp\d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1728
      • 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 use of WriteProcessMemory
        PID:672
        • 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
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1872
          • 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:1152
          • 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:1396
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
              dw20.exe -x -s 1048
              5⤵
              • Loads dropped DLL
              PID:1116

    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

    2
    T1112

    Install Root Certificate

    1
    T1130

    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

      699a6a9ff2421fbd329ae3deaf985cb2

      SHA1

      8468ac9e4ed174eba8c61e8f65ab9b752906bd64

      SHA256

      b28354be5a96b4d35b5fe19c913bf77420ff59d2d0db0a01597fbab86a1dfb63

      SHA512

      e8046b665b2d8b374e09b2ddeeb99270e28df5dc04de56cbc5ac5878b89a7f719d357bd83e6b14c71ea8722cc06ad865752f279ac4f0b1690d79f8943d5c2ca4

    • 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

      742KB

      MD5

      d41a71cf0c3f303879564cc71ef8769b

      SHA1

      706df008e2e011467e8191620b1ea327820cc276

      SHA256

      d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb

      SHA512

      673733a3293cd5c014b4c16e15284c5f06ffe59949c05fec49fa51ad58ba95797fcbffa579ac532b207e2e11c30bd7bd3012490ae514051c2d5ad2af645e3275

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

      742KB

      MD5

      d41a71cf0c3f303879564cc71ef8769b

      SHA1

      706df008e2e011467e8191620b1ea327820cc276

      SHA256

      d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb

      SHA512

      673733a3293cd5c014b4c16e15284c5f06ffe59949c05fec49fa51ad58ba95797fcbffa579ac532b207e2e11c30bd7bd3012490ae514051c2d5ad2af645e3275

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

      742KB

      MD5

      d41a71cf0c3f303879564cc71ef8769b

      SHA1

      706df008e2e011467e8191620b1ea327820cc276

      SHA256

      d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb

      SHA512

      673733a3293cd5c014b4c16e15284c5f06ffe59949c05fec49fa51ad58ba95797fcbffa579ac532b207e2e11c30bd7bd3012490ae514051c2d5ad2af645e3275

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

      742KB

      MD5

      d41a71cf0c3f303879564cc71ef8769b

      SHA1

      706df008e2e011467e8191620b1ea327820cc276

      SHA256

      d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb

      SHA512

      673733a3293cd5c014b4c16e15284c5f06ffe59949c05fec49fa51ad58ba95797fcbffa579ac532b207e2e11c30bd7bd3012490ae514051c2d5ad2af645e3275

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

      742KB

      MD5

      d41a71cf0c3f303879564cc71ef8769b

      SHA1

      706df008e2e011467e8191620b1ea327820cc276

      SHA256

      d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb

      SHA512

      673733a3293cd5c014b4c16e15284c5f06ffe59949c05fec49fa51ad58ba95797fcbffa579ac532b207e2e11c30bd7bd3012490ae514051c2d5ad2af645e3275

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

      742KB

      MD5

      d41a71cf0c3f303879564cc71ef8769b

      SHA1

      706df008e2e011467e8191620b1ea327820cc276

      SHA256

      d1246e63ab964177e1b1b1d54a301ab18ec37e5e0adacea0fbc90e87d7a2fcfb

      SHA512

      673733a3293cd5c014b4c16e15284c5f06ffe59949c05fec49fa51ad58ba95797fcbffa579ac532b207e2e11c30bd7bd3012490ae514051c2d5ad2af645e3275

    • memory/672-72-0x0000000000000000-mapping.dmp
    • memory/672-92-0x0000000074700000-0x0000000074CAB000-memory.dmp
      Filesize

      5.7MB

    • memory/1116-111-0x0000000000000000-mapping.dmp
    • memory/1152-100-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1152-96-0x0000000000411654-mapping.dmp
    • memory/1152-102-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1152-99-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1152-95-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1396-103-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1396-108-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1396-109-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1396-107-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1396-104-0x0000000000442628-mapping.dmp
    • memory/1652-69-0x0000000074700000-0x0000000074CAB000-memory.dmp
      Filesize

      5.7MB

    • memory/1652-54-0x00000000758C1000-0x00000000758C3000-memory.dmp
      Filesize

      8KB

    • memory/1652-55-0x0000000074700000-0x0000000074CAB000-memory.dmp
      Filesize

      5.7MB

    • memory/1728-65-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1728-76-0x0000000074700000-0x0000000074CAB000-memory.dmp
      Filesize

      5.7MB

    • memory/1728-70-0x0000000074700000-0x0000000074CAB000-memory.dmp
      Filesize

      5.7MB

    • memory/1728-67-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1728-63-0x0000000000485AAE-mapping.dmp
    • memory/1728-62-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1728-59-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1728-61-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1728-57-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1728-56-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/1872-93-0x0000000074700000-0x0000000074CAB000-memory.dmp
      Filesize

      5.7MB

    • memory/1872-85-0x0000000000485AAE-mapping.dmp
    • memory/1872-101-0x0000000074700000-0x0000000074CAB000-memory.dmp
      Filesize

      5.7MB