Analysis

  • max time kernel
    81s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 19:02

General

  • Target

    3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe

  • Size

    1.1MB

  • MD5

    c311711a2b54c663916925c8d1171881

  • SHA1

    946d5729d2fa83a4f2f56f29d1f2271dd2cf34af

  • SHA256

    3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560

  • SHA512

    64bbed820440494ae76a63f8517c8781b6903100e3c41b253dbd276dd90ae6371db4626a7aa78ff76efe9f78a76a903677e14f14ba13c2cf329d8217c09502c7

  • SSDEEP

    24576:L72nfRhfpJo+WdC6OJilSdh1l6NYZMeL/3C5essn17hiUMJ:vkJhxJmc64WSn1lvZtbC53sn1liUM

Malware Config

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 9 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 10 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 14 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 1 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe
    "C:\Users\Admin\AppData\Local\Temp\3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1232
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\\mata.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1276
      • C:\Windows\SysWOW64\wscript.exe
        wscript.exe "C:\Users\Admin\AppData\Local\Temp\invs.vbs" "C:\Users\Admin\AppData\Local\Temp\mata2.bat
        3⤵
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:1308
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\mata2.bat" "
          4⤵
            PID:2304
      • C:\Users\Admin\AppData\Local\Temp\tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
        2⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:1384
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          3⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:216
          • 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"
            4⤵
            • Accesses Microsoft Outlook accounts
            PID:2328
          • 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"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:4036
      • C:\Users\Admin\AppData\Local\Temp\3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe
        C:\Users\Admin\AppData\Local\Temp\3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe
        2⤵
          PID:1448

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560.exe.log

        Filesize

        774B

        MD5

        049b2c7e274ebb68f3ada1961c982a22

        SHA1

        796b9f03c8cd94617ea26aaf861af9fb2a5731db

        SHA256

        5c69c41dceda1bb32d4054d6b483bb3e3af84c8cf0a6191c79068168a1d506b3

        SHA512

        fb2ee642e1401772d514e86b0b8dd117659335066242e85c158b40e8912572f2bd7b9a0f63f9b9f4d7a2e051579345215f6b1f147881f3d1e78f335c45d78ebf

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

        Filesize

        41B

        MD5

        fa4a6393f371a289f6b187ba6aaada19

        SHA1

        84f4f1eedd713c86f97605f7e8a23a1f2d2678a3

        SHA256

        53ea98bb79bd329140803195f5c46b117986bdeba86f301f9613de657f38b528

        SHA512

        2c6d8429aa7bfb9b2357c3ef710a5d98cd1cb62f29ba36091ddf4a05fe28cc7b35a4609aa7cd1e1f59350c004e2ab9f1c18cc2506bde92f64d6fa3413e0a0519

      • C:\Users\Admin\AppData\Local\Temp\file.exe

        Filesize

        1.1MB

        MD5

        c311711a2b54c663916925c8d1171881

        SHA1

        946d5729d2fa83a4f2f56f29d1f2271dd2cf34af

        SHA256

        3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560

        SHA512

        64bbed820440494ae76a63f8517c8781b6903100e3c41b253dbd276dd90ae6371db4626a7aa78ff76efe9f78a76a903677e14f14ba13c2cf329d8217c09502c7

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

        Filesize

        3KB

        MD5

        f94dc819ca773f1e3cb27abbc9e7fa27

        SHA1

        9a7700efadc5ea09ab288544ef1e3cd876255086

        SHA256

        a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

        SHA512

        72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

      • C:\Users\Admin\AppData\Local\Temp\invs.vbs

        Filesize

        78B

        MD5

        c578d9653b22800c3eb6b6a51219bbb8

        SHA1

        a97aa251901bbe179a48dbc7a0c1872e163b1f2d

        SHA256

        20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

        SHA512

        3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

      • C:\Users\Admin\AppData\Local\Temp\mata.bat

        Filesize

        47B

        MD5

        58c538a6ae20a3c6031217903cdf8e5d

        SHA1

        399fd50eadf4945b665877facfc4f53d16e18b1e

        SHA256

        6bcc0e04d9bc32209d90a65c320dc6363e523dd94b38b17bcdc5b980b6405f53

        SHA512

        c01828a5390fec3443e19d317137ae873de77c7737db7802650430e6a0a1edbd3aabe362903243b372536418fbd8482c2a6efd122d853744a41ade567956c359

      • C:\Users\Admin\AppData\Local\Temp\mata2.bat

        Filesize

        47B

        MD5

        095b2908ae8b2e0e3704c0163f26e283

        SHA1

        3429b6c1421d448c98c1da9625badcea2484a521

        SHA256

        22b182644ab28f5e9e17b5a03ba404d09b02da367146b80484584adc842a3ed1

        SHA512

        e22e379b4f0d8e11fa7c29c3297a3e24a533fb08895d18e9bb27e8cab84da1dd52ff437aca90c5c32a9bdb578b3c1bfb3ff42d3bc2c5951ffeb5941c8286c731

      • C:\Users\Admin\AppData\Local\Temp\rundll11-.txt

        Filesize

        1.1MB

        MD5

        c311711a2b54c663916925c8d1171881

        SHA1

        946d5729d2fa83a4f2f56f29d1f2271dd2cf34af

        SHA256

        3857aff7641664e134111eb7e2f373ccc2824d5be5f614b0a2992646b87e6560

        SHA512

        64bbed820440494ae76a63f8517c8781b6903100e3c41b253dbd276dd90ae6371db4626a7aa78ff76efe9f78a76a903677e14f14ba13c2cf329d8217c09502c7

      • C:\Users\Admin\AppData\Local\Temp\tmp.exe

        Filesize

        502KB

        MD5

        5d6c71a513f5f6b0a8e879d092f00bcf

        SHA1

        c1029f428c6fe571e5ab2f5c1170f4dd60154f51

        SHA256

        5d17f4b34d508e55cb33af2dd0b190a2c599120c4373ec988e41ba3ff960e590

        SHA512

        364da97a63f8e312cc12c504ce55357e50e1248b6b397cb510fd5e2cc4d6acb4adf0b2c48c554e47b5651679c3f3af2d480ebcb9c9048bfef36c2ffa917ee8e4

      • C:\Users\Admin\AppData\Local\Temp\tmp.exe

        Filesize

        502KB

        MD5

        5d6c71a513f5f6b0a8e879d092f00bcf

        SHA1

        c1029f428c6fe571e5ab2f5c1170f4dd60154f51

        SHA256

        5d17f4b34d508e55cb33af2dd0b190a2c599120c4373ec988e41ba3ff960e590

        SHA512

        364da97a63f8e312cc12c504ce55357e50e1248b6b397cb510fd5e2cc4d6acb4adf0b2c48c554e47b5651679c3f3af2d480ebcb9c9048bfef36c2ffa917ee8e4

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

        Filesize

        502KB

        MD5

        5d6c71a513f5f6b0a8e879d092f00bcf

        SHA1

        c1029f428c6fe571e5ab2f5c1170f4dd60154f51

        SHA256

        5d17f4b34d508e55cb33af2dd0b190a2c599120c4373ec988e41ba3ff960e590

        SHA512

        364da97a63f8e312cc12c504ce55357e50e1248b6b397cb510fd5e2cc4d6acb4adf0b2c48c554e47b5651679c3f3af2d480ebcb9c9048bfef36c2ffa917ee8e4

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

        Filesize

        502KB

        MD5

        5d6c71a513f5f6b0a8e879d092f00bcf

        SHA1

        c1029f428c6fe571e5ab2f5c1170f4dd60154f51

        SHA256

        5d17f4b34d508e55cb33af2dd0b190a2c599120c4373ec988e41ba3ff960e590

        SHA512

        364da97a63f8e312cc12c504ce55357e50e1248b6b397cb510fd5e2cc4d6acb4adf0b2c48c554e47b5651679c3f3af2d480ebcb9c9048bfef36c2ffa917ee8e4

      • memory/216-153-0x0000000074EC0000-0x0000000075471000-memory.dmp

        Filesize

        5.7MB

      • memory/216-149-0x0000000074EC0000-0x0000000075471000-memory.dmp

        Filesize

        5.7MB

      • memory/216-145-0x0000000000000000-mapping.dmp

      • memory/1232-151-0x0000000074EC0000-0x0000000075471000-memory.dmp

        Filesize

        5.7MB

      • memory/1232-158-0x0000000074EC0000-0x0000000075471000-memory.dmp

        Filesize

        5.7MB

      • memory/1232-132-0x0000000074EC0000-0x0000000075471000-memory.dmp

        Filesize

        5.7MB

      • memory/1276-133-0x0000000000000000-mapping.dmp

      • memory/1308-135-0x0000000000000000-mapping.dmp

      • memory/1384-148-0x0000000074EC0000-0x0000000075471000-memory.dmp

        Filesize

        5.7MB

      • memory/1384-144-0x0000000074EC0000-0x0000000075471000-memory.dmp

        Filesize

        5.7MB

      • memory/1384-138-0x0000000000000000-mapping.dmp

      • memory/1448-154-0x0000000074EC0000-0x0000000075471000-memory.dmp

        Filesize

        5.7MB

      • memory/1448-155-0x0000000074EC0000-0x0000000075471000-memory.dmp

        Filesize

        5.7MB

      • memory/1448-142-0x0000000000000000-mapping.dmp

      • memory/1448-152-0x0000000000400000-0x0000000000484000-memory.dmp

        Filesize

        528KB

      • memory/2304-139-0x0000000000000000-mapping.dmp

      • memory/2328-163-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/2328-162-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/2328-160-0x0000000000400000-0x000000000041B000-memory.dmp

        Filesize

        108KB

      • memory/2328-159-0x0000000000000000-mapping.dmp

      • memory/4036-164-0x0000000000000000-mapping.dmp

      • memory/4036-165-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/4036-167-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/4036-168-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB

      • memory/4036-170-0x0000000000400000-0x0000000000458000-memory.dmp

        Filesize

        352KB