Analysis

  • max time kernel
    141s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    14-07-2022 03:21

General

  • Target

    4858c75de20e121e8fea9996ad070ee4759764b46cc247687bf42af3ac08c46c.exe

  • Size

    773KB

  • MD5

    919fad47fb64a39ead7e17dfbe4cfc06

  • SHA1

    5397ecbfee38cc27ad328c80de850a1da0334734

  • SHA256

    4858c75de20e121e8fea9996ad070ee4759764b46cc247687bf42af3ac08c46c

  • SHA512

    d0e0b93b39730a6ba98f1af3af0d10948c4fe036b940fc3520ad7a667a94641c447fdcb66ee0716b632bec2cb588594e884f1ba58a23f8d2eea5de0666775005

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    prayforme18

Signatures

  • HawkEye

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

  • NirSoft MailPassView 6 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 7 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 11 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 1 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
  • Looks up external IP address via web service 2 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4858c75de20e121e8fea9996ad070ee4759764b46cc247687bf42af3ac08c46c.exe
    "C:\Users\Admin\AppData\Local\Temp\4858c75de20e121e8fea9996ad070ee4759764b46cc247687bf42af3ac08c46c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4052
    • C:\Users\Admin\AppData\Local\Temp\4858c75de20e121e8fea9996ad070ee4759764b46cc247687bf42af3ac08c46c.exe
      C:\Users\Admin\AppData\Local\Temp\4858c75de20e121e8fea9996ad070ee4759764b46cc247687bf42af3ac08c46c.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:424
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1940
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2624
          • 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:2388
          • 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"
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3860

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    102B

    MD5

    1ecd6816a51877ed449c46e97da68163

    SHA1

    ead75fb308c112ddd346330050e5dbcc56cb8246

    SHA256

    aab13006a002ff3b7708c6a90f67752834c25aa4f6822f54531133fa4ea1f481

    SHA512

    b989bd5df9e706adcb51cde8c052fc7e7b7829ffc010377acf2fffd85c3ca282324c26f8557c1cccf1cdd005fdb65ff7252c47769fd5df151c246adecf4cfac8

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

    Filesize

    3KB

    MD5

    f94dc819ca773f1e3cb27abbc9e7fa27

    SHA1

    9a7700efadc5ea09ab288544ef1e3cd876255086

    SHA256

    a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

    SHA512

    72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

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

    Filesize

    773KB

    MD5

    919fad47fb64a39ead7e17dfbe4cfc06

    SHA1

    5397ecbfee38cc27ad328c80de850a1da0334734

    SHA256

    4858c75de20e121e8fea9996ad070ee4759764b46cc247687bf42af3ac08c46c

    SHA512

    d0e0b93b39730a6ba98f1af3af0d10948c4fe036b940fc3520ad7a667a94641c447fdcb66ee0716b632bec2cb588594e884f1ba58a23f8d2eea5de0666775005

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

    Filesize

    773KB

    MD5

    919fad47fb64a39ead7e17dfbe4cfc06

    SHA1

    5397ecbfee38cc27ad328c80de850a1da0334734

    SHA256

    4858c75de20e121e8fea9996ad070ee4759764b46cc247687bf42af3ac08c46c

    SHA512

    d0e0b93b39730a6ba98f1af3af0d10948c4fe036b940fc3520ad7a667a94641c447fdcb66ee0716b632bec2cb588594e884f1ba58a23f8d2eea5de0666775005

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

    Filesize

    773KB

    MD5

    919fad47fb64a39ead7e17dfbe4cfc06

    SHA1

    5397ecbfee38cc27ad328c80de850a1da0334734

    SHA256

    4858c75de20e121e8fea9996ad070ee4759764b46cc247687bf42af3ac08c46c

    SHA512

    d0e0b93b39730a6ba98f1af3af0d10948c4fe036b940fc3520ad7a667a94641c447fdcb66ee0716b632bec2cb588594e884f1ba58a23f8d2eea5de0666775005

  • memory/424-135-0x00000000770A0000-0x0000000077243000-memory.dmp

    Filesize

    1.6MB

  • memory/424-144-0x00000000770A0000-0x0000000077243000-memory.dmp

    Filesize

    1.6MB

  • memory/424-145-0x0000000074710000-0x0000000074CC1000-memory.dmp

    Filesize

    5.7MB

  • memory/424-141-0x0000000006AB0000-0x0000000006B40000-memory.dmp

    Filesize

    576KB

  • memory/424-138-0x0000000000400000-0x0000000000477000-memory.dmp

    Filesize

    476KB

  • memory/424-149-0x00000000770A0000-0x0000000077243000-memory.dmp

    Filesize

    1.6MB

  • memory/424-152-0x0000000074710000-0x0000000074CC1000-memory.dmp

    Filesize

    5.7MB

  • memory/1940-155-0x00000000770A0000-0x0000000077243000-memory.dmp

    Filesize

    1.6MB

  • memory/2388-172-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2388-170-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2388-173-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2624-175-0x0000000074710000-0x0000000074CC1000-memory.dmp

    Filesize

    5.7MB

  • memory/2624-164-0x00000000770A0000-0x0000000077243000-memory.dmp

    Filesize

    1.6MB

  • memory/2624-165-0x00000000770A0000-0x0000000077243000-memory.dmp

    Filesize

    1.6MB

  • memory/2624-166-0x0000000074710000-0x0000000074CC1000-memory.dmp

    Filesize

    5.7MB

  • memory/2624-167-0x0000000074710000-0x0000000074CC1000-memory.dmp

    Filesize

    5.7MB

  • memory/2624-161-0x0000000006A90000-0x0000000006B20000-memory.dmp

    Filesize

    576KB

  • memory/2624-174-0x00000000770A0000-0x0000000077243000-memory.dmp

    Filesize

    1.6MB

  • memory/3860-177-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3860-179-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3860-180-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/3860-182-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/4052-132-0x00000000029A0000-0x00000000029A8000-memory.dmp

    Filesize

    32KB

  • memory/4052-134-0x00000000770A0000-0x0000000077243000-memory.dmp

    Filesize

    1.6MB