Analysis

  • max time kernel
    135s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 12:42

General

  • Target

    f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe

  • Size

    566KB

  • MD5

    ab610835f4360f1caad23202a39903af

  • SHA1

    e7d6efb9fca719b56b23c6db1ae46f94f30e22e0

  • SHA256

    f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414

  • SHA512

    3c06b63600b14d4903fa4f7d5bbeca495523cbc075adb2fcf2ca1e72d3e532bd4dda58b2d8c5297f415309807adc28752e8e01afb0f8e1dfe78b8325e6d5769c

  • SSDEEP

    6144:ArzbS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnx9DjlDaq:AzQtqB5urTIoYWBQk1E+VF9mOx9dDN

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mail.yahoo.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Madalina199@

Signatures

  • HawkEye

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

  • NirSoft MailPassView 8 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 8 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 13 IoCs
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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 2 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 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe
    "C:\Users\Admin\AppData\Local\Temp\f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
      2⤵
      • Executes dropped EXE
      • Deletes itself
      • Suspicious use of SetThreadContext
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1720
      • 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:1988
      • 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"
        3⤵
          PID:1096

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      102B

      MD5

      a17f355391ac664d7a8d7868a436b49e

      SHA1

      a4759aea85429f1250915992120336c498415be9

      SHA256

      d5c81e799b056f41d4df212446f185093d169e564770e06e1638090dca3f1275

      SHA512

      6a7ebc0e7a26006f1322592c2cec0620c96f82ba321d146828f0f7bb8efcffac4ef25eb8183e257945754f7f7808bf90588f0725829c49bb97f909299832fa34

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

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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

      Filesize

      566KB

      MD5

      ab610835f4360f1caad23202a39903af

      SHA1

      e7d6efb9fca719b56b23c6db1ae46f94f30e22e0

      SHA256

      f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414

      SHA512

      3c06b63600b14d4903fa4f7d5bbeca495523cbc075adb2fcf2ca1e72d3e532bd4dda58b2d8c5297f415309807adc28752e8e01afb0f8e1dfe78b8325e6d5769c

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

      Filesize

      566KB

      MD5

      ab610835f4360f1caad23202a39903af

      SHA1

      e7d6efb9fca719b56b23c6db1ae46f94f30e22e0

      SHA256

      f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414

      SHA512

      3c06b63600b14d4903fa4f7d5bbeca495523cbc075adb2fcf2ca1e72d3e532bd4dda58b2d8c5297f415309807adc28752e8e01afb0f8e1dfe78b8325e6d5769c

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

      Filesize

      566KB

      MD5

      ab610835f4360f1caad23202a39903af

      SHA1

      e7d6efb9fca719b56b23c6db1ae46f94f30e22e0

      SHA256

      f533084c9a750561e5367cec2c76908debdfaaee05dd211903653d81047b3414

      SHA512

      3c06b63600b14d4903fa4f7d5bbeca495523cbc075adb2fcf2ca1e72d3e532bd4dda58b2d8c5297f415309807adc28752e8e01afb0f8e1dfe78b8325e6d5769c

    • memory/1096-72-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1096-79-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1096-77-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1096-76-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1096-73-0x0000000000442628-mapping.dmp

    • memory/1720-70-0x0000000073F20000-0x00000000744CB000-memory.dmp

      Filesize

      5.7MB

    • memory/1720-62-0x0000000073F20000-0x00000000744CB000-memory.dmp

      Filesize

      5.7MB

    • memory/1720-57-0x0000000000000000-mapping.dmp

    • memory/1988-69-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1988-71-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1988-68-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1988-65-0x0000000000411654-mapping.dmp

    • memory/1988-64-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/2028-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

      Filesize

      8KB

    • memory/2028-61-0x0000000073F20000-0x00000000744CB000-memory.dmp

      Filesize

      5.7MB

    • memory/2028-55-0x0000000073F20000-0x00000000744CB000-memory.dmp

      Filesize

      5.7MB