Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 18:11

General

  • Target

    def0634b97de032fca1c34f1aecec36362c82a1fdebf652321a9a52208f3a7df.exe

  • Size

    3.0MB

  • MD5

    b84dfc03c6f610a24bf3ddf7be7f6e54

  • SHA1

    311010b0638ba1d954f078f6a9b98b73386906b5

  • SHA256

    def0634b97de032fca1c34f1aecec36362c82a1fdebf652321a9a52208f3a7df

  • SHA512

    ce3c70d6c7ab8526334cd5ecb12282cb3382481893e39f4bb0090f1c801948a7d4a88deb87b2152766e58540d0c7f37e55c48964a13642a31c881008880342e0

  • SSDEEP

    49152:A8dXQmuGBnx07pCTyT6c7FQqEfTFfsWw0PFMO6:AoXBuYxv8vyqEfFLwCFM

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.messagingengine.com
  • Port:
    587
  • Username:
    azarbaijJ@fastmail.com
  • Password:
    qedrks8q9hlo8up1ao7hrljvc7

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 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 2 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
  • Drops desktop.ini file(s) 2 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
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\def0634b97de032fca1c34f1aecec36362c82a1fdebf652321a9a52208f3a7df.exe
    "C:\Users\Admin\AppData\Local\Temp\def0634b97de032fca1c34f1aecec36362c82a1fdebf652321a9a52208f3a7df.exe"
    1⤵
    • Checks computer location settings
    • Drops desktop.ini file(s)
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4800
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\FolderName\mata.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1252
      • C:\Windows\SysWOW64\wscript.exe
        wscript.exe "C:\Users\Admin\AppData\Roaming\FolderName\invs.vbs" "C:\Users\Admin\AppData\Roaming\FolderName\mata2.bat"
        3⤵
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:4296
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\FolderName\mata2.bat" "
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1316
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\FolderName\csrss.exe" /f
            5⤵
            • Modifies WinLogon for persistence
            PID:632
    • C:\Users\Admin\AppData\Roaming\svhost.exe
      C:\Users\Admin\AppData\Roaming\svhost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5032
      • 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:2224
      • 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⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:5108
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\FolderName\svhost.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3116
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 300
        3⤵
        • Delays execution with timeout.exe
        PID:3680

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

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

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

    3KB

    MD5

    f94dc819ca773f1e3cb27abbc9e7fa27

    SHA1

    9a7700efadc5ea09ab288544ef1e3cd876255086

    SHA256

    a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

    SHA512

    72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

  • C:\Users\Admin\AppData\Roaming\FolderName\csrss.exe
    Filesize

    3.0MB

    MD5

    b84dfc03c6f610a24bf3ddf7be7f6e54

    SHA1

    311010b0638ba1d954f078f6a9b98b73386906b5

    SHA256

    def0634b97de032fca1c34f1aecec36362c82a1fdebf652321a9a52208f3a7df

    SHA512

    ce3c70d6c7ab8526334cd5ecb12282cb3382481893e39f4bb0090f1c801948a7d4a88deb87b2152766e58540d0c7f37e55c48964a13642a31c881008880342e0

  • C:\Users\Admin\AppData\Roaming\FolderName\invs.vbs
    Filesize

    78B

    MD5

    c578d9653b22800c3eb6b6a51219bbb8

    SHA1

    a97aa251901bbe179a48dbc7a0c1872e163b1f2d

    SHA256

    20a98a7e6e137bb1b9bd5ef6911a479cb8eac925b80d6db4e70b19f62a40cce2

    SHA512

    3ae6dc8f02d1a78e1235a0782b632972da5a74ab32287cc41aa672d4fa4a9d34bb5fc50eba07b6915f2e61c402927cd5f6feeb7f7602afa2f64e91efb3b7fc4d

  • C:\Users\Admin\AppData\Roaming\FolderName\mata.bat
    Filesize

    76B

    MD5

    5e57f6f4e3242ad9719ed5e65346e83e

    SHA1

    72346d0208c5edeb69f41ddb4374d56d87221dad

    SHA256

    4ffb3e764dfbc48145231f19e2217f666bc88a44c6f29adec6a5728223048d0c

    SHA512

    7dcd8a5a95965b94bf26ec02ab68b8f854f399d41fb713e4387f6fddb9914c465ccf909f92ee6704e9c0397a77f11f2ca803d68184aa414651988d95824a209f

  • C:\Users\Admin\AppData\Roaming\FolderName\mata2.bat
    Filesize

    272B

    MD5

    04f1ec7d48889d4cb4af9301dc545af8

    SHA1

    2984d621c74ac52e5931e8d5e9c452c945101df5

    SHA256

    5cfde47a64e3acd74f3a0a2403b9588186891fb458c015c776fc3f584945e312

    SHA512

    3bd602b9c83b1dfd3df0876d94ff1194388156090c36440e6611699bba80767d1b8668271efcad6b38e73ad2e5f97ce80b1ad391c17f6eaf44fdceb2b3c75bbb

  • C:\Users\Admin\AppData\Roaming\FolderName\svhost.bat
    Filesize

    207B

    MD5

    555506b15a163535d5f4a0a7ede4722b

    SHA1

    0624071a37435110a94651a87c9dfeda72aee845

    SHA256

    0bb7915fe5e7fedc4bdb1088a0f11210c901348abe86b169120613cdee41b4bd

    SHA512

    94530b0b9a5c0e03f42d1c2b9c2e320f1966ee35560bba9ea0bad6f652b8bcc4f5a9770f506d67070408bd71d97c8b8daf20241634cd0d41009196438fe9dfac

  • C:\Users\Admin\AppData\Roaming\svhost.exe
    Filesize

    52KB

    MD5

    a64daca3cfbcd039df3ec29d3eddd001

    SHA1

    eee8b2573f71e8d5c3ee7e53af3e6772e090d0f3

    SHA256

    403752009f29381d5e4036b8be94589c89188f9ce8ef5f86959eaaada019ed36

    SHA512

    b6fe2d0ae3fcd4442579ecf10d498d61e0f042813c8fc4be8019da77d849cfcf0b168507139a1b5697227c272de9091788f8e03cf1ce13d5b5077568cfa6a479

  • C:\Users\Admin\AppData\Roaming\svhost.exe
    Filesize

    52KB

    MD5

    a64daca3cfbcd039df3ec29d3eddd001

    SHA1

    eee8b2573f71e8d5c3ee7e53af3e6772e090d0f3

    SHA256

    403752009f29381d5e4036b8be94589c89188f9ce8ef5f86959eaaada019ed36

    SHA512

    b6fe2d0ae3fcd4442579ecf10d498d61e0f042813c8fc4be8019da77d849cfcf0b168507139a1b5697227c272de9091788f8e03cf1ce13d5b5077568cfa6a479

  • memory/632-144-0x0000000000000000-mapping.dmp
  • memory/1252-133-0x0000000000000000-mapping.dmp
  • memory/1316-143-0x0000000000000000-mapping.dmp
  • memory/2224-152-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/2224-155-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/2224-154-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/2224-151-0x0000000000000000-mapping.dmp
  • memory/3116-145-0x0000000000000000-mapping.dmp
  • memory/3680-149-0x0000000000000000-mapping.dmp
  • memory/4296-135-0x0000000000000000-mapping.dmp
  • memory/4800-147-0x0000000074A20000-0x0000000074FD1000-memory.dmp
    Filesize

    5.7MB

  • memory/4800-132-0x0000000074A20000-0x0000000074FD1000-memory.dmp
    Filesize

    5.7MB

  • memory/5032-150-0x0000000074A20000-0x0000000074FD1000-memory.dmp
    Filesize

    5.7MB

  • memory/5032-136-0x0000000000000000-mapping.dmp
  • memory/5032-137-0x0000000000400000-0x0000000000488000-memory.dmp
    Filesize

    544KB

  • memory/5032-141-0x0000000074A20000-0x0000000074FD1000-memory.dmp
    Filesize

    5.7MB

  • memory/5108-156-0x0000000000000000-mapping.dmp
  • memory/5108-157-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

  • memory/5108-159-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

  • memory/5108-160-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB

  • memory/5108-162-0x0000000000400000-0x0000000000458000-memory.dmp
    Filesize

    352KB