Analysis

  • max time kernel
    119s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    28-03-2024 07:28

General

  • Target

    SecuriteInfo.com.Win32.PWSX-gen.23268.exe

  • Size

    740KB

  • MD5

    172ee9c18f5ccdc214e7beebcf9d8778

  • SHA1

    66ac5a38d22c834aa3672961d46ff111bf67e72c

  • SHA256

    63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079

  • SHA512

    54a83a65eeeca1821b89d809ea730d640fd9511e2b29f58009eb3d8138968c28f58fbd02e08552c4ca7a0828326a8b9649c2fe146aefd0e7a318d855fde11e18

  • SSDEEP

    12288:bSG0YOwqyjo4Gzzsj+YuFVQMJ2FE0KBxHPhzbwxwJlCMo1FPpXPtH:OWO7yn+Yucbex9wqJlz

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.hoangtruongphat.com
  • Port:
    587
  • Username:
    cus.overseas@hoangtruongphat.com
  • Password:
    hoangtruongphat818

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.hoangtruongphat.com
  • Port:
    587
  • Username:
    cus.overseas@hoangtruongphat.com
  • Password:
    hoangtruongphat818
  • Email To:
    cus.overseas@hoangtruongphat.com

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3016
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\deZVtbExkPfJNa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2984
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\deZVtbExkPfJNa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp31AB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2572
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.exe"
      2⤵
        PID:2708
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.exe
        "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.23268.exe"
        2⤵
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1956

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Subvert Trust Controls

    1
    T1553

    Install Root Certificate

    1
    T1553.004

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
      Filesize

      68KB

      MD5

      29f65ba8e88c063813cc50a4ea544e93

      SHA1

      05a7040d5c127e68c25d81cc51271ffb8bef3568

      SHA256

      1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

      SHA512

      e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357
      Filesize

      1KB

      MD5

      a266bb7dcc38a562631361bbf61dd11b

      SHA1

      3b1efd3a66ea28b16697394703a72ca340a05bd5

      SHA256

      df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

      SHA512

      0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357
      Filesize

      242B

      MD5

      80bc4e46e9a6009ebbd513dcfc1fea38

      SHA1

      2a22288c9825ec9556166a60337b10a0d21d18f6

      SHA256

      2629c80773fc7ca1528dfaac2e0c83bab955a5b5a7907dc03c264e5d2d24c8e4

      SHA512

      5b72866556d227a3383e4fed033599caab14b0b029f5741c42c7dcd37a57d34463d9b98ca9c870841a876b902e34a41b19a977eb1a3cc0cab8b73020baedb173

    • C:\Users\Admin\AppData\Local\Temp\Tar71CB.tmp
      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • C:\Users\Admin\AppData\Local\Temp\tmp31AB.tmp
      Filesize

      1KB

      MD5

      4207a8d599e888117719085e43095b4c

      SHA1

      25d8d2e3e515380096aa182f6c29b4109a1471e9

      SHA256

      09b34070309de9b9c0e0a9ca46a93a017a1ca6c05b599e9c16faf5719eb0f4c4

      SHA512

      aa0ac6391298aec589d2c75fae22ffb6e3e528bdfab1c81b13a6034d2ee5b2fa172d055bf83986e78175e196690873fcdfc6e3a2d4ee795cd6a014386fb3748c

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\FYE2ZHGB3E7C8BLCIO0V.temp
      Filesize

      7KB

      MD5

      bf3b35cd1c822bb8b737211649ade2da

      SHA1

      15aab7f98221c20f291a27826aa182da9f8fabc1

      SHA256

      f345e9d278b37376da4ee2197c61d768b06f1a06dc3d8dc279c6ea13bd0e6003

      SHA512

      372488776df1c478fe4b777bf3ccae3fd05ef89e37a281850a7d865841f9f8a569389b37cd98d591b94ddc2f5ce09b908887382fab1d9456ad9d8e5254a4570e

    • memory/1540-5-0x0000000007640000-0x00000000076C4000-memory.dmp
      Filesize

      528KB

    • memory/1540-1-0x0000000074E50000-0x000000007553E000-memory.dmp
      Filesize

      6.9MB

    • memory/1540-4-0x00000000004D0000-0x00000000004DC000-memory.dmp
      Filesize

      48KB

    • memory/1540-3-0x0000000000610000-0x000000000062A000-memory.dmp
      Filesize

      104KB

    • memory/1540-2-0x0000000007210000-0x0000000007250000-memory.dmp
      Filesize

      256KB

    • memory/1540-0-0x0000000000300000-0x00000000003BE000-memory.dmp
      Filesize

      760KB

    • memory/1540-29-0x0000000074E50000-0x000000007553E000-memory.dmp
      Filesize

      6.9MB

    • memory/1956-30-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/1956-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/1956-117-0x0000000073B50000-0x000000007423E000-memory.dmp
      Filesize

      6.9MB

    • memory/1956-25-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/1956-18-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/1956-19-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/1956-34-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/1956-21-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/1956-20-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/1956-41-0x0000000073B50000-0x000000007423E000-memory.dmp
      Filesize

      6.9MB

    • memory/2984-38-0x00000000029D0000-0x0000000002A10000-memory.dmp
      Filesize

      256KB

    • memory/2984-37-0x00000000029D0000-0x0000000002A10000-memory.dmp
      Filesize

      256KB

    • memory/2984-28-0x000000006F9A0000-0x000000006FF4B000-memory.dmp
      Filesize

      5.7MB

    • memory/2984-43-0x000000006F9A0000-0x000000006FF4B000-memory.dmp
      Filesize

      5.7MB

    • memory/2984-36-0x000000006F9A0000-0x000000006FF4B000-memory.dmp
      Filesize

      5.7MB

    • memory/2984-33-0x00000000029D0000-0x0000000002A10000-memory.dmp
      Filesize

      256KB

    • memory/3016-27-0x000000006F9A0000-0x000000006FF4B000-memory.dmp
      Filesize

      5.7MB

    • memory/3016-39-0x00000000029C0000-0x0000000002A00000-memory.dmp
      Filesize

      256KB

    • memory/3016-42-0x000000006F9A0000-0x000000006FF4B000-memory.dmp
      Filesize

      5.7MB

    • memory/3016-40-0x00000000029C0000-0x0000000002A00000-memory.dmp
      Filesize

      256KB

    • memory/3016-35-0x000000006F9A0000-0x000000006FF4B000-memory.dmp
      Filesize

      5.7MB

    • memory/3016-31-0x00000000029C0000-0x0000000002A00000-memory.dmp
      Filesize

      256KB