Analysis

  • max time kernel
    119s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 02:18

General

  • Target

    63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079.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:
    [email protected]
  • Password:
    hoangtruongphat818

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 5 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079.exe
    "C:\Users\Admin\AppData\Local\Temp\63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1656
    • 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\63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2900
    • 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:2572
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\deZVtbExkPfJNa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp475C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2508
    • C:\Users\Admin\AppData\Local\Temp\63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079.exe
      "C:\Users\Admin\AppData\Local\Temp\63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079.exe"
      2⤵
        PID:2520
      • C:\Users\Admin\AppData\Local\Temp\63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079.exe
        "C:\Users\Admin\AppData\Local\Temp\63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2464

    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

    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\Local\Temp\Tar798A.tmp
      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • C:\Users\Admin\AppData\Local\Temp\tmp475C.tmp
      Filesize

      1KB

      MD5

      fc1dd3727de46832ca300053a905ea72

      SHA1

      d777e7c3802ab73394a4618dcc92e8fe56d1af11

      SHA256

      96acecae51994295899b476e59be44816ea8238f812a698faa0f969a0d031f18

      SHA512

      3aee2feb14783818c2f88a6994af9f06a4368ca7adf5b44d022cbd9522d5849b5fc33961c565717d4b44a3efe1a51c51d1e27a70faa86c8abd3471668472c8df

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\27NSF8053T2D7USHHN8P.temp
      Filesize

      7KB

      MD5

      83f3eac9e27289bd979fadf57bdb0efc

      SHA1

      1ea9a80e96e541ae1a1e99548390bc9acbbb8c7e

      SHA256

      d0d3fe991585f4430f99b6e602fce56f224590f7836b5c5c77e28bc10db0db3f

      SHA512

      8867031c4f71d663d127a4baa386ced647d95904eac995f4182f293c1e03716a4f78d9f33b3e30842fd6934ef460bd0d45b8bc3b6ce1544d6ea4c5d6e5b9fc59

    • memory/1656-28-0x0000000074810000-0x0000000074EFE000-memory.dmp
      Filesize

      6.9MB

    • memory/1656-1-0x0000000074810000-0x0000000074EFE000-memory.dmp
      Filesize

      6.9MB

    • memory/1656-2-0x0000000007240000-0x0000000007280000-memory.dmp
      Filesize

      256KB

    • memory/1656-3-0x00000000005E0000-0x00000000005FA000-memory.dmp
      Filesize

      104KB

    • memory/1656-4-0x0000000000590000-0x000000000059C000-memory.dmp
      Filesize

      48KB

    • memory/1656-5-0x0000000007880000-0x0000000007904000-memory.dmp
      Filesize

      528KB

    • memory/1656-0-0x00000000001A0000-0x000000000025E000-memory.dmp
      Filesize

      760KB

    • memory/2464-31-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2464-43-0x00000000021E0000-0x0000000002220000-memory.dmp
      Filesize

      256KB

    • memory/2464-26-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2464-22-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2464-29-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2464-20-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2464-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/2464-83-0x00000000021E0000-0x0000000002220000-memory.dmp
      Filesize

      256KB

    • memory/2464-82-0x0000000073510000-0x0000000073BFE000-memory.dmp
      Filesize

      6.9MB

    • memory/2464-18-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2464-19-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/2464-41-0x0000000073510000-0x0000000073BFE000-memory.dmp
      Filesize

      6.9MB

    • memory/2572-33-0x000000006F360000-0x000000006F90B000-memory.dmp
      Filesize

      5.7MB

    • memory/2572-39-0x0000000001CF0000-0x0000000001D30000-memory.dmp
      Filesize

      256KB

    • memory/2572-38-0x0000000001CF0000-0x0000000001D30000-memory.dmp
      Filesize

      256KB

    • memory/2572-44-0x000000006F360000-0x000000006F90B000-memory.dmp
      Filesize

      5.7MB

    • memory/2572-36-0x000000006F360000-0x000000006F90B000-memory.dmp
      Filesize

      5.7MB

    • memory/2572-34-0x0000000001CF0000-0x0000000001D30000-memory.dmp
      Filesize

      256KB

    • memory/2900-40-0x0000000002810000-0x0000000002850000-memory.dmp
      Filesize

      256KB

    • memory/2900-42-0x000000006F360000-0x000000006F90B000-memory.dmp
      Filesize

      5.7MB

    • memory/2900-37-0x000000006F360000-0x000000006F90B000-memory.dmp
      Filesize

      5.7MB

    • memory/2900-35-0x0000000002810000-0x0000000002850000-memory.dmp
      Filesize

      256KB

    • memory/2900-32-0x000000006F360000-0x000000006F90B000-memory.dmp
      Filesize

      5.7MB