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Analysis

  • max time kernel
    69s
  • max time network
    72s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    09/10/2022, 09:55

General

  • Target

    Porformant Invoice.exe

  • Size

    958KB

  • MD5

    49b19764de980c5cafc0618081f76d82

  • SHA1

    326e54e1c873f42ee4b580fbbd768066840c1489

  • SHA256

    65a4a789f106ee9731dfa6e4afe2f09b4db15170c6d925332dd20f97d1fbdf2c

  • SHA512

    ac70a9c81b997612aef3a41b28bc8c93cb3968f32ebda05c804ba9dc222e4130cafd48a2b2898b99fb1d6fb0f1a55751458bbbb3ebdc90d95d667655c1c7c9a3

  • SSDEEP

    12288:J2iNsJ2uuJTgnbfybNhOIlCJPqGhiqBtfA3CE385Qo1nhsd:J1TpTgnOhIJ36CR5/1S

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5573921253:AAHXKq7lrmioCzUGP-9p7lopfbVX0A_ZdQA/sendDocument

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Porformant Invoice.exe
    "C:\Users\Admin\AppData\Local\Temp\Porformant Invoice.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1380
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TBHdXbkgfCN.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1040
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TBHdXbkgfCN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD49E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1708
    • C:\Users\Admin\AppData\Local\Temp\Porformant Invoice.exe
      "C:\Users\Admin\AppData\Local\Temp\Porformant Invoice.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1280

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD49E.tmp

    Filesize

    1KB

    MD5

    1579d0eeb3984f4002536d0ece01a9c5

    SHA1

    f938b24a5a28b98576eeccb4f9742a96434f4dc7

    SHA256

    2b79449b8ab2eb8d1471b149316acaaa4e925db5795f6980724d41013f1ab940

    SHA512

    0377fc4fdff6d48fb2caf6222fc67d3d041076ad719b5374ee2fdec6b8d8838c19d21010d9b037bb05f00069f3a3b0be6334d2e167670b04a799a1d59f5a47d4

  • memory/1040-77-0x0000000073F20000-0x00000000744CB000-memory.dmp

    Filesize

    5.7MB

  • memory/1040-76-0x0000000073F20000-0x00000000744CB000-memory.dmp

    Filesize

    5.7MB

  • memory/1280-68-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1280-74-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1280-72-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1280-69-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1280-64-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1280-65-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1280-67-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1380-58-0x0000000005BD0000-0x0000000005C66000-memory.dmp

    Filesize

    600KB

  • memory/1380-63-0x0000000004960000-0x000000000499E000-memory.dmp

    Filesize

    248KB

  • memory/1380-54-0x0000000000930000-0x0000000000A26000-memory.dmp

    Filesize

    984KB

  • memory/1380-57-0x00000000003C0000-0x00000000003CC000-memory.dmp

    Filesize

    48KB

  • memory/1380-56-0x00000000003A0000-0x00000000003B8000-memory.dmp

    Filesize

    96KB

  • memory/1380-55-0x0000000075A11000-0x0000000075A13000-memory.dmp

    Filesize

    8KB