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Analysis

  • max time kernel
    54s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2023, 13:16

General

  • Target

    Bank Slip & Payment Voucher.pdf.exe

  • Size

    704KB

  • MD5

    8cab80e3f4df416eee4c3bf0869246c2

  • SHA1

    b7dc769d67a546d09b6f23ea5e3425d8df1a3dc3

  • SHA256

    b02d91d801822490ae3fa7315323ba054cb72aee687579a81419b7f38925e653

  • SHA512

    b84235c32ed7549c8e3c5f6e21b24d5771401300929ea7333d23329415ab524b42876a956804c847b3d600884b90b607a757508e66bd77ccaa32ef09e4213b9d

  • SSDEEP

    12288:kNgU8WgMEvJJmH2njKHs++/XLpqCkIK69KCgBptF2P+4o8d/cdDNEVU:EgXWgR7mH2njKhAtD9tNgBj6+imdD+6

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5494052141:AAF2aO4sQ_tu4BOnk0pmxB995km7Mslduy0/

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).

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bank Slip & Payment Voucher.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Bank Slip & Payment Voucher.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1304
    • 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\Bank Slip & Payment Voucher.pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1140
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qZHRXGnsgsr.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1464
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qZHRXGnsgsr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC8EB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1992
    • C:\Users\Admin\AppData\Local\Temp\Bank Slip & Payment Voucher.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Bank Slip & Payment Voucher.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1716

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC8EB.tmp

    Filesize

    1KB

    MD5

    a2b23fed5aa41a201125fe3357cc7bb0

    SHA1

    748397d72f10bfbecd54d7d1157ed67e568b391b

    SHA256

    611a17b4d7851780903d8b209442bea9432b2e2556476185c5d5c34d28167f38

    SHA512

    6c97e7dc577bb5f8fe958d819cfb4fcacf67606c34e53b9b848ca97e19037037a4deb6c9dd3b2da6ebc9e1eefef09f5663626dbf301c340fe140cde0650646a8

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\NNU08JOUZQT4RXHTMM3A.temp

    Filesize

    7KB

    MD5

    82af322711decd06eed34ddba36d2a23

    SHA1

    43da3f86622577a58df052043217f0aff0378996

    SHA256

    6f986712af8feb27233ab7c7ff0dd17f84cb2eafdce599b7fafe77c95a1026c1

    SHA512

    31bee08f221ece4bc7a6adfa56fb0e1fff12b8ef9f1835b20113d1d83b736e3b0130b3aae653fbec0c4cf2c99c7db19f23fe1bfff5599edb89a24623fd625dc5

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    82af322711decd06eed34ddba36d2a23

    SHA1

    43da3f86622577a58df052043217f0aff0378996

    SHA256

    6f986712af8feb27233ab7c7ff0dd17f84cb2eafdce599b7fafe77c95a1026c1

    SHA512

    31bee08f221ece4bc7a6adfa56fb0e1fff12b8ef9f1835b20113d1d83b736e3b0130b3aae653fbec0c4cf2c99c7db19f23fe1bfff5599edb89a24623fd625dc5

  • memory/1140-83-0x0000000002680000-0x00000000026C0000-memory.dmp

    Filesize

    256KB

  • memory/1304-55-0x0000000001270000-0x00000000012B0000-memory.dmp

    Filesize

    256KB

  • memory/1304-56-0x0000000000540000-0x0000000000552000-memory.dmp

    Filesize

    72KB

  • memory/1304-57-0x0000000001270000-0x00000000012B0000-memory.dmp

    Filesize

    256KB

  • memory/1304-58-0x0000000000640000-0x000000000064C000-memory.dmp

    Filesize

    48KB

  • memory/1304-59-0x0000000005DD0000-0x0000000005E50000-memory.dmp

    Filesize

    512KB

  • memory/1304-72-0x0000000005F90000-0x0000000005FDA000-memory.dmp

    Filesize

    296KB

  • memory/1304-54-0x00000000013B0000-0x0000000001466000-memory.dmp

    Filesize

    728KB

  • memory/1464-84-0x0000000002690000-0x00000000026D0000-memory.dmp

    Filesize

    256KB

  • memory/1716-73-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1716-76-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1716-77-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1716-78-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1716-80-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1716-82-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1716-75-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1716-74-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB