Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-06-2024 01:00

General

  • Target

    Invoice to JH-202304180001.exe

  • Size

    1022KB

  • MD5

    9c37c66c98472fa368e39fefbef31906

  • SHA1

    ca669cb8ad948f50ed48c94e573a777f2675674f

  • SHA256

    7e9ace80bb54631d6c392281fe75cf4e1b171aebbcc863b7e72054931bde64c8

  • SHA512

    adcf9220492402846db88a846ec0a22cbf48b26802ef32a04ca15b86b2a639de9bc6ef9e06bdd1eaca734e33322a0d1423088b5d18f90aed878edef8009d5993

  • SSDEEP

    12288:KMYeaky/Qa0KP1x+kPwu9JXsYGKt/rFfaeX1osP6VAWhc1U233Vtm8Lm3qipIPxg:KMYeuN5iooZVAFb3lNCD6FzCBs+VES

Malware Config

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 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice to JH-202304180001.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice to JH-202304180001.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2168
    • 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\Invoice to JH-202304180001.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2772
    • C:\Users\Admin\AppData\Local\Temp\Invoice to JH-202304180001.exe
      "C:\Users\Admin\AppData\Local\Temp\Invoice to JH-202304180001.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar1491.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/1808-108-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1808-112-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1808-104-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1808-105-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1808-106-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1808-107-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1808-110-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1808-114-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2168-101-0x0000000001F20000-0x0000000001F2E000-memory.dmp

    Filesize

    56KB

  • memory/2168-103-0x0000000005750000-0x00000000057D4000-memory.dmp

    Filesize

    528KB

  • memory/2168-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

    Filesize

    4KB

  • memory/2168-102-0x00000000020F0000-0x0000000002100000-memory.dmp

    Filesize

    64KB

  • memory/2168-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

    Filesize

    6.9MB

  • memory/2168-100-0x0000000000730000-0x0000000000746000-memory.dmp

    Filesize

    88KB

  • memory/2168-1-0x00000000000F0000-0x00000000001F2000-memory.dmp

    Filesize

    1.0MB

  • memory/2168-115-0x00000000743F0000-0x0000000074ADE000-memory.dmp

    Filesize

    6.9MB