Analysis

  • max time kernel
    252s
  • max time network
    336s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    05-05-2023 20:46

General

  • Target

    INVOICE_.exe

  • Size

    1.0MB

  • MD5

    d01af08af1935589ed6974734f764f5a

  • SHA1

    75d31c4f55e98d500abac8a5ab304a559283e9e5

  • SHA256

    f7c5b46a0b80bd17ec7af21458bbc2cd7c0873f81218475013b50953a72a887f

  • SHA512

    958a8efa7867077c7dbf66b21090d9186d4757e9f71895ed04ea48d6ba0f79b1a2d7789710921a15f0cdc5d83bf1d5d10260445982555e58bf96101aed026e7c

  • SSDEEP

    24576:vXOGXrxgZIYdflxH28iLJ6fLOscta6VQz5CZporN2OtOzy:vX3rx43g8iLJkLOjs6VkCZ2x1

Score
10/10

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot6246601421:AAFrAwaqm-G2V9ysvgyBq2dzNs5Gp-CKwaw/sendMessage?chat_id=5523238206

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE_.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE_.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:588
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\PqhyBiwUgJm.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:560
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PqhyBiwUgJm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp52C3.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:872
    • C:\Users\Admin\AppData\Local\Temp\INVOICE_.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE_.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1516

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp52C3.tmp

    Filesize

    1KB

    MD5

    3416cb85a669556a625f7d3f4e8dc24a

    SHA1

    99dcb7db3fa113c339885293227f7f71542f2441

    SHA256

    196fc036664ff2a00c67eb040c18c9de54d7d3fb9f92ef6ce973b74591a95e00

    SHA512

    6d003082129b0dbbefea4e649ea688e742fa9c434d5e936eb96ea01bc3c89559dc050750891ac9fed6ea7c2d6fe4313362fa3748ac6b270ac0167c7e8218ac45

  • memory/560-70-0x0000000002120000-0x0000000002160000-memory.dmp

    Filesize

    256KB

  • memory/560-69-0x0000000002120000-0x0000000002160000-memory.dmp

    Filesize

    256KB

  • memory/560-67-0x0000000002120000-0x0000000002160000-memory.dmp

    Filesize

    256KB

  • memory/588-58-0x00000000005E0000-0x00000000005EC000-memory.dmp

    Filesize

    48KB

  • memory/588-72-0x000000000A280000-0x000000000A316000-memory.dmp

    Filesize

    600KB

  • memory/588-54-0x00000000008E0000-0x00000000009EE000-memory.dmp

    Filesize

    1.1MB

  • memory/588-57-0x00000000049A0000-0x00000000049E0000-memory.dmp

    Filesize

    256KB

  • memory/588-56-0x00000000049A0000-0x00000000049E0000-memory.dmp

    Filesize

    256KB

  • memory/588-55-0x0000000000420000-0x000000000042E000-memory.dmp

    Filesize

    56KB

  • memory/588-71-0x000000000A1E0000-0x000000000A27E000-memory.dmp

    Filesize

    632KB

  • memory/588-59-0x0000000005800000-0x00000000058D2000-memory.dmp

    Filesize

    840KB

  • memory/1516-73-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

  • memory/1516-74-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

  • memory/1516-75-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

  • memory/1516-77-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1516-80-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB

  • memory/1516-83-0x0000000000400000-0x0000000000496000-memory.dmp

    Filesize

    600KB