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Analysis

  • max time kernel
    70s
  • max time network
    69s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2022, 11:23

General

  • Target

    INVOICE.exe

  • Size

    924KB

  • MD5

    ef6a8631e2ef9254a647106872815787

  • SHA1

    9149ed25102187a42bf8668a1b0426e1be63bc4a

  • SHA256

    6f9a61bb7b17a4cb23733695d0c74ed1dff8d0645c2ee68f74b2cd6716baacd6

  • SHA512

    90dad9ee231a1b6fb9d057677a76f2aebb36c5cb3224634eec88826524423cb9cc5c1bd2dc5e7792cd9de0458999306799e201166c076854a60de62fbb3fbef8

  • SSDEEP

    12288:BiDg/A7YM21pisudT+i6Z0r7azvNvLBEet1imkRPuZb3TZj4ooHApUfrwY4p:Blppz67cvNFEU1imIq3ljfUfrwY4p

Malware Config

Signatures

  • AgentTesla

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

  • Drops file in Drivers directory 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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). 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PiuhWRUjFj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp84E9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1972
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:976

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp84E9.tmp

    Filesize

    1KB

    MD5

    25953af73000c4d4909fe966ddc25013

    SHA1

    2c9eba488a442403f50461bf3b276734fed8f95f

    SHA256

    7de35cddbd227baaa40718c024893b7b89353987472b3f19745d8b368a2eead9

    SHA512

    e022fee09e134568fb6f9a0a8f27bdc9043ca5675fb5d82b4a51af0a7cfdc675dbb61e495d108fe39995b3a3a2e8ff4af7c00add404b321c51549fd4f938bfb0

  • memory/976-64-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/976-66-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/976-71-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/976-69-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/976-65-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/976-61-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/976-62-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/1824-54-0x0000000000D00000-0x0000000000DEC000-memory.dmp

    Filesize

    944KB

  • memory/1824-55-0x0000000075571000-0x0000000075573000-memory.dmp

    Filesize

    8KB

  • memory/1824-56-0x0000000000330000-0x0000000000350000-memory.dmp

    Filesize

    128KB

  • memory/1824-58-0x0000000000C30000-0x0000000000C6A000-memory.dmp

    Filesize

    232KB

  • memory/1824-57-0x0000000005300000-0x000000000537A000-memory.dmp

    Filesize

    488KB