Resubmissions

11-08-2022 15:42

220811-s5dkasbch6 10

31-07-2022 21:07

220731-zyandsgda9 10

Analysis

  • max time kernel
    153s
  • max time network
    172s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    11-08-2022 15:42

General

  • Target

    5e31e481438c885932376ed3ea6314d14a59b76c464cccd334de7dba315ffad4.exe

  • Size

    280KB

  • MD5

    ce079d3dad0e1d26bd0fec06249958fc

  • SHA1

    0718bb878a04f653dc31b530579ccb901667ecaa

  • SHA256

    5e31e481438c885932376ed3ea6314d14a59b76c464cccd334de7dba315ffad4

  • SHA512

    65568bf161e9d7b53e34b335b2fc3d3e77fe4b50aaf4004151a1268bedf13ce4082b97eb425ca7ee301b3f5ca5d6a4a2adbed9bafc48561ac2ae111a6f18a10f

Malware Config

Extracted

Family

xtremerat

C2

temp.ibadvisors.co

Signatures

  • Detect XtremeRAT payload 3 IoCs
  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e31e481438c885932376ed3ea6314d14a59b76c464cccd334de7dba315ffad4.exe
    "C:\Users\Admin\AppData\Local\Temp\5e31e481438c885932376ed3ea6314d14a59b76c464cccd334de7dba315ffad4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Users\Admin\AppData\Local\Temp\5e31e481438c885932376ed3ea6314d14a59b76c464cccd334de7dba315ffad4.exe
      "C:\Users\Admin\AppData\Local\Temp\5e31e481438c885932376ed3ea6314d14a59b76c464cccd334de7dba315ffad4.exe"
      2⤵
        PID:820

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/820-57-0x000000001004B900-mapping.dmp
    • memory/820-56-0x0000000010000000-0x000000001004D000-memory.dmp
      Filesize

      308KB

    • memory/820-59-0x0000000075A81000-0x0000000075A83000-memory.dmp
      Filesize

      8KB

    • memory/820-60-0x0000000010000000-0x000000001004D000-memory.dmp
      Filesize

      308KB

    • memory/820-61-0x0000000010000000-0x000000001004D000-memory.dmp
      Filesize

      308KB

    • memory/820-62-0x0000000010000000-0x000000001004D000-memory.dmp
      Filesize

      308KB

    • memory/820-63-0x0000000010000000-0x000000001004D000-memory.dmp
      Filesize

      308KB