Resubmissions

17-01-2021 19:18

210117-5hwxlye88x 10

17-01-2021 17:05

210117-6jkt8jz44e 10

17-01-2021 10:25

210117-ncy8vksfgn 10

Analysis

  • max time kernel
    140s
  • max time network
    22s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    17-01-2021 19:18

General

  • Target

    2e1deb95bfe713cf40cbb21b3821a83bb1d3cdda412ce78456e3e31741034cf0.exe

  • Size

    1.8MB

  • MD5

    5cb0d38498c5fc6e34ae337ffc19b2f6

  • SHA1

    49d1633f21e953e11bc3dc29040277ca47804c13

  • SHA256

    2e1deb95bfe713cf40cbb21b3821a83bb1d3cdda412ce78456e3e31741034cf0

  • SHA512

    85ad630c54dda9bd0e7c1132c13d2680c62ead849b1d9fb42fee252e0b030ca935080a933887931ae45574c7e2d9210d6bfc101f8d510e27700461e1cc22ffdc

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e1deb95bfe713cf40cbb21b3821a83bb1d3cdda412ce78456e3e31741034cf0.exe
    "C:\Users\Admin\AppData\Local\Temp\2e1deb95bfe713cf40cbb21b3821a83bb1d3cdda412ce78456e3e31741034cf0.exe"
    1⤵
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:364
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\bmaitessiox.exe"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      PID:412
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\thwqufo.exe"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      PID:1812
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\wdungmnwwpkw.exe"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      PID:960

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/364-5-0x0000000000911000-0x0000000000935000-memory.dmp

    Filesize

    144KB

  • memory/364-15-0x0000000002330000-0x0000000002331000-memory.dmp

    Filesize

    4KB

  • memory/364-4-0x00000000757E1000-0x00000000757E3000-memory.dmp

    Filesize

    8KB

  • memory/364-11-0x0000000000540000-0x0000000000541000-memory.dmp

    Filesize

    4KB

  • memory/364-12-0x0000000000550000-0x0000000000551000-memory.dmp

    Filesize

    4KB

  • memory/364-10-0x0000000002320000-0x0000000002321000-memory.dmp

    Filesize

    4KB

  • memory/364-9-0x00000000008F0000-0x00000000008F1000-memory.dmp

    Filesize

    4KB

  • memory/364-3-0x0000000004FF0000-0x0000000005001000-memory.dmp

    Filesize

    68KB

  • memory/364-7-0x0000000000840000-0x0000000000841000-memory.dmp

    Filesize

    4KB

  • memory/364-6-0x00000000008E0000-0x00000000008E1000-memory.dmp

    Filesize

    4KB

  • memory/364-8-0x0000000000900000-0x0000000000901000-memory.dmp

    Filesize

    4KB

  • memory/364-2-0x0000000004BE0000-0x0000000004BF1000-memory.dmp

    Filesize

    68KB

  • memory/364-14-0x00000000004F0000-0x00000000004F1000-memory.dmp

    Filesize

    4KB

  • memory/412-18-0x00000000007E0000-0x00000000007E1000-memory.dmp

    Filesize

    4KB

  • memory/612-13-0x000007FEF7F80000-0x000007FEF81FA000-memory.dmp

    Filesize

    2.5MB

  • memory/960-24-0x0000000000540000-0x0000000000541000-memory.dmp

    Filesize

    4KB

  • memory/1812-21-0x00000000004F0000-0x00000000004F1000-memory.dmp

    Filesize

    4KB