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
    137s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    17-01-2021 10:25

General

  • Target

    1d6d8960e8999bed25a88c4b9c8ad5f92f5314f2b50a012bcc7a6873ddcba25d.exe

  • Size

    1.9MB

  • MD5

    68f146252671d1b383a8dd88400461c2

  • SHA1

    882571d799c61fb29b3dac4d713bc7c06f92f9f4

  • SHA256

    1d6d8960e8999bed25a88c4b9c8ad5f92f5314f2b50a012bcc7a6873ddcba25d

  • SHA512

    8b99e603acdda4b8383fa3d553e71431b9addbc1ff5c195664530e18346fad7692254e60a739252bb53366f07f10aa9c2a65e078a4ec733be028dfaac7e7deef

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\1d6d8960e8999bed25a88c4b9c8ad5f92f5314f2b50a012bcc7a6873ddcba25d.exe
    "C:\Users\Admin\AppData\Local\Temp\1d6d8960e8999bed25a88c4b9c8ad5f92f5314f2b50a012bcc7a6873ddcba25d.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:1848
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\xgurvwir.exe"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      PID:1832
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\qaojues.exe"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      PID:956
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\eavyjdtkyjq.exe"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      PID:1852

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1060-4-0x000007FEF6010000-0x000007FEF628A000-memory.dmp

    Filesize

    2.5MB

  • memory/1848-2-0x0000000004720000-0x0000000004731000-memory.dmp

    Filesize

    68KB

  • memory/1848-3-0x0000000004B30000-0x0000000004B41000-memory.dmp

    Filesize

    68KB