Overview

overview

10

Static

static

intervpnmix2_1.exe

windows7_x64

10

intervpnmix2_1.exe

windows10_x64

9

Analysis

  • max time kernel
    17s
  • max time network
    66s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    16-01-2021 19:19

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General

  • Target

    intervpnmix2_1.exe

  • Size

    9.0MB

  • MD5

    aa1515279a03f6726d34f9f97ad3ecce

  • SHA1

    4a73a63691bbdf15af411ca1bd9c7bfc85110f32

  • SHA256

    dc1338766ff9398ff8d68c77e43143a4028ff389ff0231bd941869add11241b0

  • SHA512

    157e283e27613601c84692f85125d62c6301db16447eccc72a5118e11913689ab4194d140f0dd99ad0d7776618c8ea301c13e304491ba4277142ebcb36ed8153

Score
9/10
evasion

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
    evasion
  • Executes dropped EXE 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 2 IoCs

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

    evasion
  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Program Files directory 44 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\intervpnmix2_1.exe
    "C:\Users\Admin\AppData\Local\Temp\intervpnmix2_1.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Program Files (x86)\InterVpn\InterVpn\InterVpn\bin\InterVpn\vruns.exe
      "C:\Program Files (x86)\InterVpn\InterVpn\InterVpn\bin\InterVpn\vruns.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:3784
    • C:\Program Files (x86)\InterVpn\InterVpn\InterVpn\bin\InterVpn\intervpnmix2.exe
      "C:\Program Files (x86)\InterVpn\InterVpn\InterVpn\bin\InterVpn\intervpnmix2.exe"
      2⤵
      • Executes dropped EXE
      • Checks BIOS information in registry
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      PID:3284

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Replay Monitor

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Downloads

  • C:\Program Files (x86)\InterVpn\InterVpn\InterVpn\bin\InterVpn\intervpnmix2.exe
    MD5

    f26dc42b3ce20aaaff3bc059ad1ee51d

    SHA1

    1bdd627c3804ec84c70c514590da0b1f09513a46

    SHA256

    493c3a5440c0025f8f1154bcc002f109872f2dab955a43169583594dcab485e3

    SHA512

    2e6c7832db631be5717e246f1d5f6677c0344109fa35f7a88f8955f0fa437184fa09961ac94b8e55b45a3b9da30f3aa6251c0be94e6a391d69cb0a5c81ba8601

    Download Submit
  • C:\Program Files (x86)\InterVpn\InterVpn\InterVpn\bin\InterVpn\vruns.exe
    MD5

    08b6bafe40b9d0a5a3663567dfaf67fe

    SHA1

    b1496d662a9178fa6cdba42d3639ccb148b3d015

    SHA256

    e310096e361a558c51ff56f42c2639aba9027c02030888604e0f1c51afb06573

    SHA512

    27e38e1ef087bc543c51bf3fad3f4e3ada0297ecedac988d60e677fd813669cc64b1c950e9cbdce4e69a3158554f9e5d63c5e16755c042b7d2fe283bd0f00b59

    Download Submit
  • \Users\Admin\AppData\Local\Temp\nsa548F.tmp\UAC.dll
    MD5

    adb29e6b186daa765dc750128649b63d

    SHA1

    160cbdc4cb0ac2c142d361df138c537aa7e708c9

    SHA256

    2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08

    SHA512

    b28adcccf0c33660fecd6f95f28f11f793dc9988582187617b4c113fb4e6fdad4cf7694cd8c0300a477e63536456894d119741a940dda09b7df3ff0087a7eada

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  • memory/3284-5-0x0000000000000000-mapping.dmp
    Download
  • memory/3284-10-0x000000000A0A0000-0x000000000A0A1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3284-9-0x00000000098A0000-0x00000000098A1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3284-11-0x00000000098A0000-0x00000000098A1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3784-3-0x0000000000000000-mapping.dmp
    Download
  • memory/3784-7-0x0000000004470000-0x0000000004471000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3784-8-0x0000000004C70000-0x0000000004C71000-memory.dmp
    Filesize

    4KB

    Download