Overview

overview

8

Static

static

Yvbhq.exe

windows7-x64

8

Yvbhq.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    159s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-11-2022 08:19

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    Yvbhq.exe

  • Size

    65KB

  • MD5

    9829cba45d96db58f0898ad58743a474

  • SHA1

    a3f4827d0523dac0c56e91b4538bdcf14c36570f

  • SHA256

    19d2e3e1f912a1fe23399b0a1c150e28e03ef0cff5dfb7d2d532f705769862b5

  • SHA512

    bd4d6431ca4315ad21a1094594ca0cb68a5cca689b64b73876045e468d1ba1c03d6845b444d2936ea50e71438b44ef65fdd74ca22d2339472f2f6e53be90cd8a

  • SSDEEP

    1536:pmV+3Z/ZBJEomaAsurFk5ZjXx+plbfP9HPe0/v7WYPwoMkeT1eK6G:I+JtEomapYFk5ZsFP9HmelqT1N6G

Score
8/10
evasionpersistence

Malware Config

Signatures

  • Stops running service(s) 3 TTPs
    evasion
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Discovers systems in the same network 1 TTPs 1 IoCs
    discovery
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Yvbhq.exe
    "C:\Users\Admin\AppData\Local\Temp\Yvbhq.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd.exe" /C sc delete VSS
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:952
      • C:\Windows\system32\sc.exe
        sc delete VSS
        3⤵
        • Launches sc.exe
        PID:932
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd.exe" /C NET VIEW
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3644
      • C:\Windows\system32\net.exe
        NET VIEW
        3⤵
        • Discovers systems in the same network
        PID:4908
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd.exe" /C NET USE
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3204
      • C:\Windows\system32\net.exe
        NET USE
        3⤵
          PID:2264

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Impair Defenses

    1
    T1562

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Remote System Discovery

    1
    T1018

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Service Stop

    1
    T1489

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2891029575-1462575-1165213807-1000\desktop.ini
      Filesize

      203B

      MD5

      1247a05311845ed4683182c6b3c7ad24

      SHA1

      ce60f8bde7ba34d8099f2a484fceff6a7d067b1d

      SHA256

      51587e2a4348fd17a92685998772a67af5a54e3e3fcc7706652fd30bee87b7d7

      SHA512

      d437cca238996e46e85e8399fce1ef797d2a486ced01d0283f1343a81ad41727015bd54435b286e7911b3e668fc7798caec0d9bf6603e3661107c3c8d8d93fd5

      Download Submit
    • memory/932-135-0x0000000000000000-mapping.dmp
      Download
    • memory/952-134-0x0000000000000000-mapping.dmp
      Download
    • memory/2264-140-0x0000000000000000-mapping.dmp
      Download
    • memory/3204-139-0x0000000000000000-mapping.dmp
      Download
    • memory/3644-136-0x0000000000000000-mapping.dmp
      Download
    • memory/4612-132-0x0000000000F10000-0x0000000000F26000-memory.dmp
      Filesize

      88KB

      Download
    • memory/4612-133-0x00007FFFEE480000-0x00007FFFEEF41000-memory.dmp
      Filesize

      10.8MB

      Download
    • memory/4612-138-0x00007FFFEE480000-0x00007FFFEEF41000-memory.dmp
      Filesize

      10.8MB

      Download
    • memory/4908-137-0x0000000000000000-mapping.dmp
      Download