Overview

overview

8

Static

static

8

4b20a98260...cc.exe

windows7-x64

8

4b20a98260...cc.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    90s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-10-2022 23:29

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General

  • Target

    4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe

  • Size

    350KB

  • MD5

    391233b3c78fd9b2a7a869e078b84980

  • SHA1

    793e261a01b2cc15d168f5bfb5a84c4efb67e7eb

  • SHA256

    4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc

  • SHA512

    260e1bb17b0086cf4fca441a0d733b1d740b3ad788a375fbfa4a47b13db99ea2d7e745e1ba902bad2806a8becaa23e3907037b085cf9be93c65bcb08e0875c69

  • SSDEEP

    6144:TyXu7IEBSsQ9ElMwm60lmqs7MTRGA3h3GVqdppJXEGhBukJF/KAwxFUOWdEmh:T3BdQLL4BE93NGVYZX9BukJlwxSJdEm

Score
8/10
adwarediscoveryexploitpersistencestealerupx

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Possible privilege escalation attempt 2 IoCs
    exploit
  • Sets service image path in registry 2 TTPs 2 IoCs
    persistence
  • UPX packed file 3 IoCs

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

    upx
  • Modifies file permissions 1 TTPs 2 IoCs
    discovery
  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

    stealeradware
  • Drops file in System32 directory 5 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe
    "C:\Users\Admin\AppData\Local\Temp\4b20a982607896306d1cd9db1e36c7f0b867e4bbda851d66f5a6cb62df11fbcc.exe"
    1⤵
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: LoadsDriver
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4308
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c takeown /f C:\Windows\SysWOW64\wshtcpip.dll && icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1940
      • C:\Windows\SysWOW64\takeown.exe
        takeown /f C:\Windows\SysWOW64\wshtcpip.dll
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        • Suspicious use of AdjustPrivilegeToken
        PID:2348
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\SysWOW64\wshtcpip.dll /grant administrators:F
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:1440
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      2⤵
        PID:1692

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Browser Extensions

    1
    T1176

    Privilege Escalation

    Defense Evasion

    Modify Registry

    2
    T1112

    File Permissions Modification

    1
    T1222

    Credential Access

    Discovery

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\ahnmove.bat
      Filesize

      181B

      MD5

      f3e9bc722d9822e59176e52ee1b07578

      SHA1

      94368e3df235344f89263dafe5eb300ad10b5f27

      SHA256

      9d612d10a1def75ba27ce71b77afd710cb89ee480233fa476dddb3610e4dd99d

      SHA512

      233eb8dce286f86bbe0aadc76488c0bc587906407bffd71b73c9e8fd728cba48e0d08ccfb55b73a0ed01caffc2931f6ccc861c4d47e6f0b81a7211c535c1d09b

      Download Submit
    • memory/1440-136-0x0000000000000000-mapping.dmp
      Download
    • memory/1692-137-0x0000000000000000-mapping.dmp
      Download
    • memory/1940-134-0x0000000000000000-mapping.dmp
      Download
    • memory/2348-135-0x0000000000000000-mapping.dmp
      Download
    • memory/4308-132-0x0000000001000000-0x000000000112D000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/4308-133-0x0000000001000000-0x000000000112D000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/4308-139-0x0000000001000000-0x000000000112D000-memory.dmp
      Filesize

      1.2MB

      Download