Overview

overview

10

Static

static

10

bf37527c52...46.exe

windows7_x64

3

bf37527c52...46.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    15-02-2022 20:45

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General

  • Target

    bf37527c525f1fa0ce174a7cb1d823d16236a4d52fd4e4cb4c0b1ab8c4529146.exe

  • Size

    341KB

  • MD5

    268104622c89c7a922ae0972b94f45e1

  • SHA1

    dce92981da80ea6884155206f4923e4635feaabd

  • SHA256

    bf37527c525f1fa0ce174a7cb1d823d16236a4d52fd4e4cb4c0b1ab8c4529146

  • SHA512

    27a01c7f7f00533d60d5bd54523a14fefbe96f1f824e5c20d44ba547d74aeb8791b2169a41f183c026cc2ec39576d0b4e612d2d85a030e3ff9c5af42ecc34811

Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Drops file in Windows directory 8 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf37527c525f1fa0ce174a7cb1d823d16236a4d52fd4e4cb4c0b1ab8c4529146.exe
    "C:\Users\Admin\AppData\Local\Temp\bf37527c525f1fa0ce174a7cb1d823d16236a4d52fd4e4cb4c0b1ab8c4529146.exe"
    1⤵
      PID:3616
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3616 -s 220
        2⤵
        • Program crash
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1556
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3616 -ip 3616
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:1352
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:3544
    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2856

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/3544-130-0x000001C3DA320000-0x000001C3DA330000-memory.dmp
      Filesize

      64KB

      Download
    • memory/3544-131-0x000001C3DA380000-0x000001C3DA390000-memory.dmp
      Filesize

      64KB

      Download
    • memory/3544-132-0x000001C3DCA60000-0x000001C3DCA64000-memory.dmp
      Filesize

      16KB

      Download