Overview

overview

10

Static

static

3

Nihon.exe

windows10-1703-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    22-05-2024 20:00

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General

  • Target

    Nihon.exe

  • Size

    12.7MB

  • MD5

    26b058dde37aedb08da5bb55fb38570e

  • SHA1

    d3bd14485f02571243540c6df24fa8fb5ac00d00

  • SHA256

    5c2575405d4d2c904ae43fa36a5787999f334f531b7f1d1a43028369ba9368c6

  • SHA512

    32c6c21401241b024a912c47790a716f580796822e97a2842b61067d5b0b7f916314be3a721b5901d1184cd49a608ad63bb26fdeea682d8c81e820b562d9980b

  • SSDEEP

    196608:kuMJHRhINicdkxGnOICwuY+5F4XUJGPrjMxQZEPdlO+si:kRHVcdkx3ICw8IEUj5klt

Score
10/10

Malware Config

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Drops file in Windows directory 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 40 IoCs
  • Suspicious use of SendNotifyMessage 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Nihon.exe
    "C:\Users\Admin\AppData\Local\Temp\Nihon.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1504
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3180
    • C:\Users\Admin\Desktop\Nihon.exe
      "C:\Users\Admin\Desktop\Nihon.exe"
      1⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:376
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1676
    • C:\Windows\system32\werfault.exe
      werfault.exe /h /shared Global\a52458eb29d443fda1976a1e9a30fd44 /t 1880 /p 376
      1⤵
        PID:1900
      • C:\Users\Admin\Desktop\poop\Nihon.exe
        "C:\Users\Admin\Desktop\poop\Nihon.exe"
        1⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4104

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Initial Access

      Execution

      Persistence

      Privilege Escalation

      Defense Evasion

      Credential Access

      Discovery

      Query Registry

      1
      T1012

      Peripheral Device Discovery

      1
      T1120

      System Information Discovery

      1
      T1082

      Lateral Movement

      Collection

      Exfiltration

      Command and Control

      Web Service

      1
      T1102

      Impact

      Resource Development

      Reconnaissance

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • \Users\Admin\AppData\Local\Temp\614ef9629bca408ab32fafb4bb8cadff\WebView2Loader.dll
        Filesize

        133KB

        MD5

        a0bd0d1a66e7c7f1d97aedecdafb933f

        SHA1

        dd109ac34beb8289030e4ec0a026297b793f64a3

        SHA256

        79d7e45f8631e8d2541d01bfb5a49a3a090be72b3d465389a2d684680fee2e36

        SHA512

        2a50ae5c7234a44b29f82ebc2e3cfed37bf69294eb00b2dc8905c61259975b2f3a059c67aeab862f002752454d195f7191d9b82b056f6ef22d6e1b0bb3673d50

        Download Submit
      • memory/376-16-0x00000175EDB10000-0x00000175EDBC2000-memory.dmp
        Filesize

        712KB

        Download
      • memory/376-17-0x00000175EDCF0000-0x00000175EDD12000-memory.dmp
        Filesize

        136KB

        Download
      • memory/1504-7-0x000001D93F370000-0x000001D93F38A000-memory.dmp
        Filesize

        104KB

        Download
      • memory/1504-13-0x00007FFC02D80000-0x00007FFC0376C000-memory.dmp
        Filesize

        9.9MB

        Download
      • memory/1504-8-0x000001D957E60000-0x000001D9587F0000-memory.dmp
        Filesize

        9.6MB

        Download
      • memory/1504-9-0x000001D95C210000-0x000001D95C218000-memory.dmp
        Filesize

        32KB

        Download
      • memory/1504-10-0x000001D95C700000-0x000001D95C738000-memory.dmp
        Filesize

        224KB

        Download
      • memory/1504-11-0x00007FFC02D80000-0x00007FFC0376C000-memory.dmp
        Filesize

        9.9MB

        Download
      • memory/1504-12-0x00007FFC02D80000-0x00007FFC0376C000-memory.dmp
        Filesize

        9.9MB

        Download
      • memory/1504-0-0x00007FFC02D83000-0x00007FFC02D84000-memory.dmp
        Filesize

        4KB

        Download
      • memory/1504-6-0x00007FFC02D80000-0x00007FFC0376C000-memory.dmp
        Filesize

        9.9MB

        Download
      • memory/1504-1-0x000001D93CAA0000-0x000001D93D752000-memory.dmp
        Filesize

        12.7MB

        Download
      • memory/4104-24-0x000002476D6C0000-0x000002476D736000-memory.dmp
        Filesize

        472KB

        Download
      • memory/4104-25-0x000002476D680000-0x000002476D69E000-memory.dmp
        Filesize

        120KB

        Download
      • memory/4104-28-0x000002476C980000-0x000002476C988000-memory.dmp
        Filesize

        32KB

        Download
      • memory/4104-29-0x0000024767CC0000-0x0000024767D04000-memory.dmp
        Filesize

        272KB

        Download
      • memory/4104-30-0x0000024767D20000-0x0000024767D2C000-memory.dmp
        Filesize

        48KB

        Download
      • memory/4104-31-0x0000024767E90000-0x0000024767EC0000-memory.dmp
        Filesize

        192KB

        Download