Analysis

  • max time kernel
    46s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2022 07:24

General

  • Target

    cdad9b1d8116ae6b1b52f9fe139d271cd41ee053ed03fc57c767dc5ea8341d34.exe

  • Size

    36KB

  • MD5

    22f609b7f4bfb41f44eaf17045c9c336

  • SHA1

    bf4845a31a2024f91f7d7ef9d6541dce88efb7f0

  • SHA256

    cdad9b1d8116ae6b1b52f9fe139d271cd41ee053ed03fc57c767dc5ea8341d34

  • SHA512

    f0a12ff08a32b2359cfee5589131d03f135909cecb1e9757f22e8f7fe7f82056676a3cddaa27f3fd6166c739fec70ea2680fb643e0e1ce831c1017f403fb21f1

  • SSDEEP

    768:/yT1HMQozvG6RualXL2jBLu0TFhLt+0dc5DA:/y5Mh3pqrtjWDA

Malware Config

Signatures

  • Possible privilege escalation attempt 2 IoCs
  • Modifies file permissions 1 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies Internet Explorer start page 1 TTPs 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cdad9b1d8116ae6b1b52f9fe139d271cd41ee053ed03fc57c767dc5ea8341d34.exe
    "C:\Users\Admin\AppData\Local\Temp\cdad9b1d8116ae6b1b52f9fe139d271cd41ee053ed03fc57c767dc5ea8341d34.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:960
    • C:\Windows\SysWOW64\takeown.exe
      C:\Windows\system32\takeown.exe /f "C:\Windows\system32\oghw.exe"
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:2008
    • C:\Windows\SysWOW64\icacls.exe
      C:\Windows\system32\icacls.exe "C:\Windows\system32\oghw.exe" /grant Users:F
      2⤵
      • Possible privilege escalation attempt
      • Modifies file permissions
      PID:1376
    • C:\Windows\SysWOW64\regini.exe
      C:\Windows\system32\\regini.exe "C:\Users\Admin\AppData\Local\Temp\cYJKmre.ini"
      2⤵
      • Modifies Internet Explorer settings
      • Modifies Internet Explorer start page
      PID:688

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

3
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\cYJKmre.ini
    Filesize

    633B

    MD5

    307edf4a3258717302e3d2ba7865ec69

    SHA1

    faa9b10078b3ee200bea0cb2645157843a8e4908

    SHA256

    bc4f3fa5dc6d89b482f4f09363cf82b6c6500b853b4d5fe3c589c4dc6601bf9a

    SHA512

    dfaa7e643e0c477701cce3de1aba8d506a1063d72547d760bcc76c274dd9069ad6529dfe341ff4202a8d50aabaa712db4c76928cc455fefb3f1601cf85558715

  • C:\Windows\SysWOW64\oghw.exe
    Filesize

    36KB

    MD5

    22f609b7f4bfb41f44eaf17045c9c336

    SHA1

    bf4845a31a2024f91f7d7ef9d6541dce88efb7f0

    SHA256

    cdad9b1d8116ae6b1b52f9fe139d271cd41ee053ed03fc57c767dc5ea8341d34

    SHA512

    f0a12ff08a32b2359cfee5589131d03f135909cecb1e9757f22e8f7fe7f82056676a3cddaa27f3fd6166c739fec70ea2680fb643e0e1ce831c1017f403fb21f1

  • memory/688-59-0x0000000000000000-mapping.dmp
  • memory/1376-57-0x0000000000000000-mapping.dmp
  • memory/2008-56-0x0000000000000000-mapping.dmp