Overview

overview

8

Static

static

8

45659c8b8a...3e.exe

windows7_x64

8

45659c8b8a...3e.exe

windows10_x64

8

Resubmissions

30/08/2022, 13:11

220830-qeyfnsaha8 8

22/01/2021, 10:07

210122-7vwcckmmtj 8

Analysis

  • max time kernel
    149s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    22/01/2021, 10:07

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General

  • Target

    45659c8b8a21158dbad3a15a174a42f923c6c179d9dcc3168d64f89cd9f1433e.exe

  • Size

    149KB

  • MD5

    fdbd0ccb8d0bea52f95cedb51c3de9e9

  • SHA1

    d6fa30eeb170c70fc3892429df2872372b3cef48

  • SHA256

    45659c8b8a21158dbad3a15a174a42f923c6c179d9dcc3168d64f89cd9f1433e

  • SHA512

    3457221f4ef4e0e79f694f89b30c36fe731037f1565aae49d9b0bb151c6e50fb0523c0f7a82ba333726bd2f9822561e3ee794bacc1e8f052ea9a3a7d5bcbe3d0

Score
8/10
persistenceransomwarespywareupx

Malware Config

Signatures

  • Modifies Installed Components in the registry 2 TTPs
    persistence
  • Modifies extensions of user files 6 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • UPX packed file 1 IoCs

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

    upx
  • Drops startup file 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spyware
  • Drops desktop.ini file(s) 72 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    ransomware
  • Drops file in Program Files directory 22364 IoCs
  • Drops file in Windows directory 1 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 12 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Control Panel 5 IoCs
    evasion
  • Modifies registry class 33 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of FindShellTrayWindow 47 IoCs
  • Suspicious use of SendNotifyMessage 26 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\45659c8b8a21158dbad3a15a174a42f923c6c179d9dcc3168d64f89cd9f1433e.exe
    "C:\Users\Admin\AppData\Local\Temp\45659c8b8a21158dbad3a15a174a42f923c6c179d9dcc3168d64f89cd9f1433e.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Drops file in Windows directory
    PID:812
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 3048 -s 5992
    1⤵
    • Program crash
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4060
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Checks SCSI registry key(s)
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:188
  • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
    1⤵
    • Enumerates system info in registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2328
  • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
    "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
    1⤵
    • Modifies Control Panel
    • Suspicious use of SetWindowsHookEx
    PID:2908

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/812-2-0x00007FF6D8A40000-0x00007FF6D8AAD000-memory.dmp

    Filesize

    436KB

    Download

  • memory/4060-4-0x0000027781400000-0x0000027781401000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4060-5-0x0000027781400000-0x0000027781401000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4060-6-0x0000027781400000-0x0000027781401000-memory.dmp

    Filesize

    4KB

    Download