Analysis

  • max time kernel
    123s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    15-03-2021 09:50

General

  • Target

    Downloads1/7c207a6ad28507e302b1165849b57a09695482d5c07bae27dcbba92a55163e5f.exe

  • Size

    228KB

  • MD5

    380979b9e21db307888adec96ee96f14

  • SHA1

    c2068fdeb14a2b74a4064d09a125ebdade741758

  • SHA256

    7c207a6ad28507e302b1165849b57a09695482d5c07bae27dcbba92a55163e5f

  • SHA512

    67a3a39b5dde555dbea6e219c8abc5eb53a2fa7495977ffdd70c93fc2228368d3340ef1038ffccefbfbde10d6c5e49e5e8196df24bd0d8aee86bf4901915265e

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Downloads1\7c207a6ad28507e302b1165849b57a09695482d5c07bae27dcbba92a55163e5f.exe
    "C:\Users\Admin\AppData\Local\Temp\Downloads1\7c207a6ad28507e302b1165849b57a09695482d5c07bae27dcbba92a55163e5f.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Users\Admin\AppData\Local\Temp\Downloads1\7c207a6ad28507e302b1165849b57a09695482d5c07bae27dcbba92a55163e5f.exe
      "C:\Users\Admin\AppData\Local\Temp\Downloads1\7c207a6ad28507e302b1165849b57a09695482d5c07bae27dcbba92a55163e5f.exe"
      2⤵
      • Drops file in Drivers directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:896
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
        3⤵
        • Modifies registry key
        PID:1876

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

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Downloads

  • memory/632-11-0x000007FEF63D0000-0x000007FEF664A000-memory.dmp
    Filesize

    2.5MB

  • memory/792-2-0x00000000765E1000-0x00000000765E3000-memory.dmp
    Filesize

    8KB

  • memory/792-3-0x00000000002E0000-0x00000000002E1000-memory.dmp
    Filesize

    4KB

  • memory/792-4-0x00000000002E1000-0x00000000002E2000-memory.dmp
    Filesize

    4KB

  • memory/896-5-0x0000000000400000-0x0000000000438000-memory.dmp
    Filesize

    224KB

  • memory/896-6-0x0000000000433D4E-mapping.dmp
  • memory/896-8-0x00000000020D0000-0x00000000020D1000-memory.dmp
    Filesize

    4KB

  • memory/896-10-0x00000000020D1000-0x00000000020D2000-memory.dmp
    Filesize

    4KB

  • memory/1876-9-0x0000000000000000-mapping.dmp