Resubmissions

07/02/2026, 08:09

260207-j2gywahy3c3

05/09/2025, 03:39

250905-d7llcsvvg13

22/07/2025, 13:54

250722-q7jszscp3v10

22/07/2025, 13:49

250722-q41x4awwdv3

01/11/2024, 12:33

241101-pradyaypdv10

27/10/2024, 23:08

241027-24hmasskhj10

20/10/2024, 16:28

241020-tyzdvsxgqb3

20/10/2024, 16:26

241020-tx2gtszekk3

06/10/2024, 17:53

241006-wgrzka1eme

02/10/2024, 11:53

241002-n2j6fsycqb3

General

  • Target
    230823-139hyshd3w_pw_infected.zip
  • Size 472KB
  • Sample240817-29be6ssfra
  • SHA256 8ef176944e54df85db028979ceb66b2b6e807b1615f4254c273d4b433caec0dd
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      dl2.exe
    • Size 849KB
    • SHA256 342f04c4720590c40d24078d46d9b19d8175565f0af460598171d58f5ffc48f3
    • MD5 SHA1 SHA512 SSDEEP
    • BazarBackdoor

      Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Downloads MZ/PE file

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

    • Event Triggered Execution: Image File Execution Options Injection

    • Possible privilege escalation attempt

    • Tries to connect to .bazar domain

      Attempts to lookup or connect to a .bazar domain, used by BazarBackdoor, Trickbot, and potentially others.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Modifies system executable filetype association

    • Reads user/profile data of web browsers

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

    • System Binary Proxy Execution: wuauclt

      Abuse Wuauclt to proxy execution of malicious code.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks