Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d6fa0d0b8b68480…

MALICIOUS

PDF

34.3 KB Created: 2021-06-27 03:21:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 3044677f5c5e14cfd2279f7d85cf7d65 SHA-1: aa3cae900ac23420b71070a2597e22b345fb96b1 SHA-256: 0d6fa0d0b8b684805cbec9afe97c0ec281384b62bd2305a3a72f6f08d396153d
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links, including one to a known malicious redirector infrastructure, masquerading as game cheats and generators. The document body and heuristics indicate a lure to download or visit sites related to 'Roblox' and 'Coin Master' cheats. The presence of multiple external links suggests an attempt to drive traffic to potentially malicious or ad-heavy sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/roblox-lumber-tycoon-cheats-game-hack In PDF document text
    • http://www.salwangurgaon.com/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/foxyhackscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.salwangurgaon.com/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F65 21808 bytes
SHA-256: 977cd3d61335300dd11288d90b7979d351b3a7287e3d16f05d7c75be3b21de59
font_01_sfnt_off00005ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF6 19336 bytes
SHA-256: bcc6dd927f48396fece5b6c9e63e7b76b523f64688e1509dcc7b36ee65051e3b

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