Malicious PDF — malware analysis report

Static analysis result for SHA-256 274f52bb95eb7904…

MALICIOUS

PDF

35.4 KB Created: 2021-07-05 03:27:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: fa1248b7de1940c3647090da7af067c2 SHA-1: 53f6e664c1f1347560591581171b15f9de57a605 SHA-256: 274f52bb95eb7904292bc9fef2cc02cc89b071a4d152778cea22b50e89003af6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirectors and external websites, masquerading as game hacks and generators. The heuristic firings indicate that these links lead to known malicious infrastructure and are designed as a lure for users to download potentially unwanted or malicious software. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a social engineering tactic to trick users into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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.tw/app/406889139/coin-master-hack-download-2021-game-hack In PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/is-it-possible-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-hack-your-friend-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/18-hacks-de-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-working-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-hack-in-roblox-assassin-on-ipad_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-needs-password_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-use-the-cheat-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/brother-cheating-on-his-roblox-girlfriend_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-rocitizens-cheats-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3128 23216 bytes
SHA-256: 6b15294303d2bd491d22affc1bcdfd46e8925d02a7c0f3acbf602ce0b595472f
font_01_sfnt_off00006563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6563 18988 bytes
SHA-256: 24c61ec5dda380d335f70cf248a1dbd8858f35ecf964e4cb835eae0821bc023c

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