Malicious PDF — malware analysis report

Static analysis result for SHA-256 3353df78d214a095…

MALICIOUS

PDF

45.5 KB Created: 2021-05-17 12:45:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d569848b8f30285532d107d5992723f1 SHA-1: 6a4acdf03667e89fdcf6fc2df98991fbacd1f848 SHA-256: 3353df78d214a0956ff2c659b00b4997377b6d37000563d2c05d6cec655bc50e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as 'free generators' or 'game hacks' to lure victims. The document body, though partially garbled, contains references to these lures and the primary malicious URL. The presence of embedded links and the nature of the lures strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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 https://netcdn.xyz/app/479516143/free-minecraft-videos-game-hack In PDF document text
    • http://bi-bordtennis.dk/images/easy-points-gg_GM431946152.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/block-best-robux_GM431946152.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/real-robux-codes_GM431946152.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/picture-roblox_GM431946152.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/coin-master-hack-ios-no-human-verification_GM406889139.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/hack-coin-master-mod-apk_GM406889139.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/hack-robux_GM431946152.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/cool-free-roblox-outfits_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bc9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BC9 25664 bytes
SHA-256: 441b59cd6e7afad239205d01dc1daca30f6602a4102187f9d843d67c25e07f15
font_01_sfnt_off000085f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F4 3128 bytes
SHA-256: 801f6fa60decd1add2f223f91580103c35e150c924465f86a7a572b3e00674f9
font_02_sfnt_off00009034.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9034 18020 bytes
SHA-256: 6cfe610ecbcacf9195189a6c1e3d6544445db69855dd5d4e392c322ec4193c6d

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