Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f415a62b4f74ac3…

MALICIOUS

PDF

33.2 KB Created: 2021-07-19 19:52:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 52ad563b4ac63e2c4f24b6af07107290 SHA-1: 5f36d1958b4dd4a1c933bc880b469bf0a7ff30b7 SHA-256: 4f415a62b4f74ac37e00741448c1d78715ca8f60f3213d7ff8b2567977d6dcb7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and other PDFs, masquerading as generators for popular games like Minecraft and Roblox. The primary redirector URL is http://netcdn.tw/app/479516143/minecraft-tiktok-hacks-game-hack, which likely serves as a gateway to further malicious content. The document body also contains a call to action to 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/479516143/minecraft-tiktok-hacks-game-hack In PDF document text
    • https://bagliomangiapane.com/images/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • https://bagliomangiapane.com/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • https://bagliomangiapane.com/images/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • http://bagliomangiapane.com/images/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://bagliomangiapane.com/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://bagliomangiapane.com/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://bagliomangiapane.com/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • https://bagliomangiapane.com/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://bagliomangiapane.com/images/robux-free-c_GM431946152.pdfIn PDF document text
    • https://bagliomangiapane.com/images/coin-master-fan-page-free-spins_GM406889139.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_off00002d1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1E 23152 bytes
SHA-256: cab9896f04c25f3c5495987e409257f8c085a08b71a75573ef00e65e881c3677
font_01_sfnt_off00006153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6153 17880 bytes
SHA-256: d5bc1f00134bcbca17edb073a38cf34a4b8369625bcb3a8e6d2c090e6dde0fec