PDF malware analysis — malicious · 3a0c5d0ce69056eb

MALICIOUS

PDF

48.4 KB Created: 2021-05-30 11:57:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: d26b04f176c92d4be3f899e23e9acf91 SHA-1: 01cf107697af73b3e747cfa4492605257854c03d SHA-256: 3a0c5d0ce69056eb4ecbffe8aeff451299eb6f9a00032d669bbafe0ec327788d

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are part of a link farm designed to attract users with promises of free game items and hacks. The primary redirector URL, https://netcdn.xyz/app/479516143/minecraft-redeem-code-free-game-hack, is flagged as malicious. While no scripts were explicitly extracted, the structure and content strongly suggest a phishing or scam attempt, likely leading to a malicious download or a credential harvesting page.

Machine Learning

Nyx PDF Classifier malicious score 0.8017

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 https://netcdn.xyz/app/479516143/minecraft-redeem-code-free-game-hack In PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-legit_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-realms-free_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/claim-free-robux_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/give-me-free-robux_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- https://freegiftcodes.euIn PDF document text
- https://code.giftcards.comIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000056e4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x56E4	25588 bytes
SHA-256: `d5e51f03c637b24ffb350f662c10fcf5480873357dc22b49262f5688f82952fb`
`font_01_sfnt_off00009118.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9118	2840 bytes
SHA-256: `787e0768241fb57660bcc9c7f726cf687277c463cdf8c586c4782ee9d03c3606`
`font_02_sfnt_off00009ad6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9AD6	18144 bytes
SHA-256: `cc19f71067fb84b21b4f81fd44d646587f5653a8a3073e37b17122851b8ee9dd`

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