PDF malware analysis — malicious · fbe72981d3b9a839

MALICIOUS

PDF

44.3 KB Created: 2021-06-03 16:28:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 9d7997115682fb8f5961d3cc21b93422 SHA-1: 1483164ccf787bb9f661d283c24bc7827ffa7578 SHA-256: fbe72981d3b9a83991e11e699cccd8b4216b500d2eef6722b126298189435dfc

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a free game generator or hack. The primary link redirects to a known malicious domain, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious redirection workflow, likely intended to lead users to further malicious content or phishing pages.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/is-minecraft-free-on-computer-game-hack In PDF document text
- https://www.andrology.co.uk/uploads/files/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-earn-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/roblox-hack-site_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/minecraft-mod-menu_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-win-attack-madness-in-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-hack-coins_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-videos_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/robux-free-com_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-daily-rewards_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.

Filename	Kind	Source	Size
`stream_004_off00005314.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5314	24868 bytes
SHA-256: `c4ca38bd9f1108f701c2988228f3c112eb4905401281d1355df87f86a0714a41`
`font_01_sfnt_off00008ae7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AE7	18284 bytes
SHA-256: `8186214d340ecaefeb8d2e1287a453c09f41e8188bbde515826fde5952553fdc`

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