PDF malware analysis — malicious · fd2184b6f6a37dcf

MALICIOUS

PDF

42.2 KB Created: 2021-05-14 00:14:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 1c183355f76cd7c43a5fbedcb6dbd05a SHA-1: edb7d6c9e5b582885ae52409d0c7d66d158ca597 SHA-256: fd2184b6f6a37dcf498ac2c081dc847c5b0c3f27141d1baa9e0f202bdcb3b7c3

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically promoting 'free generators' and 'game hacks' to lure victims. The document body and embedded URLs suggest a phishing or scam attempt, likely to lead users to further malicious content or downloads. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/406889139/free-coin-and-spin-for-coin-master-game-hack In PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/roblox-people-girl_GM431946152.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/fb-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/get-free-robux-com_GM431946152.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/free-robux-scam_GM431946152.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/free-minecraft-skins_GM479516143.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/free-download-coin-master_GM406889139.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/roblox-scam_GM431946152.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/free-robux-without-verify_GM431946152.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/free-robux-no-email_GM431946152.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
- https://www.themerchantshouse.co.uk/uploads/files/files/promo-codes-to-get-free-robux_GM431946152.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_003_off00004b65.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B65	24476 bytes
SHA-256: `20fcad4852d8cfcf27b733e5069d66318720fb7d548b4b3326f32029754efb15`
`font_01_sfnt_off00008349.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8349	18060 bytes
SHA-256: `42d2e7759bfcfecd447a46542d8809f4e944f7c9df23d0847fbb4c7837fae2b0`

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