PDF malware analysis — malicious · 3d7494440bc51c99

MALICIOUS

PDF

42.8 KB Created: 2021-05-17 13:21:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 0664b9a422266e7276ffa663912372b0 SHA-1: 4b6ec3da558019c49c3582f1966440f66c8baffd SHA-256: 3d7494440bc51c999cbde61e3dd02d518aebdefb244af42dc1957334909ffa36

260 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are part of a link farm designed to attract traffic for SEO purposes. The primary link directs users to a "game hack" generator, indicating a lure for potentially malicious content or scams. The presence of a visual download button and password instructions for an archive further suggests a workflow designed to trick users into downloading and decrypting malware. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 6

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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/toolbox-for-minecraft-ios-game-hack In PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/toolbox-premium-apk_GM479516143.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-hack-download_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-robux-videos_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-free-master_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-gold-cards-free-link_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-robux-place_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-coin-master-gifts_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/roblox-free-robux-no-human-verification_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_off00004c92.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C92	24860 bytes
SHA-256: `7cfc5728f4316bebb8a7326c72ca3d0065ae03a1f3cfe86f537071ea5157de05`
`font_01_sfnt_off0000856b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x856B	18152 bytes
SHA-256: `00efac36cff71ff299be5bc46999ebb3fdd16e50bdaeff84e7245ae46705892c`

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