PDF malware analysis — malicious · 93646ffda8d68f1f

MALICIOUS

PDF

40.7 KB Created: 2021-05-11 05:03:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23

MD5: 57471aa1a5e4c6c61c6949995f6e9dae SHA-1: f1a23210bdd26ca49e6f2b68f2be279c49a126aa SHA-256: 93646ffda8d68f1f1d445130e48c7c3ae3f60cb43cea641853e65814c968adb2

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and generators. The presence of a download button lure further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and embedded links strongly indicate a phishing or scam attempt.

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/moon-static-coin-master-generator-hacks-free-game-hack In PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-spins-link-no-verification-code_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/actual-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/roblox-scam_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-daily-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/robux-giver_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/daily-spin_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/can-lucky-patcher-hack-coin-master_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-daily-free-spins-2021_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_003_off000047b7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x47B7	23892 bytes
SHA-256: `f6657bf8c80f388a5c6a73916cdec751646d69832a08dd8876c9307b9b82e16b`
`font_01_sfnt_off00007dfc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7DFC	17880 bytes
SHA-256: `12faecc5962592d277de3e4fe4bc4692cb4c94937b2745323735b12f582b8c4f`

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