PDF malware analysis — malicious · 32606da61738319b

MALICIOUS

PDF

35.1 KB Created: 2021-06-20 09:31:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: c6b5c6003a5cb26dcf460633b49753ee SHA-1: 39c0a331f1fb41116707251a85a09d859ddabb63 SHA-256: 32606da61738319b9a36e6230b853cba25e772788f4dffc780e2d1170a4696bb

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and generators to entice users into clicking a link. The primary link, http://netcdn.co/app/431946152/how-to-speed-up-roblox-with-hacks-game-hack, is identified as malicious redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a workflow designed to lead the user to potentially malicious content, likely for further exploitation or malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-speed-up-roblox-with-hacks-game-hack In PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-tiktok-app_GM835599320.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/hack-client_GM479516143.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/coin-master-2021-free-spins-link_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-vip-servers-roblox-strucid_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/coin-master-shield-hack_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/robux-free-android_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/tampermonkey-robux-hack-that-works_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/optifine-pe_GM479516143.pdfIn PDF document text
- http://www.pustakaekspresi.com/new/public/ckfinder/userfiles/files/free-robux-codes-generator-no-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
`font_00_sfnt_off00002fdd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FDD	22412 bytes
SHA-256: `ba3eef27555cad8bc2ec7838d7f5961bb06e3d82984761cbf062198dbb371831`
`font_01_sfnt_off000061d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61D9	19756 bytes
SHA-256: `976132413fc58c62569fc5e91af9f2dbd00a18ecfad58611de9dccce60dab2b0`

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