PDF malware analysis — malicious · 73bb2dc7f77100b6

MALICIOUS

PDF

34.7 KB Created: 2021-06-29 11:22:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27

MD5: ef35f3c5372d9b225504caac83b4d591 SHA-1: d40334943ba8ca51d7b2280b06640e57ff675094 SHA-256: 73bb2dc7f77100b6d45d4103d527859d1ff8ff59790ebc06f576cfd69a531fe5

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links disguised as game hacks and generators, specifically targeting popular games like Roblox. The primary link, http://netcdn.co/app/431946152/how-to-hack-roblox-players-accounts-game-hack, is flagged as a malicious redirector. The document's structure and content strongly suggest a phishing or malware distribution attempt, likely using a spearphishing attachment vector. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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-hack-roblox-players-accounts-game-hack In PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/get-free-robux_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/minecraft-pc-free_GM479516143.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/1b-robux-hack_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/coin-master-download-hack_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/roblox-jailbreak-speed-hack-download_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/robux-maker-hack_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-roblox-generator_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/roblox-free-robux-hack-no-password_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/roblox-demo-free-download_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/legit-free-robux-sites_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/coin-master-coins_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/client-hack-roblox_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-coins-coin-master_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
`font_00_sfnt_off000030ba.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30BA	22004 bytes
SHA-256: `36502cd2f7f7ca9cdeea04dca6f28322083390f3309ff18b611af9af09aa2b7e`
`font_01_sfnt_off00006176.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6176	19396 bytes
SHA-256: `95deff91bf4426595f827d0b0379c38711c29acb0c4d9d1c89195557f54883e2`

Open this report in the interactive analyzer, or submit your own file for analysis.