PDF malware analysis — malicious · d6a874b7e43b4a89

MALICIOUS

PDF

33.3 KB Created: 2021-07-08 05:56:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: bea06c41e1a2cdf916b6f97ea91188ca SHA-1: 231700ce8dd8fac4706eb3c176a46e3017b0b944 SHA-256: d6a874b7e43b4a89496a4ed13cfd95a8d514844ea2575fbd54d1cc25aecbbabb

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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.tw/app/406889139/coin-master-free-coins-and-spins-game-hack PDF link annotation
- https://www.itc-nekretnine.hr/files/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/how-to-add-badges-to-youre-game-roblox-free_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
- http://itc-nekretnine.hr/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/how-to-bypass-the-roblox-cheat-engine-bypass_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/free-robux-hack-generator-2021_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/free-download-coin-master_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/how-to-get-free-robux-online_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/free-roblox-game-codes_GM431946152.pdfIn PDF document text
- http://itc-nekretnine.hr/files/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
- http://itc-nekretnine.hr/files/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
- http://itc-nekretnine.hr/files/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
- http://itc-nekretnine.hr/files/free-robux-giver-website_GM431946152.pdfIn PDF document text
- https://www.itc-nekretnine.hr/files/easy-points-gg_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_002_off00002d5c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2D5C	22320 bytes
SHA-256: `c4a8c34e741f610ab3e84c52d2c191b7488548367aa02691f4433f4fa46ffe55`
`font_01_sfnt_off00005f09.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F09	18348 bytes
SHA-256: `8f4e14d352258b2a04c4750a5c5e6ee18e44525ef82eed3820f54d352c64eef8`

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