PDF malware analysis — malicious · 368ed5490d198f68

MALICIOUS

PDF

35.1 KB Created: 2021-06-30 16:03:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 166c6e54a719e7f956e30be292036d40 SHA-1: 4dcb0f129a3b469577dd294b3af02dcf0e8723b0 SHA-256: 368ed5490d198f6830772ef0e8ba3689347242fcbf6bf4cf411ab770f1250976

182 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document is designed as a lure, employing game hack and free currency themes to trick users into clicking malicious links. The document impersonates brands like Facebook, directing users to external sites such as http://netcdn.co/app/431946152/phantom-forces-roblox-cheat-codes-game-hack, which likely serves as a redirector to further malicious content or phishing pages. The extensive list of linked PDFs suggests a link farm or SEO manipulation tactic to increase visibility of these lures.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 6

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.
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.
Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH

Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.co/app/431946152/phantom-forces-roblox-cheat-codes-game-hack.
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.co/app/431946152/phantom-forces-roblox-cheat-codes-game-hack PDF link annotation
- http://dndprinting.com/new/public/ckfinder/userfiles/files/free-robux-gift-cards-no-survey_GM431946152.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-2021-no-hacks_GM431946152.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/pokemon-go-free-gps-hack_GM1094591345.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/robux-place-rewards_GM431946152.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/roblox-join-game-hack_GM431946152.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/free-vip-roblox_GM431946152.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/without-pokemon-go-free-account_GM1094591345.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/robux-gratuits-rapidement-cheat-pc_GM431946152.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/how-to-get-followers-on-tiktok-for-free_GM835599320.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
- http://dndprinting.com/new/public/ckfinder/userfiles/files/free-hacks-with-no-virus-for-roblox-aimbot_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_off000030d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30D9	22272 bytes
SHA-256: `554906a2371c5733c5ff4f24b1f6480912341cc631fdd6ba7bfe69a67c3ed95c`
`font_01_sfnt_off000062d3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62D3	19508 bytes
SHA-256: `3ca6a992094b97a1edcf9752d0ac2609446b4a22759933691581812a2ec77c31`

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