PDF malware analysis — malicious · cccf90683338b7cd

MALICIOUS

PDF

35.4 KB Created: 2021-07-01 07:07:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: 605c61147411352442c59e86780a76cb SHA-1: 8fa94e833eaba0ebb16c14c3ca5cf4cce713d069 SHA-256: cccf90683338b7cdbfb051ab936dc7fa3e3d9e92295909a8eed689638e3df361

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links to external sites, many of which are part of a link farm designed to lure users with promises of game hacks and free in-game currency. The primary URL, http://netcdn.co/app/431946152/does-roblox-track-the-ip-of-the-hacker-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the document's structure and embedded URLs strongly suggest a phishing or scam attempt, likely intended to lead users to malicious content or potentially download further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
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.
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/does-roblox-track-the-ip-of-the-hacker-game-hack In PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/coin-master-free-spins-link-may-2021_GM406889139.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/how-to-get-free-robux-easy-without-human-verification_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/how-to-hack-pepoles-roblox-account_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/roblox-dbz-super-saiyan-war-hack_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/how-to-get-free-robux-on-places-roblox_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/coin-master-spin-hack-pc_GM406889139.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/roblox-exploit-download_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/xbox-roblox-free-items_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/free-robux-tix_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/roblox-treasure-quest-cheat_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/descargar-roblox-hack-adopt-me-para-pc_GM431946152.pdfIn PDF document text
- https://hunting.beta.privatewaterfishing.com/userFiles/files/minecraft-beta-free_GM479516143.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_off000032de.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32DE	22652 bytes
SHA-256: `5d0e058e67c662c83cba81d18047f78fc96869f93c8f7e963d34193b81ef9bde`
`font_01_sfnt_off00006531.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6531	19164 bytes
SHA-256: `e73e1f1c807bcb0899a0de4f4e61bfcac0e5e22b31150ff2f3cd449d8afb02db`

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