PDF malware analysis — malicious · 08b7d13d379a4ae6

MALICIOUS

PDF

36.0 KB Created: 2021-06-29 22:42:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: 83259663538b2e1a3d5089bf05fa3a5b SHA-1: c667e5a632d9842e4c0be7b6e244df24aa316a80 SHA-256: 08b7d13d379a4ae6e6c96be2d848794ed97d1716308cc6e634c530470e325886

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on them by promising free in-game currency or hacks. The primary link directs to a known malicious redirector infrastructure, and the document also hosts a large number of SEO-optimized links pointing to other potentially malicious PDFs. The document body text explicitly mentions 'free Robux' and 'game hack', reinforcing the lure tactic.

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/how-to-get-free-robux-no-waiting-game-hack In PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021-yt_GM431946152.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/pubg-uc-rate-in-pakistan_GM1330123889.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/wurst-download_GM479516143.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/coin-master-daily-free-rewards_GM406889139.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/how-to-get-free-roblox-items-2021-febuary_GM431946152.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/roblox-hack-tix-and-robux-generator-2021_GM431946152.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/free-roblox-money_GM431946152.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/roblox-login-hack_GM431946152.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/free-roblox-cheat-codes-for-robux_GM431946152.pdfIn PDF document text
- http://www.vvsautomaticdoors.com/uploaded_files/userfiles/files/how-to-hack-roblox-jailbreak-on-mac_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_off00003337.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3337	23100 bytes
SHA-256: `69b9b8624bbddc1ef42423bedd577850bd2e2246e4943205afb84ed16cb19b1e`
`font_01_sfnt_off000066d0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66D0	19304 bytes
SHA-256: `109ed9edbf3ee261c11a9c7acbe24a08e4c916cb0d2a72f041c32c0456caa9ad`

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