PDF malware analysis — malicious · 09de8244f94ede2f

MALICIOUS

PDF

34.5 KB Created: 2021-07-08 01:00:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: ece1e9a2c1ab261b2a239a04281b7d27 SHA-1: 5b663ff5b76ca99def46de41e078e984996b7e38 SHA-256: 09de8244f94ede2fd64e8301948f064bf2d62718bdd1c96ae3eb081ac1df8de6

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a common lure, presenting itself as a 'Roblox Updated Hack' to entice users into clicking a link. The primary link, http://netcdn.tw/app/431946152/roblox-updated-hack-game-hack, likely redirects to a malicious site or initiates a download. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt, aligning with the 'Spearphishing Attachment' technique.

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/431946152/roblox-updated-hack-game-hack PDF link annotation
- http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-free-tickets-copypasta_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/hack-skywars-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-easy-money_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/bloxmate-free-robux_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-codes-2021-october_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/does-cheat-engine-work-on-roblox-vehicle-simulator_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/free-roblox-account-giveaway-may-7th-2021_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/good-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-toffu_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/hack-para-adopt-me-roblox_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/free-robux-pastebin-no-wait-no-subscribe-2021_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/claim-gg-free-robux-by-roblox-events_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-free-item-codes_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/lumber-tycoon-2-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/roblox-hack-robux-promo-code_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/wwwrobloxcom-cheat-codes_GM431946152.pdfIn PDF document text
- http://www.technibuild-group.com/uploaded_files/userfiles/files/how-to-backdoor-hacking-roblox_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_off00002ff4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FF4	22348 bytes
SHA-256: `a450538e0368319715959259ec8a3b4ab695ccca71acb931718ff3a4cfbc0575`
`font_01_sfnt_off0000618e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x618E	19108 bytes
SHA-256: `9955026e234a9f72ae2d6e5a4965471858b2ed47610837791b175729c2bece69`

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