Malicious PDF — malware analysis report

Static analysis result for SHA-256 a339e2b7034215ec…

MALICIOUS

PDF

34.5 KB Created: 2021-07-06 05:02:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 61a85c87bb333f6da249ceee2e0af42b SHA-1: 9721fab7fc2ae9ee9a7d0ac7cffdbfede1d9cc1a SHA-256: a339e2b7034215ec300bf8118881d3f24e0b8965c62dc467a20958a953f3c479
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and currency for popular games like Roblox to entice users. It contains multiple embedded links, including a primary malicious redirector at http://netcdn.tw/app/431946152/accessory-hat-ashs-hat-on-roblox-free-game-hack, which likely leads to further malicious content or malware downloads. The document's structure and content strongly suggest a phishing or social engineering attack aimed at tricking users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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.tw/app/431946152/accessory-hat-ashs-hat-on-roblox-free-game-hack In PDF document text
    • http://new-era.com.tw/image/data/files/roblox-free-hoverboard_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/cheat-codes-for-roblox-assassin_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-any-item-free-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-roblox-animations_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/pokemon-go-free-spoofing_GM1094591345.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/pokemon-go-free-download-ios_GM1094591345.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/www-robux_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/are-there-and-free-safe-roblox-exploits-v3rmillion_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-minecraft-generator_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-stuff-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3011 22400 bytes
SHA-256: 4529f88f5f1e1fede9a1bb3c5cd2799e15ef42285f11ac2a7341c32437e52ef7
font_01_sfnt_off0000620a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620A 18916 bytes
SHA-256: dd900f11bb37f5a8bad00966624dc47983c423abf7594fea8f250ba25841a327

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