Malicious PDF — malware analysis report

Static analysis result for SHA-256 e98a0c7a74aa6e62…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 04:52:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ae36a268560365244b547091e82e1e52 SHA-1: 923f362d2a5c912abb77b7f2fde720d25df44f80 SHA-256: e98a0c7a74aa6e6233593c03c98e442dbf7c2fc60b484a55ba313a856854644f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including a critical one to a known malicious redirector at http://netcdn.tw/app/431946152/free-account-roblox-with-robux-game-hack. The document body and heuristics indicate a lure for game-related cheats or currency, suggesting a phishing or scam attempt. No scripts were extracted, but the presence of embedded URLs and the redirector strongly indicate a malicious intent to lead the user to a compromised or malicious site.

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/free-account-roblox-with-robux-game-hack In PDF document text
    • https://www.ma-plast.hr/files/vpn-for-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/what-to-do-if-your-account-gets-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/red-boy-hack-roblox-descargar_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/oprewards-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/robux-online_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/hack-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-hacker-june-28_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/robux-2021_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/tiktok-free-100-likes_GM835599320.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-robux-hack-deutsch_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-star-codes-roblox_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_off00002e4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E4B 22536 bytes
SHA-256: 2fbc2ec769fde190e1d947d3fe782811fdad216e89bbde683ff095c9a5f04003
font_01_sfnt_off000060c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C5 19376 bytes
SHA-256: aca93b4e3f604d5c7fb305f64f27e26b52b7bc87275afcbcda3d4758617aefe4

Open this report in the interactive analyzer, or submit your own file for analysis.