Malicious PDF — malware analysis report

Static analysis result for SHA-256 da5532a12089c571…

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 20:10:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: cb35ee4ff43a60e0e58332b0d3542b6b SHA-1: 5ae93f121cbb83bca6034e5af6590aac8b7f8965 SHA-256: da5532a12089c571822c51237f491b3443ea156fed499ba28eb71d14af9ea366
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/479516143/minecraft-hack-mod-game-hack PDF link annotation
    • https://ibelive.com.tw/image/data/files/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-do-you-exploit-on-roblox-without-cheat-engine_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/roblox-drunk-walk-cheat-engine_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-get-roblox-skins-for-free_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/top-5-free-robux-websites_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/roblox-re_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/static-moonactive-net_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/roblox-hack-ipad-no-human-verification_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-get-free-items-in-roblox-catalog_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/roblox-hack-app_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/how-to-sell-clothes-for-free-on-roblox-place_GM431946152.pdfIn PDF document text
    • https://ibelive.com.tw/image/data/files/free-generator_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.

FilenameKindSourceSize
font_00_sfnt_off0000311f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311F 22420 bytes
SHA-256: da672899704a16005977d8028e31eff825e061e41304e67a98ad3a945d414659
font_01_sfnt_off00006299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6299 18340 bytes
SHA-256: 49e8d41e4645ecbcf6c8cca7b2812b927382294641a04bb93a79b652b6b1cc7e

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