Malicious PDF — malware analysis report

Static analysis result for SHA-256 1381e4e5856afc69…

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 07:55:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 46a20a292c1b1e9420214deaa217365c SHA-1: c442952c7c668a535b3e4c054ada41ef04b3e9b8 SHA-256: 1381e4e5856afc69ac1d095a5c42614527b70b1ca9b1e083a45063b9b85c2aef
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/406889139/coin-master-pc-hack-tool-game-hack PDF link annotation
    • https://xiangquan.com.tw/image/data/files/pokemon-go-free-promo-codes-june-2021_GM1094591345.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/game-on-roblox-free-items-on-the-catalog-no-hack_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-get-free-robux-legit-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/lucky-patcher-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/invincible-roblox-hack_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-access-the-studio-of-a-roblox-game-hack_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-hack-999999-robux-2021-pc_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-minecraft-texture-packs-java_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-hacker-come_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-jeruhmi-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.

FilenameKindSourceSize
font_00_sfnt_off00003309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3309 23292 bytes
SHA-256: 3b37f7628d1b470ac62c0cad414ef5db187eb8c8cb09cad5f30368e5bdd7308f
font_01_sfnt_off0000676b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676B 18232 bytes
SHA-256: 48f3d595066ca77e1fd8bc0efef9b839c1fbeea83629d4342e6ba8c1e8d978f9

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