Malicious PDF — malware analysis report

Static analysis result for SHA-256 53d9f0175b99c2e2…

MALICIOUS

PDF

31.9 KB Created: 2021-07-04 05:20:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: d094e81ef91acdacc2e556ebadb9bbb1 SHA-1: 9dbe73fcd9dc3a90f9cff1b78b38f549a4062003 SHA-256: 53d9f0175b99c2e25eb8e5157d9eece6d49b770fcf69204b19c498fae031957c
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 0.9824

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/free-robux-real-game-hack PDF link annotation
    • https://iear.com.tw/image/data/files/how-to-get-anything-on-catalog-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/free-roblox-templates_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/free-robux-pins_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/how-to-get-a-free-pokemon-go-account_GM1094591345.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/roblox-to-get-robux-hack_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/roblox-servers-free_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/roblox-t-shirt-size-free-shipping_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/strucid-aimbot_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/coin-master-daily-bonus-hack_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • https://iear.com.tw/image/data/files/how-to-get-free-shirts-in-roblox-2021-no-inspect_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_off00002964.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2964 21632 bytes
SHA-256: 86a5d12657b22881b396be7c9f1bd094df95f68f23d38416c2aff43af50c858b
font_01_sfnt_off000058af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AF 18788 bytes
SHA-256: 4bc1fb5241f7d1727492069c2276e888dd2add0fc79522b75a602c51baadbe08

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