Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff53ba17e1d5fdcd…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 00:36:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 892a0b9c12b9e61f57a2bc3ce7ae33bf SHA-1: 9bfa3929c8aa94702306356b56b6bfaf38f06082 SHA-256: ff53ba17e1d5fdcd4ea64b6a6cdd5568c513a95296a2d5033491cb9de8f60a23
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to 'game hacks' and 'free generators' to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, which is likely designed to serve further malicious content or phishing pages. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector links reinforces this assessment.

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.co/app/431946152/how-to-kill-everything-on-the-map-roblox-hack-game-hack In PDF document text
    • https://xiangquan.com.tw/image/data/files/free-roblox-acc_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/cute-free-hair-on-roblox_GM431946152.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-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/injector-hack-roblox_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-free-printables_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/super-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-hack-tool-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/make-a-free-game-like-roblox_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-free-ninja-animation-pack_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_off000030db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DB 22072 bytes
SHA-256: f89832a04d3fc0779567101935555a79c348a9b9379bf0cb0d0de6112a0eb467
font_01_sfnt_off000061b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B1 19876 bytes
SHA-256: bf43ee776d5f7aa08c73ab5d117d8a335c87ee7749a0e86b729de3d4bba7f813

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