Malicious PDF — malware analysis report

Static analysis result for SHA-256 573ed900f2ad7fae…

MALICIOUS

PDF

42.3 KB Created: 2021-05-19 09:07:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b9dc33bcd525664302d376efa1d29a95 SHA-1: 229b7fc893c92cfe03eb850b1898688d700d3d70 SHA-256: 573ed900f2ad7fae9d42be920e0285576ba607693c5d4911ac0a8b3c6661e4a2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to entice users. It contains multiple links pointing to known malicious redirector infrastructure, specifically 'netcdn.xyz', which likely serves as a gateway to further malicious content or downloads. The document body and embedded links suggest a phishing or scam attempt related to popular online games and services.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/835599320/tiktok-free-2021-likes-game-hack In PDF document text
    • http://dygmotors.com.py/images/coin-master-free-snacks-link_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-generator-hack_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-hacks-for-iphone_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-coin-spin_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-hacks-and-cheats_GM406889139.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://dygmotors.com.py/images/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://dygmotors.com.py/images/coin-master-free-cards-link-2021_GM406889139.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
stream_003_off000044fd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44FD 28452 bytes
SHA-256: da66d2502548aae65138e07e31333ed3e0000c6fa1c11019285a55c7f07096e2
font_01_sfnt_off00008448.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8448 17860 bytes
SHA-256: 744673af4c5c765b02523f030067a1b089ff7fa71309f3c1fb8e6b4a4030ac18