Malicious PDF — malware analysis report

Static analysis result for SHA-256 e187fdeba4a000c8…

MALICIOUS

PDF

41.3 KB Created: 2021-05-15 07:33:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9ad2b7c89db1cc8f07ccd48f5a76664f SHA-1: ad3039f621d04811c71af5a7994d436d675901e4 SHA-256: e187fdeba4a000c8a46b1926959c74a836dde6de4904918554627516c8e57589
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as generators for popular games. The primary lure is 'Coin Master Free Coins Link', directing users to 'https://netcdn.xyz/app/406889139/coin-master-free-coins-link-game-hack'. The document's structure and embedded links strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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/406889139/coin-master-free-coins-link-game-hack In PDF document text
    • http://beagles-of-harmony.de/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/freerubux_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/coin-master_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/coin-master-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/robux-codes_GM431946152.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://beagles-of-harmony.de/images/coin-master-hack-apk-download_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_off0000481c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x481C 24708 bytes
SHA-256: f33cdc6de52e1f388f795c4c1cb381255644ba9303f9b48e8104d04afb2181aa
font_01_sfnt_off0000803f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x803F 17880 bytes
SHA-256: 5ce88b684446e36e89a0643934549b22fce1d776877bbe9d9a558feafde7429d