Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2d080e261d3c256…

MALICIOUS

PDF

49.4 KB Created: 2021-06-03 19:07:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 414e4a502f6cea3b1e61b3fd745a364f SHA-1: 3fa74dee92f353f265a1997e41e1886ebaa81caf SHA-256: d2d080e261d3c256bd26cb7e2410f0d7ea7241089ba6a9fef4e17d990245a0a0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and free rewards. The primary lure is a link to 'coin-master-free-rewards-link-game-hack', which is hosted on netcdn.online. This indicates a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URLs and the nature of the lures strongly suggest a malicious intent to redirect users to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/406889139/coin-master-free-rewards-link-game-hack In PDF document text
    • http://www.flytec.com.py/download/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/how-to-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/pubg-40-uc-buy_GM1330123889.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/coin-master--hack_GM406889139.pdfIn PDF document text
    • http://www.flytec.com.py/download/files/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000515a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x515A 24600 bytes
SHA-256: e4e2e89a98e366b2c2a011e8e24cb7955de7d222408a05e28789e79725b6a63c
font_01_sfnt_off00008a2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2B 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_02_sfnt_off00009eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EB6 18216 bytes
SHA-256: 658cfe6ea68dc33f1c61864f727cf80d605750a91b73f2c3ad1e1c3c3fde56a2

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