Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6a7b685f1fcdcda…

MALICIOUS

PDF

38.3 KB Created: 2021-05-11 03:34:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7e451c78a5b343b698d42a61434df588 SHA-1: 28f0b17fe904ed950608d15f3ec2473fc92eb653 SHA-256: e6a7b685f1fcdcdad60a9178057229f9307302f6ff249304c5a4ced2064474da
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links that lead to known malicious redirector infrastructure, disguised as generators for popular games. The document body explicitly mentions 'Links To Get Free Spins On Coin Master' and includes a call to action to access a generator, indicating a phishing or scam attempt. The presence of multiple malicious redirector links strongly suggests a malicious intent to lead users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier clean score 0.0220

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/links-to-get-free-spins-on-coin-master-game-hack In PDF document text
    • https://chiemsee-simssee-h-boot.de/images/roblox-cheat-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000319e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x319E 25212 bytes
SHA-256: 4aa31e560012ae19b5c684363e95367fd31e7dcac293691bc8e45f09d334d64e
font_01_sfnt_off00006aed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AED 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off000074d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74D7 18056 bytes
SHA-256: 09d5214532ffde87c42515cbc4f454f72aa6a3fcd547f3e5323fe8ee16367066

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