Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2bcd5d58aa9d011…

MALICIOUS

PDF

35.3 KB Created: 2021-05-22 06:40:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4abff4f41182ddfc2c2351bf97b0076c SHA-1: a09efc31b5b9926332d1c1d3e4943a16b4c139df SHA-256: e2bcd5d58aa9d0113ca18bbbe502e2431761af9a84828033e242c076fe189709
160 Risk Score

Malware Insights

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

The PDF contains multiple links that redirect to a 'game hack' generator, indicating a lure for users to download or access malicious content. The ML classifier also flagged this PDF as malicious. The presence of these links and the heuristic firings strongly suggest a phishing or social engineering attack aimed at tricking users into executing further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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-spins-link-2021-game-hack In PDF document text
    • http://suryaartajaya.co.id/images/spin-coin_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://suryaartajaya.co.id/images/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.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_002_off00003306.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3306 23492 bytes
SHA-256: fa1f028ae9f1468ccc4e370c9aed1b2f99d100981ea68e38c9e289a559d6e53e
font_01_sfnt_off00006810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6810 18456 bytes
SHA-256: 405c435adaafa0da304b7a4986d8f56c56dc87ed278d5cff2ac0c57977d8d7e3

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