Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e5a0a4669156fd6…

MALICIOUS

PDF

36.6 KB Created: 2021-05-22 04:46:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 057ead6dab7c0d3be10d0bcb6c2cdcff SHA-1: 83891ed07c50f9c37d3bd4b1c2f6a6dcb97009bd SHA-256: 8e5a0a4669156fd6f81999edf5c9a6d9482fc5545b15b12b6c420b45a64b74f0
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF document was flagged as malicious by an ML classifier. It uses a ClickFix paste-and-run lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/479516143/how-to-host-a-minecraft-server-for-free-game-hack PDF link annotation
    • https://www.solucionesdigit.com/images/coin-master-game-hack-kaise-kare_GM406889139.pdfIn PDF document text
    • https://www.solucionesdigit.com/images/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • https://www.solucionesdigit.com/images/coin-master-free-spins-link-2021-no-verification_GM406889139.pdfIn PDF document text
    • https://www.solucionesdigit.com/images/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • https://www.solucionesdigit.com/images/how-to-get-java-minecraft-free_GM479516143.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000035fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35FA 24860 bytes
SHA-256: bbd9f5b1ba11fe17ad9c0d6b47e09d52b8004ab0e74e8f8b42eb6000cd2de358
font_01_sfnt_off00006ed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED5 17988 bytes
SHA-256: 552c8aaf5f0bf5f0c44469b5bd19d93c548c2f36967da1a6f1157fed71bc8ec1

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