Malicious PDF — malware analysis report

Static analysis result for SHA-256 77080364cf78b418…

MALICIOUS

PDF

38.7 KB Created: 2021-05-23 17:15:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4f6fce63e385578276c6ba06e19ac028 SHA-1: 85341846abe0661aaf33bb2aa1ba71406f4ef994 SHA-256: 77080364cf78b4181a9006a60900bc01995fac50319f568bfc94ceea510d2bec
82 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'free generator / game hack' which redirects to a malicious URL. The document body and embedded artifacts suggest an attempt to trick users into downloading potentially harmful content. While no scripts were directly extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to exploit sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 4

  • 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.
  • 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/minecraft-windows-10-edition-free-game-hack PDF link annotation
    • https://www.elternrat-bolligen.ch/images/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://www.elternrat-bolligen.ch/images/free-tiktok-likes-generator_GM835599320.pdfIn PDF document text
    • https://www.elternrat-bolligen.ch/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elternrat-bolligen.ch/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • https://www.elternrat-bolligen.ch/images/how-to-get-free-robux-on-roblox-2021_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_002_off00003244.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3244 24584 bytes
SHA-256: 74f87b94e56ab179fe5a9479b63afefdacdfdca8db69a89208d8b717d72c9c11
font_01_sfnt_off00006a32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A32 3056 bytes
SHA-256: dd24a0ab94df4552e459bd06fd01b0fd3f021c1d51d1d64407070e735974a028
font_02_sfnt_off000074a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A5 18524 bytes
SHA-256: 0bf31bed13672a3e0ec3830f17f3a108a804d8b157495bd7936eaddb95c84b8e

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