Malicious PDF — malware analysis report

Static analysis result for SHA-256 d46c1ecfe7a53602…

MALICIOUS

PDF

37.0 KB Created: 2021-05-25 08:32:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1820140a3f65104b50276b3b64a47441 SHA-1: 17608d8cb6e2d7c2b84298d7562b052bd82ece42 SHA-256: d46c1ecfe7a536021b7d093fe18e55571cbb43db7bd15504233d31612bd178b7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links and a call-to-action phrase related to 'free Robux' and game hacks, indicating a social engineering lure. The primary link points to a suspicious domain that likely hosts a malicious payload or redirects to a phishing site. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to trick the user into navigating to a harmful resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/431946152/free-robux-no-verification-2021-game-hack PDF link annotation
    • https://eurekaaccounting.co.za/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://eurekaaccounting.co.za/images/roblox-e-free_GM431946152.pdfIn PDF document text
    • https://eurekaaccounting.co.za/images/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • https://eurekaaccounting.co.za/images/free-roblox-acc_GM431946152.pdfIn PDF document text
    • https://eurekaaccounting.co.za/images/free-robux-not-a-scam_GM431946152.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_off00003285.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3285 25688 bytes
SHA-256: 73914940ca6c7765298ce67baf9f9fc41280006d7d5a6a29d49630e2c8ffc72e
font_01_sfnt_off00006d36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D36 19004 bytes
SHA-256: d712ae43aec968503a6d4b8ef93db90b07e4d7d9799b66e9787cf09d99ae12e2

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