Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d4b82df18d8466…

MALICIOUS

PDF

37.1 KB Created: 2021-05-22 04:03:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: fdb5448d9ed032c7390309706c28478f SHA-1: c4dbba91ed5b047208ea31f297910ff112607c05 SHA-256: 06d4b82df18d846635eb6d4c1cf86c8e08d4ad6f1e49e7070e922227cac3df23
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector leading to a 'free generator' lure. The document body explicitly mentions 'Earn Free Robux On Roblox' and provides a call to action to access a 'Roblox Generator'. This indicates a phishing or scam attempt designed to trick users into visiting malicious sites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/431946152/earn-free-robux-on-roblox-game-hack In PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.min3madiun.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast-and-easy_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003298.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3298 26324 bytes
SHA-256: 14d5da06165ad002bec43116cae4420ecb7d2b8db3f784ba79d6d40624a216f1
font_01_sfnt_off00006f8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F8F 18316 bytes
SHA-256: 9c0981cacc72906997edc94ef8681ff328413c242d975763da1b98cbde4aeec5

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