Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2dc4bc8cac2bbf3…

MALICIOUS

PDF

34.4 KB Created: 2021-05-31 01:43:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 585d283646961d94adf8b978682181b0 SHA-1: bfcf9111e76582cdf0afe18f9b7f048381489c8b SHA-256: e2dc4bc8cac2bbf3eb25529b11ef4b2ad2184e8ff966daf9b2c4377746652a97
130 Risk Score

Malware Insights

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

The PDF document contains embedded links that lead to a known malicious redirector. The document body explicitly mentions 'Roblox Script Hack' and 'CLICK HERE TO ACCESS ROBLOX GENERATOR', indicating a lure to a fake generator. The heuristic firings confirm the presence of malicious redirector links and a lure for a game hack, strongly suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

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/roblox-script-hack-game-hack In 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
font_00_sfnt_off00002c47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C47 24884 bytes
SHA-256: 640a58d3218aa71ae0e01579a13e1e813167561908abea50fa65b1947fd356e4
font_01_sfnt_off00006436.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6436 18580 bytes
SHA-256: c1944f3c26fd870ce0e5de863125d21882df0ce96ba9356e52db8af51b5248a2

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