Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7b141f4e3a92d1…

MALICIOUS

PDF

27.4 KB Created: 2021-06-19 16:10:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 29ee30078a402136c123b898d4f6077f SHA-1: 0f46fd64675d473e5f11c6934426b4bb70a69cf2 SHA-256: ea7b141f4e3a92d1e1c81eae0cd96f6242f730054f752692d37a03d0693797af
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'Roblox Cheat Bee Swarm' and a call-to-action to download a generator. It embeds a link that redirects to known malicious infrastructure, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains references to the malicious URL and a download lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0328

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 http://netcdn.co/app/431946152/roblox-cheat-bee-swarm-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_off000016ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16EE 21936 bytes
SHA-256: 022d7981aca4209f43ec1628dd171f6c4133d980f9c5a51c0e4129b377a5bb5e
font_01_sfnt_off000046fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46FA 19180 bytes
SHA-256: db8c6acbc81d530bbee58ea6d68cd18df2aec8c2d8a24167e822f86b51493140

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