Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9a4471a8a04a2d6…

MALICIOUS

PDF

34.8 KB Created: 2021-05-22 01:42:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 18cef3bcfc97ca5bdb191dc2e1db24df SHA-1: 9ad9a375cf421d324a2d76d80fa52bf3a4895971 SHA-256: c9a4471a8a04a2d61fc38a9ec54523092c87d8d0fcedc32b7fae82d23e7c3f24
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically advertising a 'game hack generator'. The document body also contains a call-to-action phrase and links to similar scam content. The embedded links are designed to trick users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier clean score 0.1044

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/406889139/how-to-hack-coin-master-game-hack In PDF document text
    • https://istanagloves.com/ckfinder/userfiles/files/how-do-you-get-free-robux-on-roblox_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_off00002de5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2DE5 25520 bytes
SHA-256: a901cad651a86e19dd64f8bc00a3287bea429904e72da21dccb2da04ff049fa2
font_01_sfnt_off00006838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6838 17880 bytes
SHA-256: 811ddb8557bc0f5be85009fa6d5ae0baa2b7fc09c58d91c5790597872cecd122

Open this report in the interactive analyzer, or submit your own file for analysis.