Malicious PDF — malware analysis report

Static analysis result for SHA-256 6909c8682c4cb833…

MALICIOUS

PDF

37.9 KB Created: 2021-05-11 18:40:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6846d2b9767d9d9114e73bc5e0c9ff4f SHA-1: d242118632bb12134f96689e641f1b2ca821c071 SHA-256: 6909c8682c4cb8330a5b3937c68473f9ca203d7dfd983f764793c0c74938c0df
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple heuristics indicating it is a malicious redirector lure, specifically referencing a 'free generator / game hack'. The embedded URL, https://netcdn.xyz/app/406889139/hack-coin-master-online-game-hack, is identified as a known malicious redirector. The document body also contains text and links related to this lure, reinforcing the social engineering aspect.

Machine Learning

  • Nyx PDF Classifier clean score 0.0126

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/hack-coin-master-online-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003169.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3169 24704 bytes
SHA-256: 46690a73162c38304ac5926f232afd74af8ac34602a7310bffd70b21166e28bb
font_01_sfnt_off00006a30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A30 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off0000741b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x741B 17788 bytes
SHA-256: e0e539ae1db8c03a1be4e251235a7cd5530d910df9e974361113a9fde74a9cf4

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