Malicious PDF — malware analysis report

Static analysis result for SHA-256 49b2898e8bd51490…

MALICIOUS

PDF

39.0 KB Created: 2021-05-11 02:31:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 466bbda6b015f9b7fa0d3912c8946898 SHA-1: e0ae9dc11b89fb2ca37c974776476fb94f093961 SHA-256: 49b2898e8bd5149077af0156e4e95eea6961b1a5ec2aaf478101b19cb9f8b8ab
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple heuristics indicating it's a lure for a 'game hack' and links to known malicious redirector infrastructure. The embedded URL 'https://netcdn.xyz/app/406889139/coin-master-free-spins-fb-champion-game-hack' is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristics suggest an attempt to redirect users to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/coin-master-free-spins-fb-champion-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_off000032fd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32FD 25416 bytes
SHA-256: a988dc8fab20989315414296d2569d51932050606c37197a51948479d984d7d7
font_01_sfnt_off00006cae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAE 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00007699.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7699 18472 bytes
SHA-256: fa7a8e9ba2b69ba0dc6be0410b8e36912589817a3711fa80dfb5f1e628eeb65f

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