Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1a2f1e179bc65fc…

MALICIOUS

PDF

30.7 KB Created: 2021-07-19 06:27:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: addad52325710da0ace9cf7b1003394b SHA-1: c00caaa8ff7f7fa2c02d5b02a1603d30f857492c SHA-256: f1a2f1e179bc65fc2dd6f00b30cad5d523523eed3b35e0dd7f08371fc2943a86
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links that redirect to a lure page advertising a 'Roblox generator' or 'game hack'. This is a common social engineering tactic to trick users into visiting malicious websites. The heuristic firings confirm the presence of malicious redirector links and a lure for free game items. No scripts were extracted, but the document body and heuristics strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0486

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.tw/app/431946152/i-got-hacked-on-roblox-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_off000022ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22AE 22652 bytes
SHA-256: 3f356bce1fd268e79a7448b0580b499b1f96cc8f6e389151a38e749c58fea0e6
font_01_sfnt_off00005537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5537 18644 bytes
SHA-256: f44e9b3fb0d0f15266976d4518c0289fb567cec7e33ee43e4a4ea879cf7855b4

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