Malicious PDF — malware analysis report

Static analysis result for SHA-256 df1f603038a6f8c0…

MALICIOUS

PDF

29.3 KB Created: 2021-07-18 22:30:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: da1d108f1696f24cd188e169660c9062 SHA-1: 300b612efe97ea9985eb0c1070350c07f9e32e90 SHA-256: df1f603038a6f8c006eb815e9eb59aa398c08e78a37c64126260d5e820be3316
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically advertising a 'free Robux generator' or 'game hack'. The document body includes phrases like 'CLICK HERE TO ACCESS ROBUX GENERATOR', indicating a social engineering lure. The embedded URLs suggest an attempt to redirect the user to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier clean score 0.0794

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/rbxfree-com-free-robux-game-hack In PDF document text
    • http://www.sabbiadoro.net/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000020f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20F5 21716 bytes
SHA-256: e25371395526206d4cfb2129e49357e628cdf741411443945871d2e611d08f11
font_01_sfnt_off00005082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5082 18460 bytes
SHA-256: 96a7f2ecb1645bf28582e424beb12dfc4726f5935c17c98ff40042140a6bccec

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