Malicious PDF — malware analysis report

Static analysis result for SHA-256 06e61dbf1547d2bd…

MALICIOUS

PDF

38.8 KB Created: 2021-06-07 03:39:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: be9564f54d49b24aa5737586999fc73d SHA-1: 5d1f73273cbae0142fedf0b7354f2ea8f104ba03 SHA-256: 06e61dbf1547d2bd4876ea18908344b418013f4d467998fbdc09942c0e487895
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link and text encouraging the user to click for a 'free generator / game hack'. This link, https://netcdn.tw/app/431946152/click-here-to-get-free-robux-game-hack, is flagged as malicious redirector infrastructure. The document's primary purpose appears to be social engineering users into visiting this malicious URL, likely as a first step in a phishing or malware distribution chain.

Machine Learning

  • Nyx PDF Classifier clean score 0.0331

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.tw/app/431946152/click-here-to-get-free-robux-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
stream_004_off00003bba.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3BBA 25048 bytes
SHA-256: 7328ede1adbf11a629822bd09d2ed297f8018e413c739292b7697fd788198e12
font_01_sfnt_off000075c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75C2 18480 bytes
SHA-256: c57ad1690434184de1eb37ea7cd6cb3a9eb03be661a62db910b348a818f4a114

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