Malicious PDF — malware analysis report

Static analysis result for SHA-256 607bb632b1cce180…

MALICIOUS

PDF

37.3 KB Created: 2021-05-17 10:32:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ad8800f255e084d4b9920b20bb7017b8 SHA-1: 65e5f665a0dd480147eb98c5c29acad5330b2b78 SHA-256: 607bb632b1cce1801e6cd196bc7740254d31e4be7342800226517857c183cd33
130 Risk Score

Malware Insights

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

The PDF document contains multiple heuristics indicating it is a malicious redirector lure, specifically targeting users interested in game hacks. The primary URL leads to a known malicious redirector infrastructure. The document body, though partially garbled, contains text related to hacking Roblox and a call to action, reinforcing the lure. The presence of embedded URLs and the nature of the heuristics suggest an attempt to exploit user interest to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/431946152/how-to-hack-roblox-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
font_00_sfnt_off00003455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3455 25296 bytes
SHA-256: 87ce67193706ae1579c852d64262f83091fbe397482bb7e0505b0103f5936cb9
font_01_sfnt_off00006f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F0C 18756 bytes
SHA-256: a768fd9037f2962d7d468f6b0310abba3890de72b41426d235b5de2790bab1ac

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