Malicious PDF — malware analysis report

Static analysis result for SHA-256 27f48088dc9018b6…

MALICIOUS

PDF

43.4 KB Created: 2021-05-22 02:44:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: f69332e4952b8304dc445329a11336be SHA-1: 952e0cf280d98c800e942c56ec45ba8d9df365ea SHA-256: 27f48088dc9018b65ed7b91aa5f66d6a291c32e85e09f0b1c7070b4e48582560
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that are identified as malicious redirectors, specifically leading to a 'free generator / game hack' lure. The document body, though partially corrupted, contains text related to hacking Roblox and a call to action, reinforcing the lure. The primary IOC is the malicious URL used for redirection.

Machine Learning

  • Nyx PDF Classifier clean score 0.0151

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-robux-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_002_off000038a7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x38A7 29452 bytes
SHA-256: eea30e7df9665333295bfa518a6e735eddc195a7c89839b3a7fbb749c964b498
font_01_sfnt_off00007b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B06 3924 bytes
SHA-256: 07c64b3afb33be4a381404fe02e8bf5370913d363dea2d5b20c6b4a1f903e168
font_02_sfnt_off000087d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D5 18588 bytes
SHA-256: 6723e17a0e3ea7e17da9fa5ee91cb22fe0fa4706a6f3d09ae44dda015c08872b

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