Malicious PDF — malware analysis report

Static analysis result for SHA-256 58ace402935dd367…

MALICIOUS

PDF

32.8 KB Created: 2021-07-20 12:40:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a97a8f44555ac986c12dc0229b9d604f SHA-1: 8b4c4a2f690ee63109e31a3e98e93bcb62376bfd SHA-256: 58ace402935dd367a82835565e90c4e168def4004771c8b0462bdeb6696e6d6c
82 Risk Score

Malware Insights

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

The PDF document contains a lure for "free TikTok Likes" and "free Robux" generators, directing users to a suspicious URL. The embedded links likely lead to a malicious website designed to exploit users or deliver a second-stage payload. The ML classifier strongly indicated maliciousness, and the heuristics confirm the lure and external URI usage.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/835599320/free-tiktok-likes-trial-game-hack PDF link annotation
    • https://unionmusicaldebenidorm.com/images/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/free-robux-come_GM431946152.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://unionmusicaldebenidorm.com/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn 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_off00002eb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EB7 22132 bytes
SHA-256: fe6416fc76fc0df3a7397f2fcdb569da01cdb4cf1294af74215bd305251bb89a
font_01_sfnt_off00005fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCD 17756 bytes
SHA-256: 9d76c6faa2ac5c2cb25d5c28859cdf9fe3589154660ff5d1bcb1376c3aae0ade

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