Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2fb5eaf46d6159d…

MALICIOUS

PDF

40.2 KB Created: 2021-05-21 10:41:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: eab7581ed0a59ebc16f24b10aa8f3417 SHA-1: e5367a0e38c7e9e136d8f5829d30ae8cb77d529b SHA-256: d2fb5eaf46d6159d3bf4dea3cd2680f75eddefd243e1a74af59ac532ea01c0ec
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7877

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 https://netcdn.xyz/app/431946152/free-roblox-outfits-game-hack PDF link annotation
    • https://zabota-kashira.ru/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • https://zabota-kashira.ru/images/coin-master-free-spins-link-download-free_GM406889139.pdfIn PDF document text
    • https://zabota-kashira.ru/images/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://zabota-kashira.ru/images/minecraft-bedrock-download_GM479516143.pdfIn 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
font_00_sfnt_off00003413.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3413 26512 bytes
SHA-256: c5ba28946040e67a92b4f0db7ed93adb827184d0f277ecbc08f057ccd2f8153f
font_01_sfnt_off000070e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E9 3112 bytes
SHA-256: 471f662098e83c5562504503f5e7603b336ca0957605358090bb98e15c7aed80
font_02_sfnt_off00007ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BA3 18312 bytes
SHA-256: 90da43312d6bb992ca5b038b2bc6e2b12c2c9d98bca064d3c60a0cee32c74c59