Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e51209d74d40ca…

MALICIOUS

PDF

36.4 KB Created: 2021-05-23 03:35:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 944da5e0b631858c7c44d7f4cb3db418 SHA-1: 878a8fc952bae7093ec86a64ca54cc79218527cf SHA-256: 26e51209d74d40cae8fca67e7fb4c6dc966a3f51362856d86c1f55f97783efad
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and generators, specifically mentioning 'free Robux'. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. While no scripts were directly extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/how-to-get-free-robux-on-roblox-game-hack PDF link annotation
    • http://sellitafrica.com/media/storage/editor/files/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/haktuts-coin-master-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-minecraft-hosting_GM479516143.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
stream_002_off00003506.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3506 24304 bytes
SHA-256: 87b7ad8ab7e9e42e71b1149b33ac5a81fdfc79a939eae03ca7cde55f8ed56657
font_01_sfnt_off00006cc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC2 18356 bytes
SHA-256: 07f7f5fe088ebb6a81b9aca0d3b7acb37488304f642f9e675d153fcc87cea6c5

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