Malicious PDF — malware analysis report

Static analysis result for SHA-256 56d0f588ac2e8c9b…

MALICIOUS

PDF

37.7 KB Created: 2021-05-21 05:12:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 708c2172fc57360e8b0c41c034109a6e SHA-1: aeb44624ed8abb95b42f9aba6fd7d0660311455b SHA-256: 56d0f588ac2e8c9b38c4b791fb901f51539a233c8f5bfb9e36f2f28b96c85f7e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising free game currency generators. The document body and embedded links suggest a lure for users seeking in-game advantages. The presence of redirector links and the ML classifier's high confidence score indicate a malicious intent to lead users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/free-robux-no-verification-2021-android-game-hack In PDF document text
    • https://bancroftandsons.com/images/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-robux-legit_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/robux-download_GM431946152.pdfIn PDF document text
    • https://bancroftandsons.com/images/free-coin-master-coins-2021_GM406889139.pdfIn PDF document text
    • https://bancroftandsons.com/images/coin-master-hacksco_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
stream_002_off000033d7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33D7 25712 bytes
SHA-256: 8f5980ed1ac41bad4c687306bc478114c050758d83f22e5f1fca5dc6f3295e9a
font_01_sfnt_off00006f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F27 19176 bytes
SHA-256: 2db8195158682863467aa5049c27493158ce29af4e73d213a7d216c5b0c72741

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