Malicious PDF — malware analysis report

Static analysis result for SHA-256 5de1400ddcb8471a…

MALICIOUS

PDF

34.2 KB Created: 2021-07-19 04:15:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 08a330c63ac45fa9eacfc042266b9fe2 SHA-1: 6988688eec17c9b0bc8744f5ed59c77d267fe4b7 SHA-256: 5de1400ddcb8471ac48ce4425271e49cb1a63d765430ab607cfab7f960d7b8ab
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free codes, directing users to a suspicious URL. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect users to a malicious site for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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/479516143/minecraft-realms-free-codes-game-hack PDF link annotation
    • https://www.iadh.bi/images/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://www.iadh.bi/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.iadh.bi/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.iadh.bi/images/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • https://www.iadh.bi/images/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • https://www.iadh.bi/images/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • https://www.iadh.bi/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.iadh.bi/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.iadh.bi/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • https://www.iadh.bi/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF5 23176 bytes
SHA-256: eee2d62a3292acfb824f3532574f1a54ecd287035728acfdf4ba20aff3f576e5
font_01_sfnt_off00006442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6442 18216 bytes
SHA-256: 30a8f83054e231b1bb485b1ca025b33fda8ee43bcea67b958af1de796f39c45f

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