Malicious PDF — malware analysis report

Static analysis result for SHA-256 c18ba091274bdaa4…

MALICIOUS

PDF

39.6 KB Created: 2021-05-22 15:38:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 01cd9789ae723f425b950dadaf8bede2 SHA-1: e870ec6f2290261300e161c54ef8d7f46a75b6d8 SHA-256: c18ba091274bdaa4e2307b0dfcb09c88b3240b42008527d6332bd1c3e299bb6a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors disguised as game hack generators, specifically mentioning 'Minecraft' and 'Robux'. The heuristic firings confirm these links lead to malicious infrastructure and a game hack lure. The document body also contains a prominent call to action to access a 'Minecraft Generator', reinforcing the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/479516143/can-i-get-minecraft-for-free-game-hack In PDF document text
    • http://www.pleiadisrl.it/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.pleiadisrl.it/images/robux-hack-generator_GM431946152.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_off00003398.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3398 27644 bytes
SHA-256: d7dd872c866f4f065e16a9746ddb931d31b57256c2fdaf240329b576f98ceb54
font_01_sfnt_off0000703d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x703D 3156 bytes
SHA-256: 1366baf4e1a6bde8b0a7b46630f8eb2365cb25cc1140d9806a64449bd657b39f
font_02_sfnt_off00007b13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B13 17712 bytes
SHA-256: e4c5326dba6bbe04ecfe42fb3576534f1bedf9d9a77461a4c126bff948161748

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