Malicious PDF — malware analysis report

Static analysis result for SHA-256 afb9427ca7bb1ed2…

MALICIOUS

PDF

37.8 KB Created: 2021-05-24 06:54:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2cb95e80ea19fd8678a08dee966e014a SHA-1: dbb30131991042a7a8593f9075111b228f837efe SHA-256: afb9427ca7bb1ed25d382df35b8446d79155d8a659f7b42f96f94827b3881cce
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links to known malicious redirector infrastructure, specifically pointing to a Minecraft hacked client download. The document body also includes a call-to-action phrase and multiple URLs that likely lead to further malicious content or downloads. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

Heuristics 3

  • 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/minecraft-hacked-client-1.12-2-game-hack In PDF document text
    • http://asiasieja.pl/images/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/roblox-www-com_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/cm-spins_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
stream_002_off000037ee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x37EE 26628 bytes
SHA-256: 4dc8a023d31961a0943ac06f72597094faaeee2006098a7e1f6fab463465d703
font_01_sfnt_off000072ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72ED 18280 bytes
SHA-256: 63e0cf813ec8bc820137db86bcb3617ef7dd45146c6ac783cccfa5d71b9aece7

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