Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf706875df8f2895…

MALICIOUS

PDF

39.7 KB Created: 2021-05-25 07:00:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 0999745b0edab975181730115851e587 SHA-1: 7c7ca964f00997e652bad107a3100f8e13af9941 SHA-256: bf706875df8f28950a1a1616f70d7390a8dc2e3c4c3d73a3f0bdfe0a00bde997
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a lure related to free game items and accounts, specifically mentioning Minecraft and Roblox. It contains a prominent "CLICK HERE TO ACCESS MINECRAFT GENERATOR" button and embeds multiple URLs, including a critical link to a known malicious redirector at https://netcdn.xyz/app/479516143/how-to-get-a-free-minecraft-account-game-hack. This redirector likely serves to deliver a second-stage payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/how-to-get-a-free-minecraft-account-game-hack In PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • http://e-library.smkn1jombang.sch.id/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://youtuIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000358f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x358F 25892 bytes
SHA-256: 26aee0b19aaf819103ed178d7d9f9255255dd148c3df84782dfd002fde9779a8
font_01_sfnt_off00007096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7096 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off00007a80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A80 18016 bytes
SHA-256: 5a2a7e753a917a0c0776144ed208a5331958d262d8364954408ce80ee198d92a

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