Malicious PDF — malware analysis report

Static analysis result for SHA-256 df6a7ff93eaf9fbe…

MALICIOUS

PDF

44.6 KB Created: 2021-05-12 03:33:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 22383a2dccdce6c3e909da201f788842 SHA-1: 5abecffb141a0f3080174b08c8fbcfa07116be5f SHA-256: df6a7ff93eaf9fbedfae59466c26b7cd19add3b5440404c827334bda60fb0993
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'free currency' lures. The presence of a visual download button further supports a phishing or scam attempt. While no scripts were directly extracted, the PDF structure and embedded URLs strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/roblox-robux-hack-game-hack In PDF document text
    • http://educhina.mn/editor/files/free-spins-and-coins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-games-hack_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/best-free-spins-link-coin-master_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/get-robux-today_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-do-you-get-free-roblox_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004804.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4804 25416 bytes
SHA-256: 9d5f420910e18d1ebf5d314c53e321e6311a470519b11aeebe4312c099d4f33a
font_01_sfnt_off000081f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81F2 2844 bytes
SHA-256: baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a
font_02_sfnt_off00008bb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BB3 18320 bytes
SHA-256: fa424f86a9ddd472d540fc30f07119be4b576a9306b5f7bb82c207f2bb92a2b4

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