Malicious PDF — malware analysis report

Static analysis result for SHA-256 08b09460183287f9…

MALICIOUS

PDF

44.4 KB Created: 2021-06-07 15:10:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f7af51bd082117a8ba9d854671455d9d SHA-1: 8cede4572d0b18156162b0b768fdddb1e3efc584 SHA-256: 08b09460183287f9695d4c4872e247a799e0846290ce01f8f9889fd0b5831a69
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body, though partially corrupted, contains similar URLs and text related to game hacks. The primary malicious action observed is the redirection to a URL designed to trick users into downloading further malware or engaging in fraudulent activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/free-roblox-accountrs-game-hack In PDF document text
    • https://www.similar.com.tw/upload/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/robux-get-com_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-100-robux_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/money-in-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/minecraft-java-edition-free-download_GM479516143.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_004_off00004f58.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F58 25744 bytes
SHA-256: cca358b83f2adfc6aaa7ce7f8bd2a15a163e4060e96b6600119d1a4dca7a00bf
font_01_sfnt_off00008b4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B4A 18192 bytes
SHA-256: 9af8fc399b7603ded65a47756b8d28ab9f279dafa7c0fe2cd6f7ecbc085cbebe

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