Malicious PDF — malware analysis report

Static analysis result for SHA-256 6167287dcc77feef…

MALICIOUS

PDF

43.9 KB Created: 2021-06-09 15:48:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cb90320cf916496b2607568a642379d8 SHA-1: 29c15f8df24c80292a83b197823bb6269d7e3fb2 SHA-256: 6167287dcc77feef82269a9a7eab87e4d8beb46755757b1c037444eabbec72a1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be a free game hack generator. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lead the user to a malicious website, likely for credential harvesting or further malware delivery.

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/roblox-police-free-game-hack In PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-rainbow-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/code-cheat-sur-roblox-deathrun_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-robux-no-download-or-verification_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/robux-hack-pastebin-2021_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/roblox-cheat-engine-no-viruses_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/how-do-you-hack-admin-on-roblox_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/get-free-robux-legally_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/roblox-ip-tracker-hack_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/denis-free-robux-obby-omg_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/how-to-get-20210-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-free-android_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/roblox-free-generator-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-robux-guide_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005193.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5193 24340 bytes
SHA-256: d2ec509f9c718941f676b1ce1b852607509d4273571fa66d13ca15f17eda0b1d
font_01_sfnt_off0000894d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x894D 18220 bytes
SHA-256: 6e2ca07947c9f42f0162a630503ca547e41848c4faeee5b6226ba8ae429dbf7a

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