Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aa8f8f6c7b3ba17…

MALICIOUS

PDF

34.6 KB Created: 2021-06-26 00:54:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3dbd0688070facc1ba281e564097b5aa SHA-1: be63533185c4472e0a85c29e61199140f4c273e5 SHA-256: 6aa8f8f6c7b3ba173d53524dbf3b12d915dd215d581736a9b05cba0157b7e5e1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as game hacks or generators. The primary lure is a link to 'cheat-roblox-prison-brak-game-hack' hosted on netcdn.co, which is identified as a malicious redirector. The document body, though partially corrupted, contains similar URLs, reinforcing the phishing or scam attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/cheat-roblox-prison-brak-game-hack In PDF document text
    • http://library.stembi.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-roblox-card-codes-unused_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-gruops_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/www-resourcly-ml-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-ps3-download-free_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/comment-avoir-des-robus-sur-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-how-to-get-a-shirt-for-free-with-bc_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-panda-mask-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-fan-group-simulator-cheat_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-do-you-be-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-alts-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/supreme-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-get-a-free-redeem-code-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/kazok-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-roblox-noclip-exploit_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAB 22860 bytes
SHA-256: 5924d8a68db590659e71890b44dca15d92117c959754ea4bd754eaf0d92cb7c0
font_01_sfnt_off000061f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F0 19200 bytes
SHA-256: 79bedca5727be504cb662aea998693980b55d0d5c15dd78d83d42e0493e7a9e6

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