Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f38d4b08e16c3b2…

MALICIOUS

PDF

43.5 KB Created: 2021-06-03 11:58:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f07190bc79437da2b51ec9d9fb900e10 SHA-1: 02cb49b1430cf33daeb86032f29ebfab4333b089 SHA-256: 6f38d4b08e16c3b2997c12d2e8d2f4bf8db93f969f28e2d0fbd450951b6e6f80
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, disguised as game hacks and generators. The ML classifier also flagged this PDF as malicious. The primary lure appears to be a 'free generator / game hack' for Minecraft, which is a common social engineering tactic to trick users into clicking malicious links.

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.online/app/479516143/are-minecraft-realms-free-game-hack In PDF document text
    • https://perpustakaan.stami.ac.id/repository/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/roblox-rape_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/cm-daily-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/minecraft-free-download-no-virus_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/descargar-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/coin-master-game-hunter_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/how-to-earn-free-stars-on-coin-master_GM406889139.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_off0000517c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x517C 25336 bytes
SHA-256: 09d8f4312cf5470e78f13b6a20bf05fe4d3e01e060f8d52c2d846bfd15e65cbb
font_01_sfnt_off000088af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88AF 17900 bytes
SHA-256: 8eb15ed8310af5fb76432a47ac68b1e7755fcf2aff13e182d9ea68cdb87c7182

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