Malicious PDF — malware analysis report

Static analysis result for SHA-256 1233aa26340af9f7…

MALICIOUS

PDF

45.5 KB Created: 2021-05-13 07:40:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: f2190bff276daf5da995fc88fdf8c0d2 SHA-1: f2f55b8d2d5088f2e961b71a2c1bb260b613a160 SHA-256: 1233aa26340af9f7afd71ebe83dfdb74e6ef4ea4e0a3f95dfdd4b8cf299d6564
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to lure users into downloading game hacks and cheats. The primary link redirects to known malicious infrastructure, suggesting a phishing or malware distribution attempt. The document body and embedded links are consistent with a social engineering tactic to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/coin-master-hack-download-ios-game-hack In PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-mod-game-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-client_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-blogspot_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hackear-coin-master-sin-root_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49A7 26288 bytes
SHA-256: d9264a1c24f234843ce6d3e39cebe62d70a35715d57f3fbfb50e2836aa4f90d0
font_01_sfnt_off00008537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8537 2920 bytes
SHA-256: 601c50867a41b9362538ff18e5f9479a0f9badf698aaf1eb7e88469c11719db7
font_02_sfnt_off00008f51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F51 18296 bytes
SHA-256: eb74dfbf061b28f56530c4f3611099698c9338eeb1cc06642e5044c6dd5fa24e

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