Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a2e82322945888…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 22:02:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 44477bc87c477adbb22c6ab76ef22db2 SHA-1: 6248bad2cbd903da9b05bfe886bcefc920e714ab SHA-256: c2a2e823229458889e89662410d86d8f62ab03f51477f54ddecac4f73fa7c7f1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector, specifically http://netcdn.tw/app/406889139/coin-master-free-coins-and-spins-link-2021-game-hack. The document body and embedded URLs suggest a lure for game-related cheats or currency, which is a common tactic for phishing and malware distribution. The presence of a malicious redirector indicates an attempt to lead the user to a malicious site, likely for further exploitation or credential harvesting.

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.tw/app/406889139/coin-master-free-coins-and-spins-link-2021-game-hack In PDF document text
    • https://fib.ub.ac.id/sac/repository/free-roblox-gift-card-26-11-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-cheat-engine-alternative-apoc-rising_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-obby-limited-time-only_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-someone-thinks-im-hacking_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-moon-tycoon-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-hack-lvl-dragon-ball-final-stand-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-download-game-free_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-garbage-simulator-script-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/best-roblox-exploits-2021-free_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
font_00_sfnt_off0000307e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307E 23088 bytes
SHA-256: 416559ef91fa28d8710531a7bddf35fef0d5afa9264440636995a668cb778b6a
font_01_sfnt_off00006462.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6462 18920 bytes
SHA-256: ee952cd90f4f1b1265ef728a882b2e1c43fdcfe70326b29f6fa47f3abfb19b4c

Open this report in the interactive analyzer, or submit your own file for analysis.