Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d01e9a18b6f3883…

MALICIOUS

PDF

35.2 KB Created: 2021-06-18 08:58:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 922b1d43054cde3ceec326f147a98a97 SHA-1: ab33dd4542c20b444801f0fd9c935685bb0d9884 SHA-256: 5d01e9a18b6f3883e7f41455d2b65fc79bd89d48623d180fc738a964add5aa1d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links, including one pointing to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/roblox-apocalypse-rising-speed-hack-2021-game-hack. The document body and heuristics suggest a lure for game hacks, likely intended to lead users to download further malware or engage in phishing. No scripts were extracted from this sample, but the presence of malicious redirectors and the lure indicate a high likelihood of a malicious workflow.

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/roblox-apocalypse-rising-speed-hack-2021-game-hack In PDF document text
    • https://i-tech.ac.id/perpus/repository/roblox-project-pokemon-hack-script_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/is-it-illegal-to-hack-on-roblox_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-mode-menu-works-roblox_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/how-to-make-a-roblox-shirt-for-free_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-roblox-injector-for-hacks-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/dbor-roblox-level-hack_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/roblox-hacker-tshirts-images_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/tiktok-free-like_GM835599320.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-glitch_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/best-roblox-hacks-for-unfiltered-games_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-generator-2021_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_off0000318f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x318F 22000 bytes
SHA-256: a3249e19b2c1ba43fc6d521df433264cb1379dfe545118e8029cc7d5a481d1c5
font_01_sfnt_off0000623b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623B 19708 bytes
SHA-256: c3bd1903e77f609c7a50c60b34f2a3e5cad1347d6222824102cbf0493dda1e7c