Malicious PDF — malware analysis report

Static analysis result for SHA-256 53418e6951794c80…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 10:01:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 38e574e65b92fddf69f9e499e008b5b9 SHA-1: a3552ef60094aec006760795646597121d610100 SHA-256: 53418e6951794c80deea4fd5badaca6e4f09589f90e60b5b82724f5b1bf6984a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be a game hack or free currency generator. These links redirect to malicious infrastructure, indicating a phishing or scam attempt. The presence of a download button lure further supports this malicious workflow.

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/431946152/prison-life-roblox-hacks-game-hack In PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/robux-prices_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-100-spin-slot_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coinmasterfreespinlink_GM406889139.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_off00004eb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB1 26684 bytes
SHA-256: ea87ca15f2b4fe3df5d3e19e814e466dae29b7c334a619c447480205e88082dd
font_01_sfnt_off00008a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8E 18456 bytes
SHA-256: fab57b4e4fdae2397ca7a2df80bd886163a403076cb689fed0106591c842b8c1

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