Malicious PDF — malware analysis report

Static analysis result for SHA-256 2763a2f81fe661a6…

MALICIOUS

PDF

34.9 KB Created: 2021-06-27 05:25:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: c80a2b2022ab5e8706dc013b2868dee2 SHA-1: 089db5accc8d670038e6aa0aa74320eb14bffe11 SHA-256: 2763a2f81fe661a63d7d14668ded9b5a0e6b61a918b89e07c8ae50cfe42e6c20
160 Risk Score

Malware Insights

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

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator' or 'game hack' lures. The primary link, http://netcdn.co/app/431946152/how-to-get-free-shirts-roblox-2021-game-hack, is flagged as a known malicious redirector. The document's content and embedded links suggest an attempt to trick users into visiting potentially harmful sites, likely for credential harvesting or further malware delivery.

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/how-to-get-free-shirts-roblox-2021-game-hack In PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/cheats-for-egg-farm-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-to-speed-hack-roblox-booga-booga_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/i-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/hack-pc-with-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-do-we-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-robux-hack-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-to-fix-elysian-roblox-hack-crash_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/coin-master-hack-programmers_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-hack-any-game_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/roblox-free-exploits_GM431946152.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/how-to-duplicate-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.iaiqi.ac.id/repository/coin-master-hack-apk-2021-ios_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_off00002f8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8C 22540 bytes
SHA-256: 0794b3a226d01e077e24571ae3d1d4011eea9b6e63f23e759db336544060f5c5
font_01_sfnt_off00006196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6196 19604 bytes
SHA-256: c6ec7dc63b1c74b598ed373672e473e685852567579717aa5a6ff31c33757f39

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