Malicious PDF — malware analysis report

Static analysis result for SHA-256 69879c5383a0ead9…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 22:28:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 009c3a5d6f48d924394c41fd7934b651 SHA-1: 37e480644040caade614116c72ea0cf56d483502 SHA-256: 69879c5383a0ead9bf36a5f8379f9ef66c14f4274e8ce6f71ec1903b78636b46
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/406889139/free-appsfor-coin-master-daily-rewards-game-hack. The document body and embedded links suggest a lure for game hacks or currency, which is a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a malicious redirection 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.tw/app/406889139/free-appsfor-coin-master-daily-rewards-game-hack In PDF document text
    • http://lib.baruna-husada.ac.id/repository/roblox-deadzone-remade-hack_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/hacks-roblox_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/free-robux-without-emails-passwords-and-ccontact-number_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/how-to-get-free-robux-google_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/roblox-hacked-face-id_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/how-to-use-cheat-engine-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/how-to-hack-roblox-high-school-2021_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id//repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://lib.baruna-husada.ac.id/repository/free-mod-apk-coin-master_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
stream_002_off00002ed5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2ED5 22756 bytes
SHA-256: 3d0c06a28a4833c65c4531774c6b9016a27ca3d956f6a6b6687c5343d677b5e6
font_01_sfnt_off000061b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B2 18932 bytes
SHA-256: 23f2122d1e025a40a200fe5bf9e157b0cd475f9e07a39137d42bc2e355502eb2

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