Malicious PDF — malware analysis report

Static analysis result for SHA-256 745677425da7a3e6…

MALICIOUS

PDF

45.4 KB Created: 2021-06-04 01:26:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 3dfe837b591a95adfdedaebfb720ae78 SHA-1: ec0a260a47e43aa50f5a573ce64cbfdccafa7e71 SHA-256: 745677425da7a3e640b031689ca2b3025cfab9af95c72c680578034eedc2ead6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack lure, directing users to a known malicious redirector. The document body, though truncated, also contains the same URL, reinforcing the lure. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the primary attack vector appears to be a phishing lure leading to a malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/479516143/minecraft-pe-free-download-game-hack In PDF document text
    • https://library.fdk.ac.id/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/minecraft-ps3-free-download_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/wurst-112-2_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/roblox-hacks-phantom-forces-2021_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.fdk.ac.id/repository/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000054d7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54D7 25084 bytes
SHA-256: c63ab861aca7b0451faed6fcf3d2718adc3e512dd134a626b8bfbe4ff18bf6b7
font_01_sfnt_off00008e5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E5F 18444 bytes
SHA-256: 41511c969eed7dcbefdd8737ff0e878d59d6c8a64165a5defd1345ec3b98e320

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