Malicious PDF — malware analysis report

Static analysis result for SHA-256 878eae5aa3c3a841…

MALICIOUS

PDF

44.7 KB Created: 2021-05-11 05:03:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 12db27f94d739793bec08a94ee86fdb3 SHA-1: dac00517ef480b90597d2144631a5adadb670638 SHA-256: 878eae5aa3c3a84101604da28d6d032c58323606d01a811220d0562c3c53fe24
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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.xyz/app/431946152/free-robux-group-game-hack PDF link annotation
    • http://perpustakaan.ipts.ac.id/repository/free-coin-master-cards-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/facebook-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-hack-org_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/rbx-place-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-hack-unlimited-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_003_off00004a37.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A37 27660 bytes
SHA-256: 5ce2b236c260efc35806f2b6e8a64fa60e8c3525d19c22fc9ce53323c65dfe04
font_01_sfnt_off00008cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC5 18192 bytes
SHA-256: 388213afa323ee085de7e38d37e80f389e12e91d2d5a1b35e5038c11a526558f

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