Malicious PDF — malware analysis report

Static analysis result for SHA-256 57eed250d079f84c…

MALICIOUS

PDF

45.9 KB Created: 2021-05-10 14:19:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fc527cbcfdb74b30b20d94ffbb1eaab3 SHA-1: d9bcff41a02f847e5eaea7dd306f234749fe42ad SHA-256: 57eed250d079f84c85dd4c458fa63405bedfacb3fc2fb64dd61eaba1e4dae7ea
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 0.9432

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/406889139/coin-master-tricks-and-hacks-game-hack PDF link annotation
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-hacks-no-surveys_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/where-to-get-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-block-someone-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/master-hack-coin_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-spin-coin-master-new-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004de9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DE9 25108 bytes
SHA-256: bf99d6bd14f4c4052652159d7fb303e79e88314d60d620e53086fd412233ddd3
font_01_sfnt_off0000884b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x884B 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000091fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91FC 17888 bytes
SHA-256: 6b40f6b54227a57bca670b7ddbf89328ee1638c3cadd4e2aadbe35f25d791a64

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