Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f0d858468e94dc3…

MALICIOUS

PDF

42.6 KB Created: 2021-05-19 02:47:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b142696762a37d9666831b77b5d6750c SHA-1: 47fb6cf072b0bc09d5f1d656a95cacc2e3db35de SHA-256: 1f0d858468e94dc3e66a52ab1e07921ce1bbfe6c9f1e55bf2a9f249aef6513d0
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, 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 0.9971

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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-gold-cards-hack-2021-game-hack PDF link annotation
    • https://abqyorkrite.org/images/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/what-is-exploiting-in-roblox_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/coin-master-free-spins-instagram_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/coin-master-pc-hack-download_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/best-way-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://abqyorkrite.org/images/weird-roblox_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-coins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/roblox-hack-app_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/coin-master-free-spins-link-2021-blogger_GM406889139.pdfIn PDF document text
    • https://abqyorkrite.org/images/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://abqyorkrite.org/images/free-spin-link-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_003_off00004c17.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C17 24228 bytes
SHA-256: 0da7b3b1697ee73c8a64eac9c19dd06d60c50a759fc29b835f6fc691850244e3
font_01_sfnt_off000083d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D3 18364 bytes
SHA-256: 25adfc3027f21b1e38f42a07395fd323d291e4477c7e958d1480243ffe9b6b95

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