Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b4da08bf3352eef…

MALICIOUS

PDF

41.7 KB Created: 2021-05-11 07:32:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 410d25af233e66e8be0d196edfb0b016 SHA-1: 2ce4bda0b7ff5359df4b141f7cd0870bf6dc76d5 SHA-256: 8b4da08bf3352eef3cfcca1ab52ba3009846295cc27c8276947c54543d8e55da
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains lures for game hacks and free currency, directing users to external URLs. One URL points to an IP address, indicating a potential attempt to bypass domain-based defenses. The ML classifier strongly flagged this PDF as malicious, suggesting it's designed to lead users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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-free-attack-link-game-hack PDF link annotation
    • http://36.94.36.7/elib//repository/lots-of-robux_GM431946152.pdfPDF link annotation
    • http://36.94.36.7/elib//repository/free-roebucks_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/como-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/earn-robux-sites_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/where-can-i-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/free-promo-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/coin-master-home_GM406889139.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://36.94.36.7/elib/repository/minecraft-bedrock-hacks-windows-10_GM479516143.pdfIn PDF document text
    • http://36.94.36.7/elib//repository/coin-master-free-chest-link_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_off0000490b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x490B 24996 bytes
SHA-256: e8ec7168a01f0339e0017336245dd888d2159a4c1fca48166867db1ce1a45806
font_01_sfnt_off000081ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81CE 17880 bytes
SHA-256: 96402d2e96280801386aa337121127c59561cdc8f458ec32dbe1421b57db916e

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