Malicious PDF — malware analysis report

Static analysis result for SHA-256 060d3271acaa21c3…

MALICIOUS

PDF

43.8 KB Created: 2021-05-19 00:34:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 06ff667835b7ebd2d47d58c047b15db6 SHA-1: fc32ef12e2dc8f1b692927fcfe2a7e6ea76e16e8 SHA-256: 060d3271acaa21c36cdc833ed374a3ee0219644c7abc1bc432fbeefe23f2ed2e
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing. 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 0.9648

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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/1330123889/pubg-uc-hack-game-hack.
  • 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/1330123889/pubg-uc-hack-game-hack PDF link annotation
    • http://rgadventure.com/userfiles/files/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/free-rare-cards-for-coin-master-christmas_GM406889139.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/real-robux_GM431946152.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/coin-master-deals_GM406889139.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/coin-master-free-spin-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/roblox-robux_GM431946152.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/roblox-getting-hacked_GM431946152.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/how-to-hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://rgadventure.com/userfiles/files/free-robux-generator-no-survey_GM431946152.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_off0000451b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x451B 25368 bytes
SHA-256: 9a6f5aa865c71a39fcdbc3243a91288e73265b856c414e4e9952bff0e5f695c4
font_01_sfnt_off00007ee0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE0 2816 bytes
SHA-256: 214f0b8c2b3c279476f862ae08d7e072944da5f6084cbd6130f0ffdc3460b614
font_02_sfnt_off0000888b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x888B 18296 bytes
SHA-256: 7e071f0bf5a08736da31677640a5d03d2986518f837552405f1120afe65bf972

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