Malicious PDF — malware analysis report

Static analysis result for SHA-256 265358a9fd177d76…

MALICIOUS

PDF

36.0 KB Created: 2021-07-07 10:27:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 866ccb04f75de78d95bd396e243b9146 SHA-1: 6d77e7c47e5a61a3df967ed607ab6c154e636eec SHA-256: 265358a9fd177d768e227f1c9df6324401a1f82d15d0bd3ff7ffc863b7f84a5b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as a 'free generator / game hack'. The ML classifier strongly flagged this sample as malicious. The embedded URLs are designed to trick users into downloading potentially harmful content or visiting scam websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.tw/app/406889139/legitimate-coin-master-free-spins-apk-game-hack In PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/pubg-uc-unlimited-free_GM1330123889.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/lrgit-free-robux_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/how-to-get-free-robux-not-a-hack_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/roblox-command-tools-hack_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-robux-codes-for-iphone_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/tiktok-free-view-iphone-apk_GM835599320.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/robux-today_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-robux-scamgames-2021_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/roblox-hack-no-survey_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.middleeastautorepair.com/uploaded_files/userfiles/files/free-robux-2021-legit-feb-unpatched-instantly-no-wait_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_002_off0000349d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x349D 23204 bytes
SHA-256: 853a41440f3c9bf204c3536a295e4740220cc3e916063f84be8609810db5a743
font_01_sfnt_off00006919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6919 18604 bytes
SHA-256: b87cbd5be08026ebd281dd8519d989efc4945d4df70191f854a349f55fed381b

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