Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fd4e61ca58ba893…

MALICIOUS

PDF

35.0 KB Created: 2021-06-28 19:52:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3467b56c36cf1eee059ffea2fbf23dc8 SHA-1: cf351dbc38f8d465b6f606bb97b873986e1703fa SHA-256: 5fd4e61ca58ba8936bd2f3c0f3ef899d4186023913d23812fe76ef09169e2c98
160 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and free in-game currency, specifically targeting Roblox and Coin Master. It contains multiple embedded URLs that lead to a known malicious redirector infrastructure and other PDF files hosted on 'ibelive.tw'. The primary malicious link is http://netcdn.co/app/431946152/how-to-hack-a-roblox-account-with-editthiscookie-game-hack, which is identified as a malicious redirector. The document's content and structure strongly suggest it is part of a phishing or scam campaign designed to trick users into visiting malicious sites or downloading further malware.

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.co/app/431946152/how-to-hack-a-roblox-account-with-editthiscookie-game-hack In PDF document text
    • https://ibelive.tw/image/data/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-coin-app_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/roblox-is-hacked-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/horizonmalpha-money-hack-may-2021-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/roblox-free-clothes-girl_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/safe-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/toolbox-apk_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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
font_00_sfnt_off00003124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3124 21972 bytes
SHA-256: d31fb194f52ba166f9eafcc92bf1c27da7aad542e12e3024c3f8bbe47de5e2ee
font_01_sfnt_off000061b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B7 19720 bytes
SHA-256: 8081d6ed82ddf9d3e00ccdabcda287645c7f7098819cea456b24b65609350cd5

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