Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1f61f1a21101809…

MALICIOUS

PDF

47.5 KB Created: 2021-06-03 07:10:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f5f84810ccceeca222035dd8fcff4301 SHA-1: 8d2487ef9ac42c7c4c33761f5518d3137168be78 SHA-256: c1f61f1a211018093d5fc3974be89e40d488a1a0003154a40f98f124f11f01e0
142 Risk Score

Malware Insights

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

This PDF document employs a lure related to free game hacks and impersonates Microsoft to trick users into clicking a malicious link. The primary link directs to 'https://netcdn.online/app/479516143/how-to-make-your-own-minecraft-pe-server-for-free-game-hack', which is likely a credential phishing page or a download site for further malware. The document's structure and embedded links strongly suggest a malicious intent to exploit user interest in free in-game items or cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 6

  • 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.online/app/479516143/how-to-make-your-own-minecraft-pe-server-for-free-game-hack.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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.online/app/479516143/how-to-make-your-own-minecraft-pe-server-for-free-game-hack PDF link annotation
    • http://www.valenciamaids.com/userfiles/files/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-hack-spins-app_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-private-server-roblox_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/minecraft-hack-client-18-9_GM479516143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005339.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5339 24784 bytes
SHA-256: 0f9c1a65cd0767543afd4e2d35adfca8a08c4eeda5b5ff255b676e6c46bf2102
font_01_sfnt_off00008b9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B9F 3020 bytes
SHA-256: c2b80e6f57cc4e0a2fcf8ccc24b2de30f27537b86baa4983a359b36850a4b799
font_02_sfnt_off0000960e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x960E 18616 bytes
SHA-256: 7f1ed811d94b63e364c058ff1b231f2e8228461263d94dfafa7c0dfe2cf4e047

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