Malicious PDF — malware analysis report

Static analysis result for SHA-256 e804f2bc4ec476e3…

MALICIOUS

PDF

35.4 KB Created: 2021-06-25 15:13:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: a47f959b979a302255a9fa5d5314d5b2 SHA-1: c95f29eaa7f9a1943998802285b45d526213b68b SHA-256: e804f2bc4ec476e323fd663dd4264a130171e38fb3320d47b231f48d6e1e8eeb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically targeting users interested in game hacks and free items. The primary lure is a link to 'how-do-i-hack-a-roblox-account-game-hack' hosted on netcdn.co, which is flagged as a malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into clicking these links, likely leading to further malware downloads or phishing attempts.

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-do-i-hack-a-roblox-account-game-hack In PDF document text
    • http://mtsn-baranti.com/perpus/repository/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-the-legendary-swords-2-rpg-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/microsoft-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/gamehunters-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/corn-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-diamonds-roblox-murder-mystery-2_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-no-verification-ios_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins--coins-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-link-2021-today_GM406889139.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
font_00_sfnt_off0000328f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x328F 22500 bytes
SHA-256: c27e4d4ed6d20c304a2a7e111c9737e2464bd149eb9d1f43f4e0740db3734b06
font_01_sfnt_off000064b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B2 19232 bytes
SHA-256: 557b9da23e1a8ea0ed3b11672993e3946864ab778e154f26dd17faac8a5d9827

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