Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cb0466f9eb314f2…

MALICIOUS

PDF

33.4 KB Created: 2021-07-01 13:07:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ef720b34d50b587b861fd9fa7ea32006 SHA-1: d27cc11d40e7c4e1194e55c290079f3d2f703e14 SHA-256: 8cb0466f9eb314f2943ad58170156810a779cba527ba0564d6f6c6deaed900f2
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to websites offering game hacks and cheats, specifically targeting Roblox. The heuristic firings indicate these links lead to known malicious redirectors and a lure for game hacks. The document body confirms the lure by mentioning 'Roblox Cheat Gg' and embedding URLs related to game exploits and free Robux. The primary goal appears to be redirecting users to malicious sites that likely host further malicious content or phishing pages.

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/roblox-cheat-gg-game-hack In PDF document text
    • http://mtsn-baranti.com/perpus/repository/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-2k-hacks_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-exploits-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-inspect-needed_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-chrome-extension_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-tix-hack-no-survey_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-promo-codes-2021-robux_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/horse-valley-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/como-jugar-roblox-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hack-place-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-coins-and-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/taste3-com-roblox-online-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hotels-roblox-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/todos-los-hacks-de-check-casher-v3-roblox-prision-life_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
font_00_sfnt_off00002e9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E9C 21732 bytes
SHA-256: 7768ae8d263f7cbab0092b8f0dff0df7868b0af432a566b8f4fb59253818f11d
font_01_sfnt_off00005e43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E43 18756 bytes
SHA-256: 217980efe5694617d97172f675e44461de03fbe106771bcee213d245816dc172

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