Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bb5532e9374be7a…

MALICIOUS

PDF

34.1 KB Created: 2021-07-08 13:11:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: cba86b7aad07958f4495d6c5398b0054 SHA-1: 79681767b01ca946a01ce1d712c0ca6a6b68e358 SHA-256: 9bb5532e9374be7a3933d9ec423b2a1cd3a3c9591a8dd542519054766d016ad9
102 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to files hosted on shjbottle.com, suggesting a link farm designed to distribute malware. The document body and extracted URLs indicate a lure related to game hacks and in-game currency, likely to entice users to download malicious payloads. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 http://netcdn.tw/app/431946152/easypoints-gg-roblox-game-hack PDF link annotation
    • https://shjbottle.com/upload/files/get-tons-of-robux-free_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-free-builders-club-on-roblox-hack_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-2021-free-items_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-hack-apk-android-1_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/cheat-roblox-lumber-tycoon-2-jump_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/robux-adder-hack_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/hacks-and-cheats-for-coin-master_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_off00002f6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6C 22004 bytes
SHA-256: 5bd91cbd36a5cb1b8e346616d70eb8dd32a3668048be759595d49cc82f4431c5
font_01_sfnt_off0000601f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601F 19064 bytes
SHA-256: 01c10a7332caa0c561f973fc51c4b3474d885669c53a74b349ff888e79e7ac51

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