Malicious PDF — malware analysis report

Static analysis result for SHA-256 02dcd4298316c3b7…

MALICIOUS

PDF

35.5 KB Created: 2021-06-26 00:12:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 89f2d84b9e8a5640470bf8a0683b45b4 SHA-1: 923032135637d26883b479995041c46e5741cf82 SHA-256: 02dcd4298316c3b78386f7f2996d2fc6145777f3d7b65572bd313a879eaaf737
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, many of which are related to game hacks and free currency, suggesting a lure for users interested in such topics. The presence of a fake CAPTCHA heuristic indicates a social engineering tactic to trick users into interacting with the document, likely by clicking these links. The document body and extracted URLs reinforce the theme of exploiting games like Roblox and Coin Master, pointing towards a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.co/app/431946152/i-am-gonna-hack-your-roblox-account-game-hack
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/hack-coin-master-link_GM406889139.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-robux-dylan-grant_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-robux-no-scam_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/roblox-apocalypse-rising-hack-2021-still-working_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/can-you-get-free-tiktok-followers_GM835599320.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/www-free-robux_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/cheats-in-roblox-pet-simulator_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/blueberry-roblox-hack_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/is-there-any-way-to-get-free-robux_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/roblox-jailbreak-money-hack-no-human-verification_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/coin-master-time-hack-2021_GM406889139.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-robux-with-nopde_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/free-golden-suit-roblox_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/robuxy-com-free-robux_GM431946152.pdf
    • https://digilib.stkip-pgri-sumbar.ac.id/repository/coin-master-free-spins-usa-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000321e.bin
61102ae39f467f7ccff1a39e00f55f8455fc520503161b45fdb41f7cceb452a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x321E 22808 bytes
font_01_sfnt_off000064ef.bin
3f7f32dc079f7d740dd0d0bc458e9b5d437a4069ccdbe4e3554b662a32a3bc2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64EF 19324 bytes

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