Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee200eac5ba6a77e…

MALICIOUS

PDF

34.4 KB Created: 2021-06-26 15:14:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: d5fc01d9b8d295237306c89ac276de3c SHA-1: 31f7037381eabb4c4b92451cc0aa28e4191242e2 SHA-256: ee200eac5ba6a77eaa422f513735f62464f77c2d8f621a11b288d24f7db18242
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, masquerading as game hacks for popular titles like Roblox and Coin Master. The primary lure appears to be a 'free generator / game hack' which is a common social engineering tactic to entice users into clicking malicious links. The ML classifier strongly indicated maliciousness, and the embedded URLs are known to be associated with redirector services.

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/trigon-roblox-hack-game-hack In PDF document text
    • https://vierabyragazze.com/upload/files/wizard-hacks_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-free-on-xbox-one_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robux-hacks-code-admin-commands_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-hack-anti-ban_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-magic-training-hack_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-links-for-free-spins-2021_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_off00002fa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA7 22600 bytes
SHA-256: f9014723e05d3212bae9c56fcca982d9e9b04f66212e5bed8a723c96ab6d41aa
font_01_sfnt_off000061fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FE 18776 bytes
SHA-256: ea9df2092591adb26b7b35e2ae3bcfc7a0acf87ccdf38eca163f2f45b4ff20e9

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