Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c381e6269becea7…

MALICIOUS

PDF

45.0 KB Created: 2021-06-03 15:35:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5335d6a2a365039d95c093c4fc9cb78c SHA-1: 1201254bcecc933b409227379937519e6bbd66e6 SHA-256: 6c381e6269becea78e616ed9ce297d84d984f7b6b88090c84fd397c16cb56b78
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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 https://netcdn.online/app/406889139/coin-master-pc-hack-download-game-hack PDF link annotation
    • https://www.themerchantshouse.co.uk/uploads/files/files/master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/roblox-people-girl_GM431946152.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/pubg-for-uc-free_GM1330123889.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/pokemon-go-free-id_GM1094591345.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/minecraft-java-edition-free-code_GM479516143.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://www.themerchantshouse.co.uk/uploads/files/files/robux-hack-2021_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
stream_004_off00005245.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5245 25264 bytes
SHA-256: 5109ba4127269c6e78e7cd16fd957aafea25fc7de54052399a6aac8d78b58d94
font_01_sfnt_off00008cb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CB3 18448 bytes
SHA-256: 8402008f23238815903f7ba327df2f1e722924fad7259551d96baa1836994324

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