Malicious PDF — malware analysis report

Static analysis result for SHA-256 845c20a595770cd5…

MALICIOUS

PDF

26.0 KB Created: 2021-05-13 18:31:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a94fa71b7e9ee9bc9091b44203ffaf13 SHA-1: 6308926a1437ef3baa6fd139366970f5e1b64c0b SHA-256: 845c20a595770cd527ca1b293c5c20bddf6005ec2abf1bacd21c2a60b68f2501
74 Risk Score

Malware Insights

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

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

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 3

  • 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.
  • 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.xyz/app/431946152/robux-com-free-game-hack PDF link annotation
    • http://www.mediaxin.net/images/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • http://www.mediaxin.net/images/free-private-server-roblox_GM431946152.pdfIn PDF document text
    • http://www.mediaxin.net/images/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://www.mediaxin.net/images/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.mediaxin.net/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.mediaxin.net/images/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://www.mediaxin.net/images/play-full-version-of-minecraft-for-free-no-download_GM479516143.pdfIn PDF document text
    • http://www.mediaxin.net/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mediaxin.net/images/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://www.mediaxin.net/images/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://www.mediaxin.net/images/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://www.mediaxin.net/images/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mediaxin.net/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.mediaxin.net/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.mediaxin.net/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.mediaxin.net/images/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.mediaxin.net/images/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://www.mediaxin.net/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.mediaxin.net/images/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.mediaxin.net/images/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ac0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AC0 10377 bytes
SHA-256: 9dc49233da4475581c2d3ee5994a37c7984dc0f496dcf163ed641a6e19469950

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