Malicious PDF — malware analysis report

Static analysis result for SHA-256 96a2abfa4d25c273…

MALICIOUS

PDF

41.9 KB Created: 2021-05-16 08:56:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d702857a13a78b4bda8679c661b1b797 SHA-1: 9bb893555405bd1fcc3edccba4773ebe227218f7 SHA-256: 96a2abfa4d25c273278018ce4cfcbd81d2c51de066a14bf3983399c75a31168f
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 0.9971

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.xyz/app/479516143/best-hacked-client-game-hack PDF link annotation
    • http://www.myresidence.lu/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/hack-robux_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/hack-coin-master-1_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/robux-withdraw_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/robux-gainer_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-do-i-get-robux_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://www.myresidence.lu/userfiles/files/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A3B 24808 bytes
SHA-256: 96d8c305ee200bbfa885e15b2926fe614bb14ce9417926e6449e955d96ca3a17
font_01_sfnt_off000081d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D3 18200 bytes
SHA-256: 433705e2a5b000201a89731af92cc6a86737b8d7ef1f7f9bc153edc0cbe11e57

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