Malicious PDF — malware analysis report

Static analysis result for SHA-256 886124e067d247cb…

MALICIOUS

PDF

41.5 KB Created: 2021-05-10 20:07:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7d2b6e003e34ea78e3b8ebb6c7210e6c SHA-1: 69a0de2a0f3600eeb3ac8cb89952f3811695f874 SHA-256: 886124e067d247cb2eb9594c75c668dd5d9dd4a7aa0eceeecd98e1c75a13717c
82 Risk Score

Malware Insights

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

The PDF document contains multiple links and a lure related to game hacks and free in-game currency, specifically mentioning 'Coin Master' and 'Robux'. The primary link directs to a URL associated with game hacks. This indicates a social engineering tactic to trick users into visiting potentially malicious sites. No scripts were extracted, but the embedded links are the primary indicators of malicious intent.

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/406889139/coin-master-free-spins-link-download-hack-game-hack PDF link annotation
    • https://www.vista-design.hr/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/earn-robux-com_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://www.vista-design.hr/files/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://www.vista-design.hr/files/cmaster-club-coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.vista-design.hr/files/hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://www.vista-design.hr/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.vista-design.hr/files/free-robux-no-verification_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
stream_003_off00004818.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4818 24052 bytes
SHA-256: 4a0b619eb8198e6a917291456c01e2775bd38d78c0451719213a0f5d5464527d
font_01_sfnt_off00007ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE6 18636 bytes
SHA-256: c1ec4201564ac412151aee87dd7e29d753873e3095a9b57a5834a311c08c0525