Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cb08cfd8f482dc7…

MALICIOUS

PDF

44.5 KB Created: 2021-06-09 12:13:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cb5c163850dc8ccb4603d71207463d84 SHA-1: 6ef5c276de85ce861f61b179b72d0d12efb22f2d SHA-256: 4cb08cfd8f482dc7ebc5d595d0ee98bfa1e2c45f4ecfaa104adfa727523d33ba
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.tw/app/431946152/get-a-castle-for-free-roblox-game-hack PDF link annotation
    • https://www.romedia.gr/images/roblox-prison-life-gui-hacks_GM431946152.pdfIn PDF document text
    • https://www.romedia.gr/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • https://www.romedia.gr/images/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.romedia.gr/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.romedia.gr/images/minecraft-hacks-xbox_GM479516143.pdfIn PDF document text
    • https://www.romedia.gr/images/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://www.romedia.gr/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://www.romedia.gr/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.romedia.gr/images/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • https://www.romedia.gr/images/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.romedia.gr/images/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.romedia.gr/images/rbx-website_GM431946152.pdfIn PDF document text
    • https://www.romedia.gr/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://www.romedia.gr/images/is-hello-neighbour-free-to-download-of-roblox_GM431946152.pdfIn PDF document text
    • https://www.romedia.gr/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.romedia.gr/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.romedia.gr/images/free-robux-working_GM431946152.pdfIn PDF document text
    • https://www.romedia.gr/images/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://www.romedia.gr/images/free-robux-no-games-to-download_GM431946152.pdfIn PDF document text
    • https://www.romedia.gr/images/coin-master-hack-without-human-verification-2021_GM406889139.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_004_off00004fbe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FBE 25572 bytes
SHA-256: 141f9a7fbe8d8c363f00e4f56a6ec118e999dd7607e79e03ce69a3f2db6cc644
font_01_sfnt_off00008b73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B73 18280 bytes
SHA-256: 38ff260e0ecc409f9226e06fa7ec8ebc8e66d0bf6a03e9b738c7741cd1f2eb02

Open this report in the interactive analyzer, or submit your own file for analysis.