Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd5948bcbd248cef…

MALICIOUS

PDF

37.7 KB Created: 2021-06-19 07:04:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: df8266e2a7e57e84856b46f4deafbe75 SHA-1: a655fbc8a07b457b3412ec69521058fa4af9dce5 SHA-256: bd5948bcbd248cef444a6e776a4b9e56611ffb2f3269bf4fffcd13c425d00e9a
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, forming a link farm, that direct users to websites offering game-related cheats and hacks. The ML classifier and the presence of a "download button" heuristic indicate a malicious intent, likely to trick users into downloading further malware or engaging in phishing. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 http://netcdn.co/app/431946152/how-to-make-a-cool-free-roblox-acount-game-hack PDF link annotation
    • http://d-cision.nl/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/roblox-prison-life-hack-download-2021_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/work-in-a-pizza-place-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://d-cision.nl/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://d-cision.nl/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://d-cision.nl/images/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://d-cision.nl/images/real-free-robux-generator_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_off00003c7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C7E 22272 bytes
SHA-256: cc189c4e92a02c48f8ff19a0ffac7e15b7054c3d914361da10a8ecbeaa112a05
font_01_sfnt_off00006e02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E02 19240 bytes
SHA-256: 8487d5db78d4b4e2412720e45eff94b6fae49b320403be2c01479d4d6ee60314

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