Malicious PDF — malware analysis report

Static analysis result for SHA-256 45717002214f6790…

MALICIOUS

PDF

27.3 KB Created: 2020-04-19 20:22:57 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 431029cf9cc34d63516d5bb84eac3f4d SHA-1: 707708682626c7b1bbbcce0bd3367d520d0530e5 SHA-256: 45717002214f6790f622f046e1c250b915c7a030b1c01c5df904785080d1daaa
70 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, many of which appear to be part of a link farm designed to manipulate search engine results. The presence of a 'download button' lure further suggests an intent to trick users into navigating to these external resources. The document body is largely unreadable, but the embedded URLs are the primary indicators of malicious activity.

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://multitechnrj.org/uploads/1/3/0/6/130640145/130640145.html#abcd+songs++naa
    • http://paragontax.net/uploads/1/3/0/6/130621814/sumazev.pdf
    • http://silverspur.org/uploads/1/3/0/3/130379611/201657.pdf
    • http://lebonplombierpro.com/uploads/1/3/0/9/130969681/bolivomudij.pdf
    • http://mopssheboygan.com/uploads/1/3/1/3/131384791/laxelakavota_puwadosotedeg_fapotejekusidus_womoseririfaju.pdf
    • http://toghumble.com/uploads/1/3/1/4/131455621/nosawadizopeki.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000044a1.bin
d48c25e38b5bc1cf920c6a899652f0b13e0583d211541b9ad30052e921d5d9a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44A1 7624 bytes

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