Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a820ef7e2f52743…

MALICIOUS

PDF

34.7 KB Created: 2020-04-04 07:04:27 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5db8a4a19e55847f9941ce137847dea7 SHA-1: c0efc19eaddfe5676161ce18f54102b1920b623c SHA-256: 3a820ef7e2f52743731a8a14ca34a62e767e538b6c2d70ac783a40872e8ad4d6
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO abuse tactic. The document body, though partially corrupted, indicates it is presented as a worksheet answer key, a common lure. The primary intent appears to be directing users to a network of potentially malicious or spam-related websites.

Heuristics 3

  • 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.
  • 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://timeframingconsulting.com/uploads/1/3/0/5/130544086/130544086.html#four+types+of+sentences+worksheet+answer+key
    • http://m1movement.com/uploads/1/3/0/3/130323485/kukas-gosoveze-zodid.pdf
    • http://poufmindbath.com/uploads/1/3/0/7/130738972/6cccb04ef10260.pdf
    • http://arminsuranceplan.com/uploads/1/3/0/4/130436182/gemeliwut.pdf
    • http://thejourneybeginswith.com/uploads/1/3/1/3/131384708/466952.pdf
    • http://wellness-restored.com/uploads/1/3/0/7/130739061/lobamarurin.pdf
    • http://windrosecontabil.com/uploads/1/3/0/6/130621324/8522360.pdf
    • http://africamma.org/uploads/1/3/0/8/130814562/d8885c727d.pdf
    • http://acesconcept.net/uploads/1/3/0/2/130289610/furiwifov_dugifivepepe_xikepuzuzudata_dagufev.pdf
    • http://ewrindustries.com/uploads/1/3/0/4/130483345/6083748.pdf
    • http://thestandguild.com/uploads/1/3/0/8/130814643/5ef6672.pdf
    • http://10komobile.net/uploads/1/3/0/6/130639452/b3a52.pdf
    • http://gracestreetstrategies.com/uploads/1/3/0/7/130739595/bujepiwafivebibu.pdf
    • http://trindesigns.com/uploads/1/3/1/3/131383681/9632959.pdf
    • http://tktilings.com/uploads/1/3/0/5/130544823/luxadulapavu.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_off00006039.bin
c6353f839d1b0c7387830e356270548ba991e30316d283d7cecb239edd4317e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6039 7500 bytes

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