Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1ded1a19fcabe67…

MALICIOUS

PDF

44.5 KB Created: 2020-07-08 15:00:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c36ade1ac62b12a16663a76bb5ecbea7 SHA-1: b927842d9fd9185e0fc426b8a1424f6a1c948fbd SHA-256: b1ded1a19fcabe67ebe15f41a177d36ba1f0bc288be7c97d70aa429946594741
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

This PDF document contains a large number of embedded links, identified as a PDF link farm. One of the primary links redirects to a known malicious infrastructure at 'ttraff.com'. The document body, though partially corrupted, contains text related to a '2016 subaru legacy limited owners manual', suggesting a lure to disguise the malicious links. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.com/wb?keyword=2016%20subaru%20legacy%20limited%20owners%20manual
    • http://files.balloontwistersdcvamd.com/uploads/1/3/0/9/130969375/gipagazovupibiz_tolokaduwimola.pdf
    • http://files.broadbandaccess.org/uploads/1/3/2/6/132695572/2298a.pdf
    • http://files.topgrouptravel.com/uploads/1/3/0/9/130969503/wetidopijubo-pojofitop-pupikibutuji-xazufufetinexe.pdf
    • http://files.listowelchildcare.com/uploads/1/3/1/6/131636914/af15734bdd.pdf
    • http://files.computerscpr.com/uploads/1/3/2/7/132740860/xubujolodosetejokuv.pdf
    • http://files.illinoismep.com/uploads/1/3/1/6/131606550/c1b3ef.pdf
    • http://files.breedingforthefuture.com/uploads/1/3/2/6/132681566/sutavumuz.pdf
    • http://files.quantumpoint.org/uploads/1/3/0/8/130874031/fexurugomaseba_livorejalolokib_kuluvewowa.pdf
    • http://files.whitegallowaysofwayby.com/uploads/1/3/0/8/130873907/fewubogukobavel-sixomolimu-mifip.pdf
    • http://files.otterworksusa.com/uploads/1/3/1/4/131437351/tasegus-rekafi-zeganusisaj-jigavulef.pdf
    • https://pijugelupuw.files.wordpress.com/2020/07/82586682255.pdf
    • https://joguvabevas.files.wordpress.com/2020/07/pipufobarer.pdf
    • https://jekiwex.files.wordpress.com/2020/06/bemiwo.pdf
    • https://pixapivuba.files.wordpress.com/2020/07/80994160045.pdf
    • https://xemavepin.files.wordpress.com/2020/07/sivogurisegubota.pdf
    • https://zudazomup.files.wordpress.com/2020/07/15145198776.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006381.bin
f108485881e627f270cb718c2fa1b02b067ddcba8b04009d92e0ea3597220fbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6381 5860 bytes
font_01_sfnt_off0000775f.bin
f599a5f4b1096c6fa402c319e714d3254577053d84fe2e400d5e7f4c411624ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x775F 14584 bytes

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