Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8dd27e45793801f…

MALICIOUS

PDF

59.3 KB Created: 2020-05-21 15:41:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77ac9cd67e2dce56a85cc9a73c8dc237 SHA-1: 92e608e9a1e631b0b7a069f0e072f3bbf339d7c3 SHA-256: f8dd27e45793801f8896448af116f1e8214a8ae4d1572d17d90924a920c027f6
62 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or phishing campaign. The document body itself is heavily obfuscated and contains some of the same URLs, reinforcing the malicious intent. No scripts were extracted from this sample.

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://4angelstshirts.com/uploads/1/3/0/6/130621432/130621432.html#%25D1%2581%25D0%25BA%25D0%25B0%25D1%2587%25D0%25B0%25D1%2582%25D1%258C+%25D0%25BF%25D1%2580%25D0%25B8%25D0%25BB%25D0%25BE%25D0%25B6%25D0%25B5%25D0%25BD%25D0%25B8%25D0%25B5+%25D0%25BC%25D1%2583%25D0%25BB%25D1%258C%25D1%2582+%25D0%25BD%25D0%25B0+%25D0%25B0%25D0%25BD%25D0%25B4%25D1%2580%25D0%25BE%25D0%25B8%25D0%25B4
    • http://aubonvin.shop/uploads/1/3/0/7/130775806/jofipuk_jakidobox_verepuzegosi.pdf
    • http://freeericlloyd.com/uploads/1/3/1/4/131407414/wevosoduwif.pdf
    • http://tamzinmuir.com/uploads/1/3/0/3/130379285/8153601.pdf
    • http://lakelandfamilydentist.com/uploads/1/3/1/4/131452923/fumudiw-lubojejasaxubu-fokigezup-bonejemonezolen.pdf
    • http://shapeyourbodyfitness.com/uploads/1/3/0/6/130621915/lapaboleja.pdf
    • http://elegantsilkhair.com/uploads/1/3/0/6/130621815/9906453.pdf
    • http://thesupplyguys.org/uploads/1/3/0/8/130873921/f3d12803bbadc56.pdf
    • http://nclandandhome.net/uploads/1/3/1/6/131606257/gigapilogexofizu.pdf
    • http://classnstyle.com/uploads/1/3/0/2/130272344/fanopulajepupu.pdf
    • http://helpingpeopleinneed.net/uploads/1/3/1/1/131163977/ladukaxoxugotop.pdf
    • http://intesamma.com/uploads/1/3/1/3/131398142/zixaxosemile-jexoladinewojet-koler.pdf
    • http://augustandnadia.com/uploads/1/3/0/6/130621426/verazob_nutore_gofetofe_poremedemure.pdf
    • http://drakeoriginalsjewelry.com/uploads/1/3/0/9/130969399/3d112ef8fe.pdf
    • http://nativityoldcatholic.com/uploads/1/3/1/3/131398195/0c3d2.pdf
    • http://emperorscleaners.com/uploads/1/3/0/6/130605048/powug-nizureb.pdf
    • http://smartsell.work/uploads/1/3/1/4/131437779/b4323c62ff501df.pdf
    • http://skycoinfiber.com/uploads/1/3/0/4/130488698/wajosivesav_xurudiji.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_off000096c8.bin
1884097594f7737fdcf2bc89213788447ee6610976719dfa953483641b1752c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96C8 16096 bytes
font_01_sfnt_off0000c8d4.bin
c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC8D4 16204 bytes

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