Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a3856f0e15e0497…

MALICIOUS

PDF

34.8 KB Created: 2020-03-18 13:43:23 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 68437ded50f7b556407f1322ae5442c2 SHA-1: 270f727060c8f6808fbee442a7aecbd046b4e253 SHA-256: 1a3856f0e15e0497ab834ab7d86bf382049a0c9d4a277b6f6a1aad9a601bfd11
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 to other PDF files hosted across numerous domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The primary heuristic firing, PDF_SEO_LINK_FARM, directly supports this assessment, highlighting the mass of external links. 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://victoriasaesthetics.net/uploads/1/3/0/6/130604354/130604354.html#planos+cimentacion+pdf
    • http://www.sevenjames.com/uploads/1/3/1/0/131071290/romofoju_bosev.pdf
    • http://www.zhou-quan.com/uploads/1/3/0/5/130588858/9a3b82bcbd32.pdf
    • http://tampabayreflexology.com/uploads/1/3/0/6/130640022/51448296.pdf
    • http://donkeytonkacres.com/uploads/1/3/1/1/131164272/nipizemix.pdf
    • http://hostmaster.ledsamart.com/uploads/1/3/0/6/130639899/342dd8ba3.pdf
    • http://logisticsmaps.com/uploads/1/3/0/4/130489331/beefa4.pdf
    • http://mail.jamiemanning.com.au/uploads/1/3/0/6/130639971/1623254.pdf
    • http://zaraservice.com/uploads/1/3/0/7/130738625/rofulazujopivi_tokobalikovada.pdf
    • http://lifekeys.style/uploads/1/3/0/6/130604257/209648.pdf
    • http://audiovisualrights.com/uploads/1/3/0/5/130539093/pumiwivererobewo.pdf
    • http://www.purepulse.net/uploads/1/3/0/7/130740618/1744923.pdf
    • http://csim-ifm.com/uploads/1/3/0/3/130323750/8497dc.pdf
    • http://massagesuccesstips.com/uploads/1/3/0/8/130813701/ruluzuf.pdf
    • http://jfunkgeo.com/uploads/1/3/0/3/130323318/wuvabet_tivota_kesoledat.pdf
    • http://74-123-75-168.mgwnet.com/uploads/1/3/0/7/130739235/7402406.pdf
    • http://mta-sts.enviodecargacostarica.com/uploads/1/3/0/7/130776747/427a1d8adf4.pdf
    • http://noahdebiase.com/uploads/1/3/0/4/130494801/nivofam_lawigaf_wesoxokulabogug_roxewi.pdf
    • http://jerdoninnovations.net/uploads/1/3/0/9/130969264/3172068.pdf
    • http://ctslegalservices.com/uploads/1/3/0/3/130379561/1399621.pdf
    • http://whitelicksoapco.com/uploads/1/3/0/7/130776026/zapimamimel-letivopiki.pdf
    • http://crystallineheartcenter.org/uploads/1/3/0/3/130323158/5309263.pdf
    • http://hemmisong.com/uploads/1/3/0/4/130483187/4517597.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_off00006393.bin
ed96ac9988717fa04f8a41053f9a452cc35b4fc16cd2fad3756d5c1de620ba60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6393 6668 bytes

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