Malicious PDF — malware analysis report

Static analysis result for SHA-256 59e67bc50b9c57cc…

MALICIOUS

PDF

43.7 KB Created: 2020-04-03 08:16:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a9fe72fe7f6fd97c25b184fa9bf49d7a SHA-1: 212f33a2a8ec95dfbfc26772c6ddbc39d0aaf733 SHA-256: 59e67bc50b9c57ccf30e32a8244557d2112776c37f1ebb4d6f4c538de6902308
92 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a mass external link farm. The embedded URLs point to various PDF files on different domains, suggesting a coordinated effort to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://saikiran-animation.com/uploads/1/3/0/2/130271028/130271028.html#character+analysis+stanley+yelnats
    • http://elitelevelathlete.com/uploads/1/3/0/2/130288643/mugurelijufafo_nalupafowo_vuvipofejejoj_felibuzizasone.pdf
    • http://jojobranding.com/uploads/1/3/1/4/131452778/xesifunugusabo.pdf
    • http://mx.recordboxtruck.com/uploads/1/3/0/7/130738567/widapitifepomunukub.pdf
    • http://greenvillenutritiontherapy.com/uploads/1/3/0/6/130620320/nijebotabememagaj.pdf
    • http://pantheraleollc.com/uploads/1/3/0/9/130969616/tapobeliluxesogejusi.pdf
    • http://cookiesandcrystals.com/uploads/1/3/0/6/130640072/732bbfe83aead9.pdf
    • http://lookatmyunion.org/uploads/1/3/0/4/130488470/5c22b9f21e4ae.pdf
    • http://rogerrealty.com/uploads/1/3/0/6/130604688/38091112b9.pdf
    • http://tourephotos.com/uploads/1/3/0/5/130544230/dobavirodo.pdf
    • http://wanderingteuchter.com/uploads/1/3/0/9/130969502/5192144.pdf
    • http://opennetworkers.info/uploads/1/3/0/5/130539800/kizujos_simujadodor_ripogon_zakajivi.pdf
    • http://machomigos.com/uploads/1/3/0/3/130379821/sujibo.pdf
    • http://sahfsebertahunterfoundation.net/uploads/1/3/1/3/131381521/munitedasunan.pdf
    • http://nabssociety.org/uploads/1/3/0/2/130289508/xesazunemigamose.pdf
    • http://kosmikwearuniverse.com/uploads/1/3/0/6/130620846/bowukato-lupemakibova.pdf
    • http://www.hmmenuiseries76.fr/uploads/1/3/0/6/130621201/vemizebovugej.pdf
    • http://gmckosmetik.com/uploads/1/3/0/7/130775647/segabugena_vitagu.pdf
    • http://charterpathways.com/uploads/1/3/0/9/130969965/5058675.pdf
    • http://adsl-63-204-18-59.benefitplans.org/uploads/1/3/0/7/130740363/ralewutoni-kakinokabo-sawif-kosagaba.pdf
    • http://my-lakeview.com/uploads/1/3/0/5/130588839/litanifizedubel.pdf
    • http://mmdrentals.com/uploads/1/3/1/3/131398204/c9d89176485fcdb.pdf
    • http://hanvengrove.com/uploads/1/3/0/6/130621115/muriwokuw.pdf
    • http://uservite.com/uploads/1/3/0/8/130814011/1772867.pdf
    • http://landcompanymich.com/uploads/1/3/0/7/130739330/befamepujeja.pdf
    • http://uservite.com/upload
    • 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_off0000831f.bin
e7323f01824ab8c6832816dd6c951b0c44d954676c2ac58dd205920c79aec58b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x831F 7584 bytes

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