Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e2e6abdfe493833…

MALICIOUS

PDF

60.3 KB Created: 2020-03-07 22:03:47 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9aefe878b50c21a335fe15f061976fda SHA-1: 97101fb1ddfcdf2d24846b603dd8c7aec45a51ab SHA-256: 7e2e6abdfe493833e8a3df931c326ec1dc08ccb3460c2cb1bbe656dcf4a95719
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of external links, many of which point to similarly structured URLs on different domains. This behavior is indicative of a link farm or a phishing lure designed to direct users to malicious websites. The ML classifier strongly supports the malicious verdict. The document body, though heavily obfuscated, contains references to medical terms and the wkhtmltopdf application, suggesting a deceptive pretext.

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://podollansa.devsite-1.com/uploads/1/3/0/8/130874130/130874130.html#pancreatic+ductal+adenocarcinoma+cell+lines
    • http://cancercareyoungadults.org/uploads/1/3/0/6/130604988/d1bca.pdf
    • http://arty-lab.com/uploads/1/3/0/4/130475959/4555711.pdf
    • http://www.biscuiteering.com/uploads/1/3/0/7/130776639/doretubareki_nulagejesefa.pdf
    • http://lanovapizzabk.com/uploads/1/3/0/6/130640021/dutepopogexo.pdf
    • http://loveinspiresweat.com/uploads/1/3/0/4/130435729/1205ce739.pdf
    • http://cellitelectronics.com/uploads/1/3/0/3/130313454/7dc96945dbeb81.pdf
    • http://pulsewx.com/uploads/1/3/0/2/130289246/luxuzojinumutefamug.pdf
    • http://hyunsookimmedia.com/uploads/1/3/0/2/130274263/5758686.pdf
    • http://sportanalyticsinternational.com/uploads/1/3/0/6/130639872/2873583.pdf
    • http://mobile-tech24.com/uploads/1/3/0/5/130590308/727448f5a6f5a6.pdf
    • http://europeanculinaries.com/uploads/1/3/0/6/130605498/6149196.pdf
    • http://justtalkingoutloud.org/uploads/1/3/0/5/130589166/361853.pdf
    • http://karmayogamx.com/uploads/1/3/0/8/130874403/jumaruwazofape.pdf
    • http://contours-boulevard.com/uploads/1/3/0/5/130539034/53a2147975bd13.pdf
    • http://sarinabenn.com/uploads/1/3/0/4/130489172/tujegivojazibu_sopiditefamep.pdf
    • http://silentprotagonistgames.com/uploads/1/3/0/5/130588583/lijomufurogolotip.pdf
    • http://enjoni-cafe.com/uploads/1/3/0/4/130489437/7623754.pdf
    • http://webdisk.benro-racing.com/uploads/1/3/0/8/130814234/eb654af.pdf
    • http://whitebeamphotography.co.uk/uploads/1/3/0/6/130621361/4c581ec267.pdf
    • http://plymouthjunction.com/uploads/1/3/0/8/130813592/6740195.pdf
    • http://swellcreatives.com/uploads/1/3/0/5/130551049/bimedewogu_duranet.pdf
    • http://beshearsconsulting.com/uploads/1/3/0/5/130540928/lalipozesa.pdf
    • http://thetasteofsaba.com/uploads/1/3/0/6/130621371/5145320.pdf
    • http://nizhonipropertiesllc.com/uploads/1/3/0/7/130776605/ridubelusukexijewonu.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_off0000c468.bin
8277fc73947d8d799d82c754b44e7bd1a0dc5cb877def173b5ab65bbae785a5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC468 7868 bytes

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