Malicious PDF — malware analysis report

Static analysis result for SHA-256 977d4d6cd5ced545…

MALICIOUS

PDF

42.9 KB Created: 2020-03-21 18:30:32 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 00065d75d52646cdf6d0a9e4ed331cbc SHA-1: 4a92af3128ab3390b70e206355a0f8b012ff0386 SHA-256: 977d4d6cd5ced545083a8ca7e53d78812eea10499896b66974e3d98c6985aa24
92 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a link farm, with numerous external URLs pointing to other PDF files hosted on various domains. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a mass of external links. The document body contains garbled text and embedded URLs, suggesting it's not intended for direct user consumption but rather as a vehicle to redirect users to other potentially malicious sites.

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://iglootw.com/uploads/1/3/0/7/130775927/130775927.html#six+sigma+green+belt+training+delhi+delhi
    • http://benkiashaninka.com/uploads/1/3/0/6/130639567/ddd28f8b5dba2e.pdf
    • http://tinaandtylerbell.org/uploads/1/3/0/6/130604368/zidunul-menazijub-kaxemenas-tinijo.pdf
    • http://www.meiravadesigns.com/uploads/1/3/0/9/130968967/5157063.pdf
    • http://theatre-at-large.com/uploads/1/3/0/5/130551967/duxusaxevamepenena.pdf
    • http://www.edroidnews.com/uploads/1/3/0/7/130776381/zolifilir_rudof_xidodox_pidikavituledi.pdf
    • http://uptown-kids.com/uploads/1/3/0/4/130435888/74d6a056f3d1.pdf
    • http://cynicalandsweet.com/uploads/1/3/0/6/130603860/relavij.pdf
    • http://www.coastalcaninetraining.com/uploads/1/3/0/5/130547846/pefuzawaxojanaxowo.pdf
    • http://beachtobayprofessionals.com/uploads/1/3/0/9/130969166/5702713.pdf
    • http://katiecoxandcompany.com/uploads/1/3/0/6/130604803/divapegenapoliwem.pdf
    • http://www.myenlighteningexperience.com/uploads/1/3/0/6/130604562/af039.pdf
    • http://juliecorbeilrhn.com/uploads/1/3/0/2/130287529/zaputumeni_vitabotaw_maxapen.pdf
    • http://stevetaboga.com/uploads/1/3/0/4/130488199/1595386.pdf
    • http://crazyhorsemontana.com/uploads/1/3/0/8/130874617/910675.pdf
    • http://kwanzaaklaus.net/uploads/1/3/0/5/130588388/falitekep.pdf
    • http://hostmaster.rivermansioncelebrations.co.uk/uploads/1/3/0/2/130289481/rujato.pdf
    • http://ohanaplumbing.com/uploads/1/3/0/5/130588150/d254c5d15.pdf
    • http://countrystrongppllc.com/uploads/1/3/0/3/130323967/46580466504705.pdf
    • http://tipsymermaidshop.com/uploads/1/3/0/5/130588962/gululo.pdf
    • http://www.ghaseg.com/uploads/1/3/0/6/130604202/e1ec74543bad7.pdf
    • http://righttodreamusa.com/uploads/1/3/1/0/131070737/6062523.pdf
    • http://adcleaning.services/uploads/1/3/0/2/130274279/0888b7d73.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_off00007c9b.bin
55cbf011c6eb9f9d0a1ad3c1d3d32c7fab2fb0d479a8de8dc44210009e86b705		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9B 8184 bytes

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