Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fa39783d077c2b9…

MALICIOUS

PDF

33.8 KB Created: 2020-06-05 02:56:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 7aeebf8b2540281e042753f6e1b1d8f5 SHA-1: ebcf3d098b5bce04a695f6d353b9bbd29eda4d50 SHA-256: 9fa39783d077c2b9c4fae574e2332bb447e9382ec178768b25328bf56509d34c
96 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The document body itself contains metadata and a reference to the song 'We've Got the Power Lyrics', which appears to be a lure. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://nobordersadventure.voyagerwebsites.com/uploads/1/3/0/2/130289229/130289229.html#we%2527+ve+got+the+power+lyrics PDF link annotation
    • http://08bbf7.com/uploads/1/3/1/6/131606234/gexonuxibagoson_jilupuruzud.pdfIn PDF document text
    • http://nikola-dusana.de/uploads/1/3/1/4/131438024/temusatetide_jeberuxevoze_megow_fovinuzexi.pdfIn PDF document text
    • http://swiss-storen.com/uploads/1/3/0/5/130588639/zafetaguxuruw.pdfIn PDF document text
    • http://macholster.com/uploads/1/3/0/7/130739488/d78fb231f1063.pdfIn PDF document text
    • http://matthewdempsey.ca/uploads/1/3/1/4/131437850/335409.pdfIn PDF document text
    • http://scubadiveseychelles.com/uploads/1/3/0/7/130775398/48ec252f8b.pdfIn PDF document text
    • http://mariavega.ca/uploads/1/3/0/3/130313054/weditirofi-sarozeka-bojidezitule.pdfIn PDF document text
    • http://mail.maldonarchive.com/uploads/1/3/0/2/130288854/vesukulutarewu.pdfIn PDF document text
    • http://meinpuls.de/uploads/1/3/0/9/130969090/4469469.pdfIn PDF document text
    • http://tessamunrojewelry.com/uploads/1/3/0/6/130603892/5475807.pdfIn PDF document text
    • http://life-in-art.com/uploads/1/3/0/6/130604279/5082714.pdfIn PDF document text
    • http://nobordersadventure.voyagerwebsites.com/uploads/1/3/0/2/130289229/terms.htmlIn PDF document text
    • http://nobordersadventure.voyagerwebsites.com/uploads/1/3/0/2/130289229/dmca.htmlIn PDF document text
    • http://nobordersadventure.voyagerwebsites.com/uploads/1/3/0/2/130289229/policy.htmlIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://mawumobu.files.wordpress.com/2020/06/vadotatubufinireguwugu.pdfIn PDF document text
    • https://meboraxi.files.wordpress.com/2020/06/nomeboxixekabibel.pdfIn PDF document text
    • https://ditilepikap.files.wordpress.com/2020/06/64535136874.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5840 10208 bytes
SHA-256: dbb3ec56cb5c60d8c059f5bcd33c41cc58f90d73c0cb1c98903e97b4b2492bc7

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