Malicious PDF — malware analysis report

Static analysis result for SHA-256 e85485337b037404…

MALICIOUS

PDF

48.2 KB Created: 2020-03-26 09:46:42 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-07
MD5: 4d6beb99fc917876b403c2d5771fe6ba SHA-1: 44200bacfac85bb484f97696a120bf0da4465c57 SHA-256: e85485337b0374048d737c24265864748fb99176d8e7588cd09e53d27ffc1f50
96 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified as a 'PDF SEO LINK FARM' heuristic. The document body, though heavily obfuscated, contains references to URLs such as 'http://maeganprovan.com/uploads/1/3/0/7/130740128/130740128.html#the+shock+doctrine+full+documentary' and 'http://rosebudtel.info/uploads/1/3/0/7/130776452/57d18bb9b6de.pdf'. This suggests the primary purpose is to redirect users to a multitude of other sites, potentially for SEO manipulation or to host further malicious content.

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://maeganprovan.com/uploads/1/3/0/7/130740128/130740128.html#the+shock+doctrine+full+documentary PDF link annotation
    • http://rosebudtel.info/uploads/1/3/0/7/130776452/57d18bb9b6de.pdfIn PDF document text
    • http://5pointauto.com/uploads/1/3/0/5/130544494/248d2.pdfIn PDF document text
    • http://joemathewson.net/uploads/1/3/0/3/130323286/b750cfe33512.pdfIn PDF document text
    • http://zoom-off.com/uploads/1/3/0/7/130740174/lezotul-bezelupumo-biperezepepaj.pdfIn PDF document text
    • http://greatfallsdj.com/uploads/1/3/0/7/130775411/7528867.pdfIn PDF document text
    • http://sevier.me/uploads/1/3/0/8/130814735/pujape_dazeba.pdfIn PDF document text
    • http://jefkordas.com/uploads/1/3/0/4/130483219/1078618.pdfIn PDF document text
    • http://cruzinrenovationsllc.com/uploads/1/3/0/4/130483429/1141c68376da8b9.pdfIn PDF document text
    • http://sabpermaculturegroup.com/uploads/1/3/0/6/130621306/turuvo-zibal-pebeminakukoxi.pdfIn PDF document text
    • http://nationalpostcards.ie/uploads/1/3/0/7/130739956/lopefosavat.pdfIn PDF document text
    • http://mingalarfoods.com/uploads/1/3/0/6/130640022/7c6938eb49cace.pdfIn PDF document text
    • http://avataraangsex.porncolection.com/uploads/1/3/0/6/130620745/7947163.pdfIn PDF document text
    • http://www.flueandhearthnotes.com/uploads/1/3/0/7/130738797/kakekodafe_sevisegox.pdfIn PDF document text
    • http://ruthhowardphotography.com/uploads/1/3/0/8/130873872/4239845.pdfIn PDF document text
    • http://projectdreamport.net/uploads/1/3/0/5/130552034/54d5bb9dfa6827f.pdfIn PDF document text
    • http://dcccorp.net/uploads/1/3/0/9/130969844/9680060.pdfIn PDF document text
    • http://littlemillcreek.net/uploads/1/3/0/6/130640142/jimikapub.pdfIn PDF document text
    • http://www.jogrubb.com/uploads/1/3/0/7/130738765/silomibosuve.pdfIn PDF document text
    • http://thebedrockinitiative.org/uploads/1/3/0/5/130550665/mutoz-nizolujozom-futexeg.pdfIn PDF document text
    • http://ryanjmcvay.com/uploads/1/3/0/6/130604162/1854856.pdfIn PDF document text
    • http://www.vecriskmanagement.com/uploads/1/3/0/2/130289209/8544834.pdfIn PDF document text
    • http://www.theentitydoctor.com/uploads/1/3/0/2/130287533/latotogozirud.pdfIn PDF document text
    • http://d.reserveren.escaperoomleiden.nl/uploads/1/3/0/9/130969700/5828295.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
🗂 Part of campaign: biztriage.com 8 samples

Related samples 2

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_off0000936b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x936B 8104 bytes
SHA-256: 965ad687bbd2cc0b032888fd7db1d1bf395aea7e81df0b55628d8d4e88da0bbf

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