Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee1428aeed838bca…

MALICIOUS

PDF

41.3 KB Created: 2020-03-29 14:31:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 587b3fdb95e4c70d80e25c6639552613 SHA-1: 5c032351509cf1db06e7e06f6cb15e34c9b0e997 SHA-256: ee1428aeed838bca9c044a547b8a3e2c6f1091a61cbc5b7c2b91633989885f9b
96 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links pointing to various domains, a technique often used for SEO spam or to distribute further malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a mass of external PDF links. The primary URL identified is http://lamee-dark-version3-de.devsite-1.com/uploads/1/3/0/2/130287283/130287283.html#sistemas+de+numeraci%C3%B3n+posicional+y+no+posicional, which is part of this link farm.

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://lamee-dark-version3-de.devsite-1.com/uploads/1/3/0/2/130287283/130287283.html#sistemas+de+numeraci%C3%B3n+posicional+y+no+posicional PDF link annotation
    • http://bayareacustodycoach.com/uploads/1/3/0/5/130551081/bizuvejozigonatir.pdfIn PDF document text
    • http://pesoclinic.com/uploads/1/3/0/6/130621111/zolijoruboj.pdfIn PDF document text
    • http://goplacesseefaces.org/uploads/1/3/0/5/130590353/f2860de212e0.pdfIn PDF document text
    • http://gregoryenchants.com/uploads/1/3/0/5/130545365/875d1e3904.pdfIn PDF document text
    • http://consigninstyle.com/uploads/1/3/0/7/130739876/gelamiloxawakef.pdfIn PDF document text
    • http://theffascrapbook.org/uploads/1/3/0/7/130775388/pubowurexi.pdfIn PDF document text
    • http://juniperroad.info/uploads/1/3/0/6/130620878/fb2c8c7a704f8.pdfIn PDF document text
    • http://travels-diamond92.com/uploads/1/3/0/3/130323301/ganabawupereme.pdfIn PDF document text
    • http://wiregrassranchfoundation.com/uploads/1/3/0/9/130969336/5074172.pdfIn PDF document text
    • http://rosemaryjensen.com/uploads/1/3/0/2/130289669/ferujuriwixaz.pdfIn PDF document text
    • http://landernv.net/uploads/1/3/0/7/130739529/6cc9cb5a11.pdfIn PDF document text
    • http://phylexgreen.com/uploads/1/3/0/2/130291463/fitotipanowar.pdfIn PDF document text
    • http://sousousakuragi.com/uploads/1/3/0/7/130738870/9905084.pdfIn PDF document text
    • http://thewandereryoga.com/uploads/1/3/0/8/130873880/3934074.pdfIn PDF document text
    • http://bobhritz.com/uploads/1/3/0/5/130539019/b81939d5.pdfIn PDF document text
    • http://cynthiagarner.com/uploads/1/3/0/5/130589100/fadupugife-burifarilikase-dewuzoles.pdfIn PDF document text
    • http://grossmanfamily.org/uploads/1/3/0/6/130639701/nakigobonefezoj_luzasugid_toguvup.pdfIn PDF document text
    • http://feefifaux.net/uploads/1/3/0/7/130738778/bexejozixipi.pdfIn PDF document text
    • http://signcurvestudios.com/uploads/1/3/0/6/130620804/xapoxuzide_kesulavi_kikulafupulevo_lupipedafafax.pdfIn PDF document text
    • http://charityforcambodia.org/uploads/1/3/0/7/130740393/futiworotajejigu.pdfIn PDF document text
    • http://chuckanutbaycottage.com/uploads/1/3/0/7/130738883/6c934b184c991.pdfIn PDF document text
    • http://hostmaster.earthcarefarm.com/uploads/1/3/0/7/130776174/f8cad5fbbaea66.pdfIn PDF document text
    • http://savdistilleryalehouse.com/uploads/1/3/0/9/130969772/5298609.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

Related samples 7

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_off000076a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A0 8328 bytes
SHA-256: 6ed9b81e33cf49a505cb1220d15efafbbe461c93651524e1b1d386d6e051b0cb

Open this report in the interactive analyzer, or submit your own file for analysis.