Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8505b106b1f3462…

MALICIOUS

PDF

49.3 KB Created: 2020-03-29 14:17:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 4f53c6cd2cdfee0d87708afa3ae7ff06 SHA-1: 0ba30483c9c82e5291af45dedfa4f5a9ba81e82b SHA-256: d8505b106b1f34625e5653042b3655cd00af54bfeca5208778a8975b6d20d3d6
96 Risk Score

Malware Insights

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

This PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary purpose appears to be directing users to a large collection of unrelated websites, likely for SEO manipulation or to serve as a landing page for further malicious activity. No scripts were extracted, and the document body content is largely unreadable binary data, making it difficult to ascertain a more specific attack pattern beyond link distribution.

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://gomriz.com/uploads/1/3/0/5/130545327/130545327.html#heat+and+bond+ultra+hold+directions PDF link annotation
    • http://greatlakesobjectivists.com/uploads/1/3/0/8/130873732/fiwovu.pdfIn PDF document text
    • http://dbdaccounting.com/uploads/1/3/0/6/130640104/1de30f540.pdfIn PDF document text
    • http://thepropertyrp.com/uploads/1/3/0/5/130539309/7369768.pdfIn PDF document text
    • http://healthscoot.com/uploads/1/3/0/5/130546354/9714395.pdfIn PDF document text
    • http://escueladedanzaybaile.com/uploads/1/3/0/8/130813846/301497c.pdfIn PDF document text
    • http://jclairechung.com/uploads/1/3/0/3/130313284/dokowizur.pdfIn PDF document text
    • http://2wisewomen.net/uploads/1/3/0/6/130603684/7766dcd89271b08.pdfIn PDF document text
    • http://hostmaster.ingledewpianos.co.uk/uploads/1/3/0/9/130969209/gopexowilevefiwop.pdfIn PDF document text
    • http://fitisator.com/uploads/1/3/0/2/130271214/bidewuta.pdfIn PDF document text
    • http://matrenover.com/uploads/1/3/0/6/130604888/jixuxes.pdfIn PDF document text
    • http://oakcitymade.com/uploads/1/3/0/2/130272364/wamufumafu_moxali_kugesiweta_niwarufutakifo.pdfIn PDF document text
    • http://bepita.ch/uploads/1/3/0/5/130550992/gesutowavixodo_gegazapejajoxa_kujezidikab_vejaw.pdfIn PDF document text
    • http://zhengzeyu.com/uploads/1/3/0/2/130291485/8413583.pdfIn PDF document text
    • http://bucephalustactical.com/uploads/1/3/0/5/130590717/dubemep-bosogasub-wuxifonizidope-zozudetijepusa.pdfIn PDF document text
    • http://howwemove.com/uploads/1/3/0/5/130588813/penusogup.pdfIn PDF document text
    • http://ivacreaciones.com/uploads/1/3/0/5/130543488/dafofasopezosegeteve.pdfIn PDF document text
    • http://perfectbeardz.com/uploads/1/3/0/7/130740351/tenut.pdfIn PDF document text
    • http://cambriscottage.com/uploads/1/3/0/7/130739945/0c7c226.pdfIn PDF document text
    • http://foreverdreamflorida.com/uploads/1/3/0/6/130621002/a8372e5.pdfIn PDF document text
    • http://roark-redwood.com/uploads/1/3/0/7/130739474/gunuranedogip.pdfIn PDF document text
    • http://freightpro.express/uploads/1/3/0/8/130813866/zivurejafufapamim.pdfIn PDF document text
    • http://cyrustheiranian.com/uploads/1/3/0/7/130739499/guvotagevulelozu.pdfIn PDF document text
    • http://beautyinyouhairsupply.com/uploads/1/3/0/3/130379199/2505977.pdfIn PDF document text
    • http://authorgenahatch.com/uploads/1/3/0/8/130813913/6562985.pdfIn PDF document text
    • http://obituar.org/uploads/1/3/0/3/130379635/jejutelekugipu-muduxavubalil-vatezodupapuj.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDB 8928 bytes
SHA-256: 55ddadc85096ad4f2c5f45be5a17573d6bf9d5c178cd6cab589f491843b74b9a
font_01_sfnt_off00009f7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F7B 16224 bytes
SHA-256: da097a8c459adbfdf1b1d97412e41569b305acf822c6e113ff3e46e38a168572

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