Malicious PDF — malware analysis report

Static analysis result for SHA-256 6145a017f893f0ae…

MALICIOUS

PDF

120.0 KB Created: 2020-04-04 11:24:28 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6524b5d4bf536babd541e908d0328e56 SHA-1: fd80568cbe0f58e9330e05fc6cdc63717b584606 SHA-256: 6145a017f893f0aee1bd7ecd574d4c6c1f466e7d5ea64e1786c6df14b1de81cd
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a large number of external links, identified as a link farm, likely for SEO manipulation or to host malicious content. The document body text, though partially corrupted, suggests a lure related to veterinary medicine. No scripts were extracted, but the presence of numerous external links indicates a high likelihood of malicious intent, possibly leading to further compromise.

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://unmannedoilfield.ca/uploads/1/3/0/4/130488666/130488666.html#tipos+de+sutura+medicina+veterinaria
    • http://theoxfordhouseofbeauty.com/uploads/1/3/0/7/130738513/5e41a509a80e82.pdf
    • http://mobile-massage-sydney.com/uploads/1/3/0/5/130550985/2e80713a.pdf
    • http://panguitchvalleyballoonrally.com/uploads/1/3/0/6/130605173/fd027277.pdf
    • http://bakkershof.com/uploads/1/3/0/7/130740165/xorozixemuruzafekod.pdf
    • http://rtcconsulting.net/uploads/1/3/0/5/130551597/degosadatesuja_zukuzamubew_mofetewibadexom_tetosifawegofur.pdf
    • http://8020shop.com/uploads/1/3/0/5/130543261/53c7d.pdf
    • http://kellycozzone.com/uploads/1/3/0/7/130740166/todososam.pdf
    • http://hurstjhchoir.com/uploads/1/3/0/5/130551222/1051610.pdf
    • http://mysteelmagnolias.com/uploads/1/3/0/4/130488063/rigowugef.pdf
    • http://astray.xyz/uploads/1/3/0/5/130539465/vigawodigoxe.pdf
    • http://nevadachallenger.net/uploads/1/3/1/4/131438011/tuzafabakowifun.pdf
    • http://rossiternewengland.com/uploads/1/3/0/6/130640182/fuzepuvuxe-nonem-fepazefudivefi-falakefefuta.pdf
    • http://engpossible.com/uploads/1/3/0/2/130274378/cc5500f7d.pdf
    • http://fontawesome.iohttp://fontawesome.io/license/
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a2fd.bin
246d7d14cde8c6e582b7663b9781afc3479d0be1ecf71d580aa2c85c1b42c905		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A2FD 2084 bytes
font_01_sfnt_off0001ac60.bin
1efae22cd4f7442978a8815426230ac5b833b766bd11b316818ed3c9ef992f21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AC60 10904 bytes

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