Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c2ab04650684253…

MALICIOUS

PDF

47.9 KB Created: 2020-04-07 10:10:07 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 03c1064fda3613c909551437ae411a5b SHA-1: 082ffa0dfcce89c410c00fb033040de610184e98 SHA-256: 0c2ab04650684253ed5304e1ca35a059f0d1ab4e7e69ceaabb790cafe66c2619
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

This PDF document contains a large number of external links to various domains, identified by the PDF_SEO_LINK_FARM heuristic. The primary purpose appears to be directing users to a vast collection of PDF files, potentially for SEO manipulation or to serve as a distribution point for further malicious content. No scripts were extracted, but the sheer volume of outbound links suggests a malicious intent to redirect the user to potentially harmful resources.

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://xciteeducation.com/uploads/1/3/1/4/131453855/131453855.html#beneficios+ondas+rusas+en+gluteos
    • http://livechanger.com/uploads/1/3/0/9/130969655/puxer.pdf
    • http://sham.band/uploads/1/3/0/5/130588547/murapa.pdf
    • http://roofcleaningpp.com/uploads/1/3/0/3/130323527/3948516.pdf
    • http://sandiegoalopecians.com/uploads/1/3/0/4/130489564/847432.pdf
    • http://lifeisfornowyes.org/uploads/1/3/0/7/130776590/bakagiwij.pdf
    • http://termdirect.com/uploads/1/3/1/4/131408581/pitumu-zadekewulip-zilafejaba-xojoras.pdf
    • http://uppertownshipnjcom.net/uploads/1/3/0/2/130287872/firajekirajuxozufu.pdf
    • http://donaldvega.com/uploads/1/3/0/7/130776385/1669593.pdf
    • http://angyalrealtyadvisors.com/uploads/1/3/1/0/131070171/139908.pdf
    • http://chantellscloset.com/uploads/1/3/0/3/130313541/d24d55a77de9.pdf
    • http://kogarashiart.com/uploads/1/3/0/7/130775103/tixezapopevedof.pdf
    • http://ahblinghaven.store/uploads/1/3/0/5/130588928/wexiputadejejeb_dugised_retexix_vopivezinawu.pdf
    • http://locasweets.com/uploads/1/3/1/0/131070367/rixav.pdf
    • http://anoatt.org/uploads/1/3/0/6/130604651/rowapelabuvelipi.pdf
    • http://psychicgift.org/uploads/1/3/1/4/131453512/tikejebazenotowum.pdf
    • 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ff0.bin
a2f3cf1530cb7a35cff1a2015ea8cd7fdf9ed094ea14a2f732ad5303cc5644a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF0 9112 bytes

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