Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e7ba49f5ae43e65…

MALICIOUS

PDF

36.7 KB Created: 2020-06-20 23:04:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 73ea2a4d12baed001a631bd2b6beee07 SHA-1: b68c14ea27d409005cf343cd6cae493cdfe2f16b SHA-256: 2e7ba49f5ae43e65be947b90b9ff17afe9dc7d1ec7a1a185ce54d3786d79c1d5
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, many of which are numerically or generically named, suggesting a link farm or SEO poisoning tactic. The document body, though partially corrupted, indicates a lure related to a "Potscrubber dishwasher manual" to disguise the malicious intent. The primary goal appears to be directing users to a network of suspicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://virtualoffice.cocreativ.com/uploads/1/3/1/3/131380998/131380998.html#potscrubber+dishwasher+manual PDF link annotation
    • http://zoeshotelsecrets.com/uploads/1/3/0/3/130312950/6809381.pdfIn PDF document text
    • http://newleafereit.com/uploads/1/3/0/6/130639839/lobuxoludogal.pdfIn PDF document text
    • http://reliantservices.info/uploads/1/3/1/4/131453087/50967bd7cd3c.pdfIn PDF document text
    • http://minimaldatayang.com/uploads/1/3/1/0/131070204/7047354.pdfIn PDF document text
    • http://katrinacjohnsonphd.com/uploads/1/3/1/6/131606940/nobegalagiripazevepu.pdfIn PDF document text
    • http://blessedbuildingconsultants.com/uploads/1/3/1/4/131482963/7574c41c.pdfIn PDF document text
    • http://74-123-79-170.mgwnet.com/uploads/1/3/1/6/131606065/kunibakogefasizori.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn 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_off00004ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EE8 5292 bytes
SHA-256: 0867a217c8b12fda929afcf276aa0f84eaa3204ca4e5c89b8a161ea5dd4de6f3
font_01_sfnt_off000060c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C2 11200 bytes
SHA-256: 9704a627e55003188e45e15ef0b5c3b5ccc417612ed6cd975761c5d80366290d

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