Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe326d8155e55ac6…

MALICIOUS

PDF

79.7 KB Created: 2021-05-22 00:57:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 098ae3b83ae16d4a4f4253b4087ac3a2 SHA-1: 11bd3cc5d0e9065b88e53c844774d4ac470408a0 SHA-256: fe326d8155e55ac60717492e1f21611a6d1434d693372a580441ebb7efeaad61
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://jumiwimov.ru/strik?utm_term=southwest+carry+on+baggage+guidelines PDF link annotation
    • https://jezinuva.weebly.com/uploads/1/3/4/8/134869759/wosuz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483839/normal_6044d6b05eedd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381318/normal_605678945b61c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366660/normal_6025ca9052358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404285/normal_604824eb80001.pdfIn PDF document text
    • https://mudulavodeg.weebly.com/uploads/1/3/1/0/131070753/dac07b6f5cddef3.pdfIn PDF document text
    • https://jodulimije.weebly.com/uploads/1/3/4/7/134732884/8374451.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384310/normal_6031d4160e50d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499984/normal_5fcb156da9a04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424330/normal_603ea8f3154d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417986/normal_6015a2d408f11.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0f6d857-0a5b-4527-84d9-9bfb77777a20/kububodefejolivomezol.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/60205485992.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e6ca204-1243-46f4-9e74-5302fb832846/where_to_donate_soft_toys_melbourne.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a8bcfd4-4656-4367-817e-d615ef5e12a6/letetagupokekaxuwuwara.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/61309430193.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/evil_dead_all_parts_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/i_love_you_more_than_anything_meaning_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/saint_seiya_awakening_summon_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/roxawo/fapetonevilisalo.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE7 5636 bytes
SHA-256: b260796ae99cacbb569d60f83b60ff5a4c88e81821ce4c9b28955ea0df4a9bb2
font_01_sfnt_off0001021d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1021D 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off00010aaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AAA 10684 bytes
SHA-256: d96bcedaa1df8699b2b7966c555d3724b26066b8bdf749d5407804f4f028c98b

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