Malicious PDF — malware analysis report

Static analysis result for SHA-256 06529b34dc055a62…

MALICIOUS

PDF

49.4 KB Created: 2020-10-27 20:24:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 31868a21c3c15ac71d55f2a91f83bbf1 SHA-1: 3611354b2c6e21f226764cef118f88f93dfb3cff SHA-256: 06529b34dc055a628c1c7a3c5332618ce53fb4539fd8fc243d742917d9df5d51
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to 'gettraff.ru', which is flagged as malicious redirector infrastructure. This URL is presented in the context of 'rogue trader classes', suggesting a phishing or scam attempt. The document also hosts a large number of other PDF files, likely as part of a link farm, further indicating malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/strik?keyword=rogue+trader+classes In PDF document text
    • https://xawuwotogot.weebly.com/uploads/1/3/2/6/132695388/a7516413002985d.pdfIn PDF document text
    • https://sizukejagu.weebly.com/uploads/1/3/2/6/132681884/todazazadin-xuwakube-numifusotip.pdfIn PDF document text
    • https://babinekisifuve.weebly.com/uploads/1/3/2/6/132696104/numil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386333/normal_5f914c22e7042.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383475/normal_5f96b7f416409.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372086/normal_5f93d5fc85935.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383704/normal_5f8faf416ae32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382187/normal_5f92563ae6ee5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411229/normal_5f9812e62bb50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380881/normal_5f903aa3ebe93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379837/normal_5f8d5bcf7eecf.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/4b0d1df7-68fd-4938-98d6-56cfef5490a5/sajebokuzalakovebedur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf6b14c9-ca5a-4d4d-8e82-a24582b6ac5e/58510716807.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4c691e8-de63-4a9f-b2a7-b927b15fb236/budakatitizowusunev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef0d7b2f-373a-4d24-8150-9a1d766088a6/directv_starkville_channel_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3000/2336/files/4168286055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/0815/7590/files/real_gangster_crime_mod_apk_latest_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7605/1635/files/fibokurigeretuwe.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8240 5112 bytes
SHA-256: d361045bccae8b1e697f25b17d149bcbdcfae452f7b9b3516ae5026aed2b595d
font_01_sfnt_off000093b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93B7 10640 bytes
SHA-256: a3ad13e9a69c6778409cd1571cbac0d1afb79c51fe936cf3b241d11e7ff610ff

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