Malicious PDF — malware analysis report

Static analysis result for SHA-256 461bac7e1ec0bf0a…

MALICIOUS

PDF

43.1 KB Created: 2020-11-01 14:02:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 27f4c251d5d2734f74d984c44592fa58 SHA-1: b0952b9ddf1357a22a70ab9512569e9c0a742980 SHA-256: 461bac7e1ec0bf0a72e1c6f5488629c163bc28cb3a212ecea56a37bf7fee2dbe
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, https://ttraff.club/123?keyword=eberron+pathfinder+conversion+warforged, is the primary indicator of malicious intent. While no scripts were extracted, the presence of a malicious link strongly suggests a phishing or malware delivery attempt, aligning with the Spearphishing Attachment technique.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://ttraff.club/123?keyword=eberron+pathfinder+conversion+warforged In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5f8711651da4c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377925/normal_5f912a4be39d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366319/normal_5f871318509f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381738/normal_5f95402f61006.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383322/normal_5f9b8314bfece.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367005/normal_5f873190445e1.pdfIn PDF document text
    • https://xogexemufak.weebly.com/uploads/1/3/1/4/131437987/12a035ab08798d1.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/dolopitubolagu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7822/4534/files/bmw_4_series_convertible_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/picasa_3_download.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/chronicle_of_a_death_foretold_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/luron.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/business_writing_skills_course.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_off0000682d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x682D 5636 bytes
SHA-256: b6a01f481775aa550faa62401d74c70ff43543f2085159e954514d0e9c73c1f6
font_01_sfnt_off00007b6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B6A 10660 bytes
SHA-256: 01f918a6e3b8bc3d9ae775d9d5448829676224f098ac4050ca1476b43c4c0a27

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