Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df4735097408da7…

MALICIOUS

PDF

49.9 KB Created: 2020-10-29 04:07:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: c61ece5677ac562ddf19beb434c0d836 SHA-1: ec9eaff390cde4d0a53b2eafacd727579974f101 SHA-256: 6df4735097408da70484222d559a46cd1f5f73c649e62c08d15a23a9ca093bcc
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, which is designed to lead users to potentially harmful content. The document body, though heavily obfuscated, contains a URL that matches the one identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. This suggests the primary purpose of the PDF is to facilitate the download of malicious content, likely through a phishing or scam lure.

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=options+as+a+strategic+investment+5th+edition+free+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4381082/normal_5f932f449caf2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368949/normal_5f8ee94e1c1ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368747/normal_5f8c72200b4af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419654/normal_5f9a0a027194c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366366/normal_5f8739127276b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375197/normal_5f90f88c98d50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369915/normal_5f8fcb07c84bf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zirojopemup/bumosidavoka.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/bazorumubolekewobibolot.pdfIn PDF document text
    • https://s3.amazonaws.com/juzinaramip/vesirabiwulor.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/kopuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5362/0644/files/royal_highlands_leesburg_fl_homes_for_sale_by_owner.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27c6d684-9a26-40d4-9883-9b0f6fa966bf/gapuzumarakozomewazo.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/b_m_sharma_physics_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/benim_hocam_tyt_fizik_ders_notlar.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/architectural_design_brief_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/3826/8318/files/adverbs_worksheet_grade_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4661240c-2094-4229-82ca-4ac2aad1c035/day_2_8th_grade_science_staar_review_answers.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_off000070aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70AA 5660 bytes
SHA-256: 6d2fa335e9c03ae3f13e52a26371f557133dd3c13ab2c5510ca2cb0d16c8fceb
font_01_sfnt_off000083d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D1 11688 bytes
SHA-256: b367d8002c69ae09f39f693b555975b09d72c1ede7028545b1acad1401f0e747
font_02_sfnt_off0000ab95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB95 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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