Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c2c9c2edce69fd…

MALICIOUS

PDF

38.6 KB Created: 2020-11-01 21:59:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 303e8d3c2a6c9acf3ab12d7e390d55d9 SHA-1: 9620433ce5b222c74705466a3454c0bb349cfed7 SHA-256: 49c2c9c2edce69fdaba9fdfa13fbccd6ccc1f6f034e7eaae8c11d16f3860f87d
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains numerous links to external websites, including a known malicious redirector at 'https://ggtraff.ru/aws?keyword=milk+and+honey+free+online+pdf'. The presence of a link farm and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. The document body, though heavily obfuscated, also contains URLs suggesting a lure for free online PDFs.

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://ggtraff.ru/aws?keyword=milk+and+honey+free+online+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4409630/normal_5f96c3aa0a40c.pdfIn PDF document text
    • https://xumuxurubaxuk.weebly.com/uploads/1/3/4/5/134501003/zubetel_zukinafezuneza_masobevavunil.pdfIn PDF document text
    • https://tedumuwoke.weebly.com/uploads/1/3/1/3/131397970/153577.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382187/normal_5f8c7bff74ac8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368219/normal_5f9e76e28c606.pdfIn PDF document text
    • https://gurigibafex.weebly.com/uploads/1/3/0/7/130739571/dbb6ae8863eb5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369183/normal_5f88f27249945.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/d739448ed3.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/1/0485/2786/8059/files/the_journey_by_mary_oliver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7903/5808/files/97804578744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2356/7512/files/dozilolujovatudevasizuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/4065/9385/files/piwakenowusajamaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6425/2821/files/writing_for_business_and_the_professions_rutgers_syllabus.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_off000057e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57E2 5120 bytes
SHA-256: 69d193c74d494fa2315b51c1172e2bab95edea409b34e44ea6a1eb3d3782b821
font_01_sfnt_off00006960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6960 10452 bytes
SHA-256: 7cd3826a3f83630795c27a68ef13ab4fcd577ef80aff09dda2b20f468a365510

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