Malicious PDF — malware analysis report

Static analysis result for SHA-256 69fcee0568ab7348…

MALICIOUS

PDF

61.2 KB Created: 2020-10-29 06:50:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 4c4f7a0c7d48ee748314be914667318e SHA-1: b04fc92087cad0b4ca83f5b08d89aea7281e8a7e SHA-256: 69fcee0568ab7348389ce30bdedb482926aba4396223a67f6ef599a9ea3089f0
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to known malicious redirectors or link farms designed to host further malicious content. The primary redirector URL is https://ggtraff.ru/aws?keyword=pirates+of+the+caribbean+elizabeth+father, which is associated with malicious activity. This suggests the document is part of a phishing or content-farming operation to drive traffic to malicious sites.

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=pirates+of+the+caribbean+elizabeth+father In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365601/normal_5f927cedd63dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420597/normal_5f970c621f234.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403688/normal_5f99f51c72388.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369163/normal_5f8dfc90e0694.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379371/normal_5f8acea99b153.pdfIn PDF document text
    • https://fevuxutub.weebly.com/uploads/1/3/4/1/134131759/6569635.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366029/normal_5f8927c028598.pdfIn PDF document text
    • https://jopalezaleloloj.weebly.com/uploads/1/3/1/3/131380469/dopidijif_vaweg_femonuko_bomexafaz.pdfIn PDF document text
    • https://nakumupapetiz.weebly.com/uploads/1/3/2/7/132741615/a09aac2f53ce0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412195/normal_5f94931e36d11.pdfIn PDF document text
    • https://lumozilupive.weebly.com/uploads/1/3/4/3/134336046/672392e228f6786.pdfIn PDF document text
    • https://finazodaxuvoj.weebly.com/uploads/1/3/2/6/132682535/aebca45c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/food_to_eat_on_keto_diet.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/joint_of_two_uniform_distribution.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/anemia_hemolitik_adalah.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/best_ngo_annual_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/35203654840.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/biviwez.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_off0000b247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB247 5160 bytes
SHA-256: 4cf948aea8fdae41dfd8833a47f8ed049ec206e2a47c83ebab06312abc57f178
font_01_sfnt_off0000c3d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3D5 10724 bytes
SHA-256: 014084963776bb5f4102403a4916df8615ee9fcb1feb13b69e017f06f744638d

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