Malicious PDF — malware analysis report

Static analysis result for SHA-256 024c063dc08e3d32…

MALICIOUS

PDF

60.2 KB Created: 2020-11-04 08:39:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 07115898065095332a02a7a42550a7fe SHA-1: b7acae84530018ec05aebcd0fd7a5acaf23c4b78 SHA-256: 024c063dc08e3d3223cbd3a60a8fbcddce2fb239aa5abbf6fbbd8888c76ec5b6
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links and text that direct users to external URLs, specifically a redirector at 'ggtraff.ru'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this URL leads to malicious infrastructure. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of outbound links, suggesting a spam or phishing campaign. No scripts were extracted, but the overall structure and link behavior point to a malicious document designed to redirect users to potentially harmful content.

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=porter+cable+scroll+saw+16 In PDF document text
    • https://bazanepuxakelu.weebly.com/uploads/1/3/4/3/134346533/nilirazimotufu.pdfIn PDF document text
    • https://mesedegusi.weebly.com/uploads/1/3/4/6/134600151/1796830.pdfIn PDF document text
    • https://tedumuwoke.weebly.com/uploads/1/3/1/3/131397970/wejidafisa.pdfIn PDF document text
    • https://wejakoguxi.weebly.com/uploads/1/3/4/3/134324676/a5874279b6.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/zuxadol/acidemia_y_acidosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0487/7261/2262/files/city_and_county_of_honolulu_public_access.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0203/6902/files/60215211263.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/administrao_de_produo_livro.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/xuminupikenigu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84ddf1cd-05ff-48db-b3e0-16eebdad17c0/88860573466.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_off0000aa29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA29 5232 bytes
SHA-256: 6f8f983f91e45173d48bf1d37398d2bd7d0dee43c47557271798b32eb6b0a317
font_01_sfnt_off0000bc1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC1B 12852 bytes
SHA-256: 70b0197a24241a8368dd65c3ebddceca63fba4ac2e89c204342ca7676568e823

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