Malicious PDF — malware analysis report

Static analysis result for SHA-256 58e707e7f11f7002…

MALICIOUS

PDF

41.2 KB Created: 2020-10-30 12:20:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 1efc8d6ab8d8c7cd60791baf8db87084 SHA-1: 92501ebaec77ca19e2516e9af86d5c963a2cd23f SHA-256: 58e707e7f11f700209cc8c3b49f169b999a5d643af6c7117e0e30ceee9277fa4
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by an ML classifier and contains a large number of embedded links. One of these links, 'https://ggtraff.ru/aws?keyword=dino+game+hacked+unblocked', points to known malicious redirector infrastructure. The document appears to be part of a link farm, likely intended to manipulate search engine results or redirect users 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=dino+game+hacked+unblocked In PDF document text
    • https://cdn-cms.f-static.net/uploads/4382192/normal_5f8b4e3024332.pdfIn PDF document text
    • https://jifefovemerozix.weebly.com/uploads/1/3/4/4/134444698/2934217.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385412/normal_5f93a4454723c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367964/normal_5f904acc8da40.pdfIn PDF document text
    • https://mekuxiwefajup.weebly.com/uploads/1/3/0/7/130739023/950f5d1ba8e13.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6e2801f-047a-4c09-8649-a32c3794d069/adirondack_daily_enterprise_facebook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d13311d-766e-4132-a415-cb17c3a2e093/45346675615.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/559f82d9-06a2-44f7-b09e-3dcf117082f3/naruto_impact_save_data.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/0969/3636/files/16415109074.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2b5ee69-cecb-4bb4-a3f9-30e3a4794064/43065321721.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6776af9-250a-4992-86cf-237def317e8f/48820802192.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15dc09ca-089c-4c27-95d3-e5effc89a94f/35450253147.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/604c0f64-e538-45ce-9f26-45804ef91502/73967351376.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_off000061ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AC 5280 bytes
SHA-256: e19d5f9449f6b5fd4a5e9bad01f763e7af4c02db032e0289383e3c35298a64ed
font_01_sfnt_off00007387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7387 10668 bytes
SHA-256: 0568ad6d8e059b1f379e904248610fc185e39062c24ece03893ea7a0324a5c51

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