Malicious PDF — malware analysis report

Static analysis result for SHA-256 76f262b8382f49f9…

MALICIOUS

PDF

65.5 KB Created: 2020-10-09 04:52:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d0044320bf3f59a2b53d29a1f603500b SHA-1: d3fd0a16409fc76d9be4ddee866847555e57f70c SHA-256: 76f262b8382f49f94fe423649511429708c5fb8d0c680c67e412c1d2a7ec6d9b
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/strik?keyword=cherokee+the+noisy+neighbor In PDF document text
    • https://site-1042884.mozfiles.com/files/1042884/69747470302.pdfIn PDF document text
    • https://site-1043204.mozfiles.com/files/1043204/voxupip.pdfIn PDF document text
    • https://site-1037878.mozfiles.com/files/1037878/nodalawipemijulow.pdfIn PDF document text
    • https://site-1040048.mozfiles.com/files/1040048/75001019469.pdfIn PDF document text
    • http://files.risingstarstennisassociation.org/uploads/1/3/0/8/130874139/bowiwojunulag_vogomidegoditeg_guvuxukefev.pdfIn PDF document text
    • http://files.ancientpocket.com/uploads/1/3/0/7/130775969/sumulefixat-dutafev.pdfIn PDF document text
    • http://files.tsaiyicosmetic.com/uploads/1/3/0/8/130814145/wodixe.pdfIn PDF document text
    • http://files.warbirdsunlimited.com/uploads/1/3/2/6/132680822/wutifu_pasinoxidesi.pdfIn PDF document text
    • http://kukuz.animalvetfairfield.com/uploads/1/3/1/3/131383609/8573193.pdfIn PDF document text
    • https://site-1037037.mozfiles.com/files/1037037/wukima.pdfIn PDF document text
    • https://site-1043047.mozfiles.com/files/1043047/gunoxezorolugowu.pdfIn PDF document text
    • https://site-1037227.mozfiles.com/files/1037227/72603132540.pdfIn PDF document text
    • https://site-1036696.mozfiles.com/files/1036696/69193962104.pdfIn PDF document text
    • https://site-1042266.mozfiles.com/files/1042266/8798691870.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://uploads.strikinglycdn.com/files/9f51c884-47d9-4932-a3de-dc920e9dfa66/40898274009.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3aa4f85a-82a0-4de9-99f5-bb5d651fe253/malotezorek.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009e1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E1B 4820 bytes
SHA-256: 5532f7bd12f7d44d4215ee36be13a5e29ee37c9eb03ac8c1bbb91ba372767e72
font_01_sfnt_off0000ae7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE7E 11060 bytes
SHA-256: 6baa7315f1bf5745f9925ca37ee4d3e2cd85794a9570704ea25f304b934d8f23
font_02_sfnt_off0000d474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD474 16368 bytes
SHA-256: 870f462d6b0c661acac90795fde7d66427e1072e4ddb56d7223932a0d5facbe7
font_03_sfnt_off0000ea76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA76 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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