Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4d0a2208471364b…

MALICIOUS

PDF

43.2 KB Created: 2020-10-09 03:01:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: bacb7dcd88e2f2c4e05896ce84e55055 SHA-1: 676567dcec0c15c568a645e5d6443b00b2abab00 SHA-256: c4d0a2208471364ba6ddc67d9144d84240822991c3a00199c5d3130dad6de883
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://ttraff.link/pify?keyword=xbmc+gotham+13.1+apk In PDF document text
    • http://roboxa.maydwellarts.com/uploads/1/3/0/7/130738681/9408007.pdfIn PDF document text
    • http://files.jonishuman.com/uploads/1/3/1/1/131163927/6200501.pdfIn PDF document text
    • http://files.passionofchristbook.com/uploads/1/3/1/3/131379552/5b6768.pdfIn PDF document text
    • https://site-1040099.mozfiles.com/files/1040099/31838826875.pdfIn PDF document text
    • https://site-1039676.mozfiles.com/files/1039676/45274657867.pdfIn PDF document text
    • https://site-1036869.mozfiles.com/files/1036869/pakusixu.pdfIn PDF document text
    • https://site-1037010.mozfiles.com/files/1037010/raxuxesozalidegisu.pdfIn PDF document text
    • https://site-1039275.mozfiles.com/files/1039275/13320581692.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/1/0431/7446/1594/files/smallest_support_of_a_measure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8291/7053/files/14245667131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/2170/9724/files/cash_for_cars_okc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/642afe03-338a-4538-a8e3-9386db31ce18/1173999843.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/743a5186-6834-4757-a443-f0025ad590b5/56940638123.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88386364-73ee-4171-8ae9-ca0560b1a6d4/49320171209.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abd3c73e-2aa5-4312-9997-34c79d9d6376/vavop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b03e19b-faeb-425c-9118-65ba1cd97d16/gebodejomamenerigumew.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_off00006934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6934 5468 bytes
SHA-256: 285869f739c4ce79ccf0027d5e0ea2a5af97a24d801a191bfc889b3f3d5995a1
font_01_sfnt_off00007bbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BBE 10480 bytes
SHA-256: 81314a08d787289dd3beac823ee8d572167a6041d8b41d13eba15a8ca0c1eaaf

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