Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e57af739cec171…

MALICIOUS

PDF

47.2 KB Created: 2020-10-23 01:18:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 68a144e44480d4c7724058c6b17fed10 SHA-1: b852c1f398714aa044a5b4664e959b79f5f99aa7 SHA-256: d3e57af739cec17129950a428828d0b9679b42c6d30fb6dc4d07186d83a98498
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/wb?keyword=syphilis%20during%20pregnancy%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374699/normal_5f9165ac81429.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384647/normal_5f90577f99c4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380674/normal_5f91f513ac319.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390068/normal_5f8dc330bbe49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367013/normal_5f87415ddcc0e.pdfIn PDF document text
    • https://jikeberu.weebly.com/uploads/1/3/1/8/131857846/7372727.pdfIn PDF document text
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/zebemub-rolalupewevuti-lolulazilafu-gotikuz.pdfIn PDF document text
    • https://buvusujekigipo.weebly.com/uploads/1/3/4/4/134453925/ganebadode-xizajekaxigizun.pdfIn PDF document text
    • https://puvovajol.weebly.com/uploads/1/3/4/0/134040332/dalutuzexoxusod_tasadovivi_xerilufenaxaloz.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/038fd5b6-34fb-4686-a780-b84bbcadf983/repajivarupu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a238007-1ce5-4550-a59d-07d0da9babbe/8791669144.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f6ea98f-69f1-496a-909b-4f691851d729/patibowabejarifexuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48818eca-c1aa-4820-8718-cd98a4c1841f/the_misfortunes_of_virtue.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/661612d2-2fce-40ec-a3a4-d1e23e3141ee/769261604.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/muzoporapiburotebojonifon.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/46861105035.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/nerve_growth_factors.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/59564529762.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/10545020048.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/detection_of_aflatoxin_in_food.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/xiwesiwiv.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/vuterinekij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6373/6485/files/legionary_the_roman_soldiers_unofficial_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/6050/1921/files/zubesos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/two_way_prepositions_german_worksheet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0D 5316 bytes
SHA-256: fc86a03d211d3663ac792eb1b04a42d32dc0b8771685189fc93aa84d871a643f
font_01_sfnt_off00007e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0B 10212 bytes
SHA-256: 478ab74a0106614a82b87c7d621bddfcca0c8d6eb2be59be020d113a49236070
font_02_sfnt_off0000a0bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0BF 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3