Malicious PDF — malware analysis report

Static analysis result for SHA-256 5600e595601471fc…

MALICIOUS

PDF

39.7 KB Created: 2020-11-07 22:14:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: aa01290751c4cbb5db075c6c41ab96b1 SHA-1: 1901652e46957263b132136e161e86d98b99953b SHA-256: 5600e595601471fc689e1c6d766fbe3f6d7849c5b7cd21b6b3d774fb8b38b6e2
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://traffking.ru/aws?keyword=2015+camry+service+manual In PDF document text
    • https://dozexida.weebly.com/uploads/1/3/4/5/134590021/tiberirifoxa.pdfIn PDF document text
    • https://tisatazufewuvo.weebly.com/uploads/1/3/1/1/131163687/a376ee.pdfIn PDF document text
    • https://matasomorat.weebly.com/uploads/1/3/4/4/134492922/lufokanagegese.pdfIn PDF document text
    • https://kazofinuso.weebly.com/uploads/1/3/4/3/134369681/zodipe_pimuwowerufezif_xarodafofu.pdfIn PDF document text
    • https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/tudibesepoma_megite_vowewo_bojejomagujalox.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/tikezeb.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/busutafitufe/88813554795.pdfIn PDF document text
    • https://vadazigifexe.files.wordpress.com/2020/11/gopiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90cd8106-88b4-4050-ba08-03c1b9d5a648/san_juan_21_fleet_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a319624-4d1c-4447-966d-173732989a95/unix_network_programming_by_w_richard_stevens.pdfIn PDF document text
    • https://dawadin.files.wordpress.com/2020/11/14711918979.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bca29dbe-6a7a-4361-bd6d-94f98bfff87d/mixizebazusujobeweme.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9e4fbe7-bdc0-416e-a303-18d62b4fcd95/bumakekebaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aee09f9f-13ac-489e-95e3-66d52ed9b102/practically_speaking_free.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/35366704576.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_off00005b35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B35 5460 bytes
SHA-256: d2a6e290a470f8103f8fd66c3ef31ef5356b542fa09d5eaf76051a212d853410
font_01_sfnt_off00006dc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC4 10620 bytes
SHA-256: e830d1434647bbb532b1f7c3734840353ada605aa9c6b94d963dd5db318d3310

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