Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ddd3dbe581e59f7…

MALICIOUS

PDF

50.1 KB Created: 2020-10-24 17:54:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0dddb4d78e718adefe01dd4032abcee3 SHA-1: 506881f476017af5f1b7e848a4c04196eabb8efc SHA-256: 9ddd3dbe581e59f7828399a82c35462b9ebe85d08a8c2a78e4af5485a9e19a53
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://gettraff.ru/aws?keyword=dichiarazione+sostitutiva+dell%2527+atto+di+notoriet%25C3%25A0+modello+pdf In PDF document text
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/vuvidax-noxowezajuvalu-gajedeki-tusaz.pdfIn PDF document text
    • https://rabugotekinevod.weebly.com/uploads/1/3/1/8/131871666/6b97314b9e13d5.pdfIn PDF document text
    • https://femevidawivuk.weebly.com/uploads/1/3/1/0/131071063/xawixaravoniv.pdfIn PDF document text
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/a8c5456bfbd.pdfIn PDF document text
    • https://mutazodot.weebly.com/uploads/1/3/0/8/130874237/gufib_rapoladajavuluv_fifume_zoluvobik.pdfIn PDF document text
    • https://segakimorepej.weebly.com/uploads/1/3/0/7/130738797/85ea9.pdfIn PDF document text
    • https://tumixivig.weebly.com/uploads/1/3/1/6/131636813/0b25a38.pdfIn PDF document text
    • https://fusesekomufe.weebly.com/uploads/1/3/1/6/131606177/lodibanulimes.pdfIn PDF document text
    • https://biwazasidatuf.weebly.com/uploads/1/3/4/3/134373857/nitur_pejijiperu_vujojipujarozo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366374/normal_5f87a429e61d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390996/normal_5f9091f99aa51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369671/normal_5f8ed2d4b0c91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366335/normal_5f8711c43c8b2.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/8bb6a41d-b04f-44ea-bd76-e90f40b3f67a/zotibozisinuxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4854d78-8cbc-444c-a0f5-1eaf6c74066a/kanna_master_blaster.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6cbcd4f-60ec-40f5-8be5-28a2a3bc914a/31690177673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4571/4582/files/vokoxijavazaligeko.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/gagalim.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/lexical_categories_verbs_nouns_and_adjectives.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/error_bookmark_not_defined_word_to.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/62228554915.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_off0000817e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x817E 5772 bytes
SHA-256: c8fb875733b5751792fd18fb61845001e24b5ea2cf23b98803ad746210bab7f0
font_01_sfnt_off00009485.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9485 11008 bytes
SHA-256: d1ab04f7c745c2dcaac8351d0956f2bca2c57a58d8269108585d02b732fafe4c