Malicious PDF — malware analysis report

Static analysis result for SHA-256 d82d00f0afbd380b…

MALICIOUS

PDF

48.7 KB Created: 2020-10-14 18:43:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 0ec8f69449c2f5658273a388abd0ea57 SHA-1: b802a27cdcbdb5fe2fe53b32bdd9e5f91d7cc15c SHA-256: d82d00f0afbd380b879658cee7c741e0228560829f85098fd479e4cbe6fcb758
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/pify?keyword=figes+a+people%2527s+tragedy+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365638/normal_5f871bba62372.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366014/normal_5f870207cb6ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365600/normal_5f8700ee424d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f86f8315c646.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f86ff819d80e.pdfIn PDF document text
    • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/kogog.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/vunud.pdfIn PDF document text
    • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/4ea5f8282d36a85.pdfIn PDF document text
    • https://tudupumodowi.weebly.com/uploads/1/3/1/4/131406798/fuvivuxedutizi.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/36ce75ac.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/8dd32fb2-2c82-4dfc-868d-d09832975b48/guliforixejobijuju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4290f62a-56bd-497d-b032-d8a589977f12/62928853497.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d608647-025b-4d3c-8492-0e44e2915939/6226311418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab6b1ee2-86cc-4d4f-97a4-2c6c0c19243f/sozefaxuzumujimosomuwufa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b514857-e306-44ab-a584-89f508abd656/sefogekurewesimasonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/2780/7646/files/nuwafadas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8881/3461/files/boyds_bears_and_friends_value_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1952/5534/files/visubolaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/4870/2630/files/whole_foods_foggy_bottom_order_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0599/5940/files/15660979977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9541/7237/files/packet_tracer_8.3.1.4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3563/8425/files/gear_reduction_starter_vs_direct_drive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23ca1aab-051a-4f13-89a8-dbaad1ece208/joxegitabe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b47bf490-c768-483d-b497-231df7ce8b7c/81090304636.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cccddc76-2ce1-4bd9-9b4e-998711159fb3/xigufabulumevabutivegopo.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_off00008090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8090 5300 bytes
SHA-256: 6a003b8e555db124ec3b7d0922c12d8c0cb39e1689dc5f1ea4d31e04b8aca89c
font_01_sfnt_off000092b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92B4 10160 bytes
SHA-256: 5545db838dd0248278b08c3ada1aef9847de2e0ec39b9ea4dd8ee86e4c83a28c