Malicious PDF — malware analysis report

Static analysis result for SHA-256 d84e06c98c356eed…

MALICIOUS

PDF

46.7 KB Created: 2020-10-15 14:08:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 1223d932ee36d25b74e3d70b9c424ed9 SHA-1: 6fad38067310e13626f15af3fe754cf35ba490f7 SHA-256: d84e06c98c356eed7a51e6c35771a653df657404fbbc2e8531a5b80de842c2c5
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/pify?keyword=ps+vita+emulator+android+emuparadise In PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4d5351fbb209c0.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/6069273.pdfIn PDF document text
    • https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/a7b88.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/bfcfaa.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/2a74280d.pdfIn PDF document text
    • https://site-1039488.mozfiles.com/files/1039488/vujefuvirabedimoj.pdfIn PDF document text
    • https://site-1039428.mozfiles.com/files/1039428/pisulubavegajori.pdfIn PDF document text
    • https://site-1042444.mozfiles.com/files/1042444/equivalencias_de_unidades_de_presion.pdfIn PDF document text
    • https://site-1040504.mozfiles.com/files/1040504/25879224428.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/509dcc70-9d54-4ce2-8e64-e618c0dff8eb/bijitaxewa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/94c8ef96-0ebb-45e8-b131-31ea20f23524/39309591886.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04e25425-0b64-4dd3-a20b-aa77e009bf80/6994081004.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc3750a4-e095-45d4-accc-d5c9b07e41ae/6789655350.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c38396bb-0261-4793-9811-c7fddb3929b8/nalavarinarokatalulutekaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2df6dd51-e252-42dc-9d21-c7ae39571008/susorikakegutodusodawo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1bdeb71-74bf-49e1-8ac2-00381c4c4144/gowozenoxuberonexov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc62f58d-f39e-441d-a74d-3c5ca222277b/volusewiwaladakej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46357af6-7236-45f3-b195-17442c2589e2/34988433052.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17a4a9f1-3198-4c7c-a063-5eecf3b3f547/94290723047.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9249349-73a1-410a-8139-ea498d853262/20439830283.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54210102-a28a-4976-a93e-8a45d234e499/10190863634.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2375499-ede9-4437-92dd-de6cd5ba2e0f/5475771098.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_off00007895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7895 5168 bytes
SHA-256: e5ac70dc10d60fb72a80f69503e18c329a78188b927d5f9df6719728a994e2c7
font_01_sfnt_off00008a0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A0E 10328 bytes
SHA-256: e76dd2ee8b2e467f6cf80f7f20ae6390e9b2bb57f45f2e95e44722d3d2317679