Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b2ec56757164849…

MALICIOUS

PDF

51.1 KB Created: 2020-11-08 00:09:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 019af42378999eb09f6f6dc29d86b4af SHA-1: bd367682800c04ffe31429ab7afcec3559ec04fe SHA-256: 3b2ec567571648492028157dac6fcb2ecfeeaef040b8e5f93a7a87812341273a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=onmyoji+summon+circle PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402247/normal_5f9d4464aaa6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384144/normal_5f9ab84d67091.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374517/normal_5f952c1de9aa3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448542/normal_5f9f64cba50a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383149/normal_5f8ee05805ee3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365536/normal_5f90583791937.pdfIn PDF document text
    • https://nimewoguvinu.weebly.com/uploads/1/3/4/4/134433183/tenebereza.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/gurowozenupifi/xakenozalal.pdfIn PDF document text
    • https://meniluw.files.wordpress.com/2020/11/lewexofiganekejeki.pdfIn PDF document text
    • https://bubakujane.files.wordpress.com/2020/11/dugajowu.pdfIn PDF document text
    • https://zegegek.files.wordpress.com/2020/11/belajar_analisa_fundamental_saham.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/ludavikogobarameralulo.pdfIn PDF document text
    • https://wigamawipi.files.wordpress.com/2020/11/61574112179.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/274687f4-31ba-40e5-830e-c2a231b5dc17/zepinukoparunoxom.pdfIn PDF document text
    • https://xigikomi.files.wordpress.com/2020/11/sufodu.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E58 6564 bytes
SHA-256: 9aa724aab4fa4c5d592435552918aa6d54b1b8ad28defa29e2151b6f0ce5b693
font_01_sfnt_off00006e97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E97 4040 bytes
SHA-256: acccb2cfd123119be0ad7fbd812b9006358adf088b73773e98155605e4151c84
font_02_sfnt_off00007d02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D02 4940 bytes
SHA-256: 8fefcfb69343df4a153d02512fd6ec3e149f5760bdb5e3281f17a53ead5248f9
font_03_sfnt_off00008dbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DBF 2912 bytes
SHA-256: 3aed55dc4c8cfd9e87e8cf5232671286cdfef403eda06a5980c669ea1af4a72f
font_04_sfnt_off00009a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A19 10632 bytes
SHA-256: 614c5720686bdf62770a6111cd9f685dbfeb90f0c58f39ebe221cc802f134ad6

Open this report in the interactive analyzer, or submit your own file for analysis.