Malicious PDF — malware analysis report

Static analysis result for SHA-256 65e17d8906ddf806…

MALICIOUS

PDF

61.4 KB Created: 2020-10-05 18:09:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d140b430a6d387b382bdfcd92184f4c7 SHA-1: 5a77918c1b2d18ef494b94b53cedbba0a53a7af5 SHA-256: 65e17d8906ddf806b252d8f80cdba134f97fc6a4ed6fedb86493e77e4ade8667
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://ttraff.link/pify?keyword=wow+tcg+comprehensive+rules In PDF document text
    • https://site-1042016.mozfiles.com/files/1042016/sevotodomoku.pdfIn PDF document text
    • https://site-1043080.mozfiles.com/files/1043080/lagijosopina.pdfIn PDF document text
    • https://site-1042498.mozfiles.com/files/1042498/buxosupabiguregeg.pdfIn PDF document text
    • https://site-1037827.mozfiles.com/files/1037827/36813022139.pdfIn PDF document text
    • https://site-1041614.mozfiles.com/files/1041614/mimixad.pdfIn PDF document text
    • https://site-1039424.mozfiles.com/files/1039424/diwev.pdfIn PDF document text
    • https://site-1039721.mozfiles.com/files/1039721/32069669770.pdfIn PDF document text
    • https://site-1042765.mozfiles.com/files/1042765/rituvav.pdfIn PDF document text
    • https://site-1036864.mozfiles.com/files/1036864/vafukesejomuduzarunik.pdfIn PDF document text
    • http://zogizu.onesailorboutique.com/uploads/1/3/1/6/131606066/bazebakelavax.pdfIn PDF document text
    • http://files.marylouriordonandjoancaplan.com/uploads/1/3/0/9/130969776/gowotuji.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/cb7c33ae-4f2a-4e2b-bd39-764d56f100ac/29683398990.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/567716d1-1940-40db-9915-8d7507da89d4/19946146644.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d742f728-a183-42ca-9aeb-663467a627c3/metotufikojizosiwonixugis.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a5cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5CB 5184 bytes
SHA-256: ecb9e3928caffa99207b3dc2c2b25de88a4caa33828507b8c2ffbbe80e067cbd
font_01_sfnt_off0000b770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB770 10216 bytes
SHA-256: c8616b6b2b450e6d1fd933182403023e3ba04ba00df3db96e4f20bbf0eb05004
font_02_sfnt_off0000da6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6B 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f