Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffd5959a3d05ae53…

MALICIOUS

PDF

65.7 KB Created: 2020-11-07 18:07:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d780370594c039b7b3698e34a55677ab SHA-1: f2cd2d52cd797fe7c111771c9c16db097cb0ad27 SHA-256: ffd5959a3d05ae53c3bc383d02aea64cd71e241e86bf0940eed2f003e662a72e
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafftec.ru/aws?keyword=remote+adb+shell+apk PDF link annotation
    • https://besavikeneg.weebly.com/uploads/1/3/2/8/132815808/godiv.pdfIn PDF document text
    • https://wozogerodinanu.weebly.com/uploads/1/3/4/4/134498855/waxuvigitisipuki.pdfIn PDF document text
    • https://topemarepebide.weebly.com/uploads/1/3/4/3/134316461/1631302.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/zebapesuluboxaj.pdfIn PDF document text
    • https://nigokozop.weebly.com/uploads/1/3/4/4/134436215/filiw.pdfIn PDF document text
    • https://dedeluruxizo.weebly.com/uploads/1/3/4/3/134305162/e1b91d42.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/3d6b608f-0338-442e-8ecc-58939a0abee7/77998639793.pdfIn PDF document text
    • https://retivot.files.wordpress.com/2020/11/mufizotoko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcc6f247-df6c-4553-9248-7bb19333d851/xugugalofimukoxo.pdfIn PDF document text
    • https://sakazedeg.files.wordpress.com/2020/11/25933203693.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/173f732f-382e-43ac-b197-63eefe5c44c3/fimavufusi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0845709b-fcb5-4f6d-b0a9-36ca9d2e6c9d/vubewigaredotezagawotid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b37309f6-1374-40fe-af6a-56ac625a266e/38564515879.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ab2bec9-4b16-4d0e-a176-7501859107f5/fopizesike.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_off0000bd73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD73 5312 bytes
SHA-256: 13c2832979bbf1b7d42a4a3fc5dd425248c1ad6b4a35124714277c00e56f79a5
font_01_sfnt_off0000cf57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF57 13016 bytes
SHA-256: c172ade89de00d292129ac4e59950f9998ed451159a9cf1ba4e56bb1f07efa9d