Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb2042e19830255…

MALICIOUS

PDF

40.8 KB Created: 2020-10-16 05:56:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 13f03252986d446bc632917f2f793c99 SHA-1: 19df2476a116134642fd46cb8fafd1f556e3ffbe SHA-256: deb2042e1983025521286c243e7911fba66e51f5abf9a513fe5585d5eee60df4
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://gettraff.ru/pify?keyword=access+point+adalah+pdf In PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/wevona_xekipexutafame_dutizet_fatumegod.pdfIn PDF document text
    • https://pobezewimo.weebly.com/uploads/1/3/2/6/132681951/tanimerazotif_mexaxuvu_boxizibidub.pdfIn PDF document text
    • https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/b628c54eef4e3.pdfIn PDF document text
    • https://nasinapalu.weebly.com/uploads/1/3/0/7/130739684/kujiruwug-migenojigilodu.pdfIn PDF document text
    • https://site-1041949.mozfiles.com/files/1041949/11245314995.pdfIn PDF document text
    • https://site-1048275.mozfiles.com/files/1048275/xulebikoboxenupala.pdfIn PDF document text
    • https://site-1040431.mozfiles.com/files/1040431/53414082431.pdfIn PDF document text
    • https://site-1037135.mozfiles.com/files/1037135/nutujeraxebeluxodezedu.pdfIn PDF document text
    • https://site-1037273.mozfiles.com/files/1037273/4494322402.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368736/normal_5f87b19ac8a2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365598/normal_5f870f81efa91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373502/normal_5f88fc0122fb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367311/normal_5f87590c52218.pdfIn PDF document text
    • https://nogafuku.weebly.com/uploads/1/3/2/8/132815296/6238932.pdfIn PDF document text
    • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/nesibuganut.pdfIn PDF document text
    • https://gikanirirexenad.weebly.com/uploads/1/3/0/7/130776133/jetuzakego.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1442/2169/files/54266830528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7125/7241/files/ponevejotijuvexifetatodi.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_off000062c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C0 5136 bytes
SHA-256: 0242531caee477dc9c287df48823cfb3ee7a2ed45a805ff747dde5be0f2db196
font_01_sfnt_off0000742d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x742D 10028 bytes
SHA-256: d0fa2d78ad9dbb6cf982464d1f531ccea204b0fb10207af7590a41f529bf97bd

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