Malicious PDF — malware analysis report

Static analysis result for SHA-256 84ad0822a5fb9300…

MALICIOUS

PDF

69.6 KB Created: 2021-02-16 16:08:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: aad4c1e5add004041f00c2565d7438df SHA-1: fd704c06cf661f6ff69b46416a2a30e0d91c5ef7 SHA-256: 84ad0822a5fb9300884999279b9d853fce02bd076c020698fa6c0784128c3ddf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/wb?keyword=how%20to%20apply%20semi%20permanent%20color PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4408993/normal_5fefc8cc5d15d.pdfIn PDF document text
    • https://dipakexamima.weebly.com/uploads/1/3/1/0/131069759/04e82be.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470545/normal_5fdf704889198.pdfIn PDF document text
    • http://bestplacefor.rest/17797093817a9lx4.pdfIn PDF document text
    • http://save50it.pro/certified_phlebotomy_technician_exam_study_guidewnqo4.pdfIn PDF document text
    • https://cdn.sqhk.co/zifuvifiweva/Zfhgqjh/tip_top_shoes_return_policy.pdfIn PDF document text
    • https://zekasujiminog.weebly.com/uploads/1/3/4/3/134366003/puxoxe_welulaxega_zokod_gudote.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459929/normal_6020c2e7ecb05.pdfIn PDF document text
    • http://frankiearvelo.com/bazel_0._15z6wa9.pdfIn PDF document text
    • http://donbetosstreettacos.com/home_street_home_design_game_mod_apkupz5z.pdfIn PDF document text
    • https://divupitibi.weebly.com/uploads/1/3/4/3/134328085/radedalagewadupusi.pdfIn PDF document text
    • https://cdn.sqhk.co/vavewiminiv/cji1GlW/ice_cream_maker_cuisinart_pink.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489850/normal_5fdfd86911d9c.pdfIn PDF document text
    • https://cdn.sqhk.co/kezavilageg/fpjdjfy/44744828928.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/gonima/nipubit.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_off0000d31a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD31A 5232 bytes
SHA-256: 16b6a0179aaba2acbf3ee61a54e82fa1c9c50e483680b8ba98044a09904e2a19
font_01_sfnt_off0000e4e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4E8 10328 bytes
SHA-256: 37e3621802a589d3268b67e2c9c35ce9d12736858e9ba741e4f58b645373ce0e