Malicious PDF — malware analysis report

Static analysis result for SHA-256 8742f83e043a84aa…

MALICIOUS

PDF

68.7 KB Created: 2021-02-24 13:38:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3c3d675a792ea64d328b6ff5527c17f1 SHA-1: 906b7640e2552e3e62c8f7ed6855588e9608c5ec SHA-256: 8742f83e043a84aa02cbc1012235d7b2525260708fdecb817f85d4a2de9071de
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://bologen.ru/wix?keyword=panaderia+la+espiga+tulua PDF link annotation
    • https://radisowe.weebly.com/uploads/1/3/4/3/134366404/3882190.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422136/normal_5fcedf6372fb6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425010/normal_5ff0d027524d6.pdfIn PDF document text
    • https://serelikiwep.weebly.com/uploads/1/3/4/4/134476809/8990163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416661/normal_600d90d391853.pdfIn PDF document text
    • https://lewofadexireg.weebly.com/uploads/1/3/4/8/134868993/4aff1c129fe003.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503309/normal_5ff1e52fc813a.pdfIn PDF document text
    • http://zupaxowo.22web.org/deficiencia_de_vitamina_a_en_aves.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426270/normal_5fd7de6d08c02.pdfIn PDF document text
    • https://kisetizep.weebly.com/uploads/1/3/5/9/135992433/3782081.pdfIn PDF document text
    • https://natesikapepik.weebly.com/uploads/1/3/4/7/134750077/f82d4.pdfIn PDF document text
    • https://femovoba.weebly.com/uploads/1/3/0/7/130775826/6977463.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483089/normal_5fe82f8d942ae.pdfIn PDF document text
    • http://zufabud.22web.org/believer_female_cover.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dedamedasobime.epizy.com/animated_cartoon_video.pdfIn PDF document text
    • http://kefujuvaw.epizy.com/non_hodgkin_lymphoma_guidelines_europe.pdfIn PDF document text
    • http://kipalinuki.rf.gd/does_silkn_hair_removal_work.pdfIn PDF document text
    • http://rinebamade.epizy.com/xogipovep.pdfIn PDF document text
    • http://mugosovexu.epizy.com/55921800817.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_off0000c3a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3A1 5128 bytes
SHA-256: e95c2400d982c90fcd9789d39e9b68fcb0bdc23dad20fabc2830a8fb9a797761
font_01_sfnt_off0000d51a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD51A 1936 bytes
SHA-256: 84daf345e21b08075a6e329eeacb0a13a0447ddcc3efc64e98a9a4ab9c6a9d9d
font_02_sfnt_off0000de5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE5B 11600 bytes
SHA-256: 98ee3ca2f5baeeaa741a356300cd8251d222e0bda35f3986ee1fe0ce447dc791