Malicious PDF — malware analysis report

Static analysis result for SHA-256 059e2f93c3966bdd…

MALICIOUS

PDF

71.5 KB Created: 2021-02-23 20:14:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 49fd95ddf5f1c79fd3e04cce7a76fdc0 SHA-1: 90cae1566b4ebd4192dc8bdeb1ecf695e521127f SHA-256: 059e2f93c3966bddbc9e2edb4c4745f438239adca5b720316d7b074ce7e77e00
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://crophysi.ru/wix?keyword=duluth+shipping+schedule+2018 In PDF document text
    • https://static.s123-cdn-static.com/uploads/4453718/normal_5ff232b05c92f.pdfIn PDF document text
    • http://slmit.space/73128676460hlrqh.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/gbt1Gjc/crossy_road_disney_characters.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445541/normal_6028e86551afd.pdfIn PDF document text
    • https://niraniki.weebly.com/uploads/1/3/4/6/134662237/zelosap.pdfIn PDF document text
    • https://nafuvazufu.weebly.com/uploads/1/3/1/4/131407552/pubexewawem.pdfIn PDF document text
    • https://xobiduri.weebly.com/uploads/1/3/1/4/131437628/wataxanu-vamofekadomore-tetejogata-walebiserenadej.pdfIn PDF document text
    • https://sepuzudagek.weebly.com/uploads/1/3/5/3/135329554/donodib_zizajijiwapem_tomiradinata_rutetulavazexi.pdfIn PDF document text
    • https://moxalabukeziro.weebly.com/uploads/1/3/4/7/134772199/1195758.pdfIn PDF document text
    • http://ogranicbio.space/potion_crafting_guide_terraria6re0i.pdfIn PDF document text
    • https://pesuwoleze.weebly.com/uploads/1/3/5/2/135295903/sowodomuzogufulu.pdfIn PDF document text
    • http://s7hmus.org/how_many_chapters_in_artemis_fowl_book_1gae8t.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374956/normal_601db94a9ea52.pdfIn PDF document text
    • https://cdn.sqhk.co/jelivapizivo/hfUUjq4/thi_nails_and_spa_salon.pdfIn PDF document text
    • https://getesedalo.weebly.com/uploads/1/3/4/6/134629657/lafofazebadu_wepirebave.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/4l8cUTx/tavunarit.pdfIn PDF document text
    • https://cdn.sqhk.co/fapetemiji/j3jfBic/31893134835.pdfIn PDF document text
    • https://tubozabuzimez.weebly.com/uploads/1/3/4/8/134878922/runopejagekivebeb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410447/normal_5ff7d2476c72e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d16c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD16C 5548 bytes
SHA-256: 82a1334d0d914a59593d673f3b7dd0da2285f9a7885178196aa7af8834220c36
font_01_sfnt_off0000e460.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE460 14280 bytes
SHA-256: c6699d60d05e0a79f7276e93a6ab82a1d4e807e5fededcc2e5254d067218786b