Malicious PDF — malware analysis report

Static analysis result for SHA-256 7233e42a8b08568f…

MALICIOUS

PDF

76.1 KB Created: 2021-03-03 01:39:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fa5d118843f73a2b93d12ba0e303d4f8 SHA-1: 5e0f4bbc0d4e54dc0ea4ee6352e65b4c481281ea SHA-256: 7233e42a8b08568f78933d7b72086794c356b22f37a0da20f212bbf62c409ada
184 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
  • 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://yafferge.ru/wix?keyword=isle+du+bois+texas In PDF document text
    • https://vimasavugaf.weebly.com/uploads/1/3/4/5/134587410/duwomejezotib.pdfIn PDF document text
    • https://zelubofiwexuf.weebly.com/uploads/1/3/4/2/134234915/magetupojaluxol_wawagivajuna_buzovasalaxiga.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369626/normal_6002c30e9f6a7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495558/normal_5ffd29ed19eb9.pdfIn PDF document text
    • https://tugofemupufere.weebly.com/uploads/1/3/4/5/134584107/pexir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469106/normal_602db3314643f.pdfIn PDF document text
    • http://tekdouche.xyz/blessed_be_your_name_sheet5uhjx.pdfIn PDF document text
    • https://gojudewusidaza.weebly.com/uploads/1/3/4/8/134888042/loweji.pdfIn PDF document text
    • http://trikolor.site/ratoxadelagawukiorwox.pdfIn PDF document text
    • http://golden-bridge.pro/swatch_watch_80s_ad1x2tw.pdfIn PDF document text
    • http://lemakomude.sportsontheweb.net/pelaxoxegu.pdfIn PDF document text
    • http://migriruy.ru/camera_canon_xh_a1_prixera9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473023/normal_603d513111c93.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wefofumerari.rf.gd/arjun_reddy_full_photos.pdfIn PDF document text
    • http://romewedupa.epizy.com/why_ip_camera_offline.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_off0000eb38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB38 4868 bytes
SHA-256: 7724abcebab476a7b7f200c6ceae860eb6d46c289cbbf5276f3ecab8e5e28c29
font_01_sfnt_off0000fbd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD5 12300 bytes
SHA-256: c456a1bd67bb2f02bd7e0d1d80880da7f7f37a9638c398b6a0ea7e26e9d50162