Malicious PDF — malware analysis report

Static analysis result for SHA-256 431fa7f63a748041…

MALICIOUS

PDF

72.2 KB Created: 2021-02-21 00:38:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: b89fb3eafc162af51430bbdbbb0b0603 SHA-1: c39f187b3812c1e1b98994f1863e1cee3df439b6 SHA-256: 431fa7f63a748041df2a9fbc8d90218c7b067d3e67e473d508786c70059266c5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wix?keyword=petz+5+wiki PDF link annotation
    • http://delayikapy.xyz/infected_ear_cartilage_piercing_antibiotics2o3v4.pdfIn PDF document text
    • https://sererewaxux.weebly.com/uploads/1/3/4/9/134903335/nirufulokonel_dunasej_gofudolun.pdfIn PDF document text
    • https://vanazufir.weebly.com/uploads/1/3/2/7/132740694/fidipirunokimo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481164/normal_6012ae0c89413.pdfIn PDF document text
    • http://pekibule.iblogger.org/maze_runner_book_report.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408875/normal_5fe2c0c22f4cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471703/normal_5ff85c51c80a5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417033/normal_5ff76ec41b383.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467318/normal_601b359b8e0db.pdfIn PDF document text
    • https://dogusomuribe.weebly.com/uploads/1/3/0/8/130814063/98c7f431c3f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387712/normal_5fd6444096c8f.pdfIn PDF document text
    • http://luminar2-download.xyz/50834018171brhui.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481695/normal_600c18f7705dd.pdfIn PDF document text
    • https://tevaxuxelajuri.weebly.com/uploads/1/3/2/7/132712575/3332596.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wijuromosumeko.rf.gd/adobe_animate_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/gofilafixu/getewerapali.pdfIn PDF document text
    • http://posijibanif.epizy.com/12901497540.pdfIn PDF document text
    • http://xegiwoko.rf.gd/vukojewifulorinasepil.pdfIn PDF document text
    • https://s3.amazonaws.com/wemofodi/7113737144.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/garand_serial_number_guide.pdfIn PDF document text
    • http://jesebikalag.epizy.com/charlie_brown_coldplay_piano_sheet.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE026 4496 bytes
SHA-256: 374aaa7b3d32a4502182f5c69f030ecbbe0a0395d332d0fdd6035930a61b19fb
font_01_sfnt_off0000efab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAB 11012 bytes
SHA-256: dd5266478c7e964581bddd55b5fbe38befd0818176619a7f2f5ddde521a79161

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