Malicious PDF — malware analysis report

Static analysis result for SHA-256 56075eb506579df9…

MALICIOUS

PDF

68.8 KB Created: 2021-02-09 04:37:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7368dbbe5b39cd51bfa4ea4984dbd8af SHA-1: 1a776f83a2a98605d95048ce43d4750c1452445d SHA-256: 56075eb506579df99ccc606784630a8e660dd02e7baf05b9fd98feb818037981
186 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
  • 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.
  • 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://seumenha.ru/aws?utm_term=airdroid+app+apk+free PDF link annotation
    • http://6gusevshop.website/cintas_used_uniforms_for_salesgc9f.pdfIn PDF document text
    • https://xoxomupufolud.weebly.com/uploads/1/3/0/9/130969418/3217851.pdfIn PDF document text
    • https://memezuwiz.weebly.com/uploads/1/3/4/7/134702577/selonum-zurelivurumof-petekonexowuro.pdfIn PDF document text
    • http://nonretloli.site/polka_dots_and_moonbeams_sheet_musicgxz8w.pdfIn PDF document text
    • https://dopakujovifoba.weebly.com/uploads/1/3/0/7/130739833/luxitepun.pdfIn PDF document text
    • https://kewidanuratug.weebly.com/uploads/1/3/5/3/135323433/eaa6fad4608d4.pdfIn PDF document text
    • http://damvglaz0.xyz/55188065141ijvab.pdfIn PDF document text
    • https://wilegefozuf.weebly.com/uploads/1/3/4/3/134399327/lubegowaradamoniki.pdfIn PDF document text
    • http://idealica-tufficiale.website/mutebewuprbbdl.pdfIn PDF document text
    • http://zebrait.fun/nerabuforepuwavet5y3up.pdfIn PDF document text
    • http://milanomodaitaly.site/kegudubesabevad2r9jk.pdfIn PDF document text
    • https://bozalofagolukor.weebly.com/uploads/1/3/0/9/130969011/lufewugamem_kemefisomeguf_pogotageta.pdfIn PDF document text
    • https://vebaxifi.weebly.com/uploads/1/3/4/3/134360040/finisexewotunoj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404105/normal_5ff52acad5adb.pdfIn PDF document text
    • https://tixedasuke.weebly.com/uploads/1/3/5/9/135979549/pojuxisasubisujuwak.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_off0000d340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD340 4880 bytes
SHA-256: 185faddbb06b32fcc8bbea5b759c01add759fd2128fd46723860f1d3648d718b
font_01_sfnt_off0000e3ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3EF 10100 bytes
SHA-256: fc30966c34e9f8a78971a29474e1870b7d6ed29de990f50a775839e6ab7b0939