Malicious PDF — malware analysis report

Static analysis result for SHA-256 7570a557f442ada7…

MALICIOUS

PDF

71.2 KB Created: 2021-03-05 02:41:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c578287be92cdbeb64375763359f1f9b SHA-1: d1d351f144e80c8f8e88025c2de57ec76c30d6da SHA-256: 7570a557f442ada70f6be113c6d8aed7333ee66f3e46d593b17a21a76bcfd828
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://midufefew.ru/award?keyword=car+dealership+business+plan+sample PDF link annotation
    • http://igcopyrightverify.com/what_is_gothic_architecture_styled85nz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495849/normal_602e48d2e44f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405922/normal_602477f2180d4.pdfIn PDF document text
    • http://titoto.xyz/47331168671u94s5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443574/normal_60248abb358ff.pdfIn PDF document text
    • http://miiliioner.xyz/denojefarotewokotobevi84yqe.pdfIn PDF document text
    • https://jiwebatije.weebly.com/uploads/1/3/3/9/133997557/marowulijopufaforu.pdfIn PDF document text
    • https://guvufusefek.weebly.com/uploads/1/3/1/0/131070011/lokugitapelosa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393776/normal_5fd7b4f174f5a.pdfIn PDF document text
    • http://shop50off.info/14361430446hl1ao.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471481/normal_603ae65fcaa13.pdfIn PDF document text
    • https://gimiduti.weebly.com/uploads/1/3/4/7/134711596/nojusemotej_kikagetivil_tozawugabirawek.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378170/normal_5ffc8bd5e3f04.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422144/normal_5fdd4947e2f0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388841/normal_6020931c4bb91.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/nice_antenatal_care_guidelines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f39bb449-db74-4bd1-94d8-23a580179fbb/snapper_rear_engine_rider_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53ca6092-47ed-4d86-8f98-cd004629400e/kenmore_coldspot_ice_dispenser_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/82963399514.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46964f01-9bc3-4de8-afe5-ea89ed3cd329/73450192913.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_off0000d96f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD96F 5244 bytes
SHA-256: 5559cfbf0fdba6b8b99b0ee979a6ad2fb87a6d3ef6f3ff0801f9507372ddbfef
font_01_sfnt_off0000eb0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB0B 10776 bytes
SHA-256: f177b7abbb6eebc4deb7924e0287579d10f84a4305d2c1a81806c130fde1f284