Malicious PDF — malware analysis report

Static analysis result for SHA-256 f65709e0553c59be…

MALICIOUS

PDF

71.3 KB Created: 2021-02-27 04:55:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 833195ad5a0801ccad4e42aa8090a8eb SHA-1: 7e62b1e0fb64059b967958bba9969375fd289a0a SHA-256: f65709e0553c59be7bdaf9f7f1c699fda84ad1b44e8291d50e42d451ca60c430
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://zajinet.ru/award?keyword=spy+gear+trakr+app+builder PDF link annotation
    • http://rilomenininun.getenjoyment.net/what_is_the_best_knife_to_carry_for_self_defense.pdfIn PDF document text
    • https://pimefukidipobe.weebly.com/uploads/1/3/4/0/134096137/2028915.pdfIn PDF document text
    • http://warixedivukinat.mygamesonline.org/what_are_the_best_cordless_phones_for_hearing_impaired.pdfIn PDF document text
    • https://cdn.sqhk.co/getabemuto/cghQjdN/tisegabu.pdfIn PDF document text
    • https://lerizizevu.weebly.com/uploads/1/3/4/3/134314130/gezitid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407102/normal_6003a5b4d6616.pdfIn PDF document text
    • http://zegererevez.medianewsonline.com/gadegasuvatadokave.pdfIn PDF document text
    • https://dijuwinepogiw.weebly.com/uploads/1/3/0/7/130738679/fitab-zukabiduvora-nisoladaniwajeg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374843/normal_6036c28ea5650.pdfIn PDF document text
    • https://moluzepin.weebly.com/uploads/1/3/1/8/131856103/b55827befc462f.pdfIn PDF document text
    • https://sinegozedajosor.weebly.com/uploads/1/3/1/8/131871849/wexula.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mobosefevexaxep.rf.gd/lojes.pdfIn PDF document text
    • http://nununad.myartsonline.com/minabetovodozexiv.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_off0000da75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA75 5356 bytes
SHA-256: 5507c592f9fb6e0128bd253b569886a97cbc37f4a483f03af00b14b15c2e2827
font_01_sfnt_off0000ecc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC0 10548 bytes
SHA-256: 7e87dbf1aa967fcbaf8f5be86e17cbb297ea51da8836f01dc08b64ad936c1b6a