Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccac5e5755cea34b…

MALICIOUS

PDF

73.1 KB Created: 2021-02-14 16:21:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: dc5c75361e2abb3d5c63989808d88e66 SHA-1: 816926345343155c1bfdac44d12c966adc100e2b SHA-256: ccac5e5755cea34b1ab2e83097141c094a4170ce0339765d6fe932287a3dff16
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=tenant+contract+template+uk PDF link annotation
    • https://maladekokox.weebly.com/uploads/1/3/4/7/134745457/jaxalotezut.pdfIn PDF document text
    • https://zokilare.weebly.com/uploads/1/3/4/7/134767859/1b051eb0d4.pdfIn PDF document text
    • https://nametipij.weebly.com/uploads/1/3/1/1/131164318/fivagulegofegix-xovagero-bumid-vetajufigis.pdfIn PDF document text
    • https://rozenawaxu.weebly.com/uploads/1/3/4/5/134517597/lofomuzatamopa.pdfIn PDF document text
    • http://aydym.club/43262637344alzqb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426822/normal_6025d03187398.pdfIn PDF document text
    • https://gewukojinita.weebly.com/uploads/1/3/2/7/132712116/f683f63.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369907/normal_5ff3eead5bffc.pdfIn PDF document text
    • http://cyberghost.store/wow_cataclysm_engineering_leveling_guide_1-_525rbr9n.pdfIn PDF document text
    • https://zinibikilejob.weebly.com/uploads/1/3/4/8/134886520/dumukobe-pepid-gelirezuruli-joramid.pdfIn PDF document text
    • https://mewemevo.weebly.com/uploads/1/3/1/4/131454270/84026.pdfIn PDF document text
    • https://totijavefukaja.weebly.com/uploads/1/3/4/7/134705726/7873085.pdfIn PDF document text
    • http://okclub.org/14407568078slkap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454299/normal_5fc61028cc814.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479446/normal_600004164dad7.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/baxegezivumi/33023288820.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/android_module_vs_java_library.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/ayo_teo_reverse_mp4.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_off0000e513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE513 4912 bytes
SHA-256: 3c5f96cb934d185dea49f3f8717d15a1da4c7f3b5518e3566f3ba8a2a9058abf
font_01_sfnt_off0000f5b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5B1 9936 bytes
SHA-256: 67e6c07920312e65e5300ee551293ab5afd8428e0a0673d0072c31c3e61e7358

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