Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0df8c638b8aac9a…

MALICIOUS

PDF

69.6 KB Created: 2021-02-21 06:09:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4577cb6d1ca454e1bf6c4677aa62e21c SHA-1: fd1ac809253a23927cafd195699aded541f34818 SHA-256: e0df8c638b8aac9ac361bc0897ab9a5632af7eb109c7597389c4a4824c0f60f2
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://baarspo.ru/wix?keyword=festool+parallel+guide+alternative PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392237/normal_5fd83b4c0479f.pdfIn PDF document text
    • https://rosanibo.weebly.com/uploads/1/3/4/8/134873488/6343714.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380887/normal_6007cb2799b2d.pdfIn PDF document text
    • https://cdn.sqhk.co/nofevemumidu/jdOgdgd/dinapomifepatutopopo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384160/normal_602b6a95aa1c3.pdfIn PDF document text
    • https://xajekedifa.weebly.com/uploads/1/3/4/4/134469171/tagejavulezazezel.pdfIn PDF document text
    • https://rilawexiretik.weebly.com/uploads/1/3/4/2/134267086/sifinatokir_jasuxelamux_pikososomono_mirajawarovi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485927/normal_5ff80cbca5dd7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412758/normal_6011e6ccb4d44.pdfIn PDF document text
    • https://mixunolonuwoja.weebly.com/uploads/1/3/0/9/130969204/viganodozibape.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452837/normal_5fe7e75d5024c.pdfIn PDF document text
    • https://vinofuloro.weebly.com/uploads/1/3/4/8/134850824/6316387.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tidefos.epizy.com/jesiz.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_off0000d54b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD54B 5144 bytes
SHA-256: a8ce3d1b21e9c729b22f6b864d16ff2ea8e941dea2a0215fb55063ab066b639a
font_01_sfnt_off0000e6e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E5 10264 bytes
SHA-256: 76400ec05e4143850e32d6f4823dfe0d6e9b047eaabcb91a20d19b112f49cfe0