Malicious PDF — malware analysis report

Static analysis result for SHA-256 03111fb2cc70e9f4…

MALICIOUS

PDF

65.6 KB Created: 2021-02-14 18:05:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 748a0fbfbd8c6772259f0733db603526 SHA-1: 0baacb7a06d630c03a37232641ddceb8addc6fc1 SHA-256: 03111fb2cc70e9f484911abfc18a8864aa061db2aefec7c7ac8c20858c5b55b0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://maypoin.ru/wix?keyword=start+jon+acuff+pdf+download PDF link annotation
    • https://cdn.sqhk.co/patizuruf/g2hfoNN/rexenilimozejujilukefiru.pdfIn PDF document text
    • https://cdn.sqhk.co/melipetoluf/fhhjejg/49415554623.pdfIn PDF document text
    • https://penuwepilaxol.weebly.com/uploads/1/3/4/7/134756509/6460210.pdfIn PDF document text
    • http://pafekusiwajida.66ghz.com/30531789600.pdfIn PDF document text
    • https://rijagadufe.weebly.com/uploads/1/3/1/6/131606992/1321892.pdfIn PDF document text
    • https://buzijivugaza.weebly.com/uploads/1/3/4/7/134709386/0e0949dc9e46e5.pdfIn PDF document text
    • http://artelamp.store/epigastric_hernia_repairrah3u.pdfIn PDF document text
    • https://nilemesobipefuj.weebly.com/uploads/1/3/2/3/132303022/nusatikaruvu-kunemazo-jalagoreje.pdfIn PDF document text
    • https://pigulanofalo.weebly.com/uploads/1/3/1/4/131406379/dowulufevesota.pdfIn PDF document text
    • http://helpcenter.business/9260609847692a8b.pdfIn PDF document text
    • http://mmuuue.space/riwotidugukefejisuxudavakyjh7t.pdfIn PDF document text
    • https://gakulenem.weebly.com/uploads/1/3/1/4/131437742/ae1905b088b074.pdfIn PDF document text
    • https://cdn.sqhk.co/mewovegid/ehjjiie/rodulabesi.pdfIn PDF document text
    • https://fibarivinudew.weebly.com/uploads/1/3/5/3/135387866/ec151.pdfIn PDF document text
    • https://kowepesabileb.weebly.com/uploads/1/3/4/6/134635017/eb836a30a80.pdfIn PDF document text
    • https://cdn.sqhk.co/bedazume/hhijOFa/27834155294.pdfIn PDF document text
    • http://revershjtb.site/fudusotodafediwijujubehw49v.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_off0000c4ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4BA 5240 bytes
SHA-256: fd21fcb4090b2248dd2dfac3d6d4bb4937aae8e8c27355119d47e8e3b4942887
font_01_sfnt_off0000d6b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B6 10144 bytes
SHA-256: 0e30584b6d781eef79d7b8b06ae2a8027ae8f6e79495b225a5af29caa56d46d5