Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0ed5980b1dff8e9…

MALICIOUS

PDF

77.2 KB Created: 2021-05-07 08:03:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 3bcf491fe37885e5ba3d0219caa5fc0f SHA-1: d14398b3758f342cbafc597c611ed98755737748 SHA-256: e0ed5980b1dff8e99c10c5285a9a66b0199098111ccc3f073cf48fbf580bb0c8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, many pointing to Weebly and other hosting services, suggesting a link farm or phishing operation. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and numerous external URIs are indicative of malicious redirection or content delivery.

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 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.
  • 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://fokemale.ru/strik?utm_term=percy+jackson+and+the+lightning+thief+audiobook+chapter+21 PDF link annotation
    • https://dusomekekonipa.weebly.com/uploads/1/3/4/5/134580960/mavupaxovizeligo.pdfIn PDF document text
    • https://rafitiwaxaxeb.weebly.com/uploads/1/3/4/9/134903343/nakoba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368770/normal_60036221397dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466364/normal_5ff8f38995984.pdfIn PDF document text
    • http://idealslimitalia-official.site/88673649960zyh3w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407313/normal_602be900ace26.pdfIn PDF document text
    • https://mejibafizafev.weebly.com/uploads/1/3/4/0/134042836/8178401.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446782/normal_5fda1807df448.pdfIn PDF document text
    • http://creampiepow.club/falitlb69h.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/juzewojavomofew/libejefubekasudobekuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/free_book_mockup_psd.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/80152901645.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/how_to_get_a_drivers_learners_permit_in_texas.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/alisha_chinai_songs_320kbps.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd31b32c-f1ea-4898-a60d-1e18ab7373f1/how_to_start_the_ninja_professional_blender.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/sinhala_subtitle_cartoon_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/free_bengali_calendar_1424.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/hearthstone_warrior_deck_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0735df8b-7b81-4bb8-a453-3ec9025c7d55/55302276977.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8359330e-8acd-4783-9d82-a0222144e714/contrato_de_alquiler_de_casa_republica_dominicana.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_off0000f0a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0A9 5984 bytes
SHA-256: 83d26bc9228a261b9da20713cea0d2228c1c8c054fbb1ca16cb58dc522cdde36
font_01_sfnt_off00010513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10513 10092 bytes
SHA-256: 01d03ad2e1cdcd73fac16b805be7cfd7f6a3810fb5c4d5163a14bd6d18458266

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