Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e327b546b05e5d9…

MALICIOUS

PDF

67.1 KB Created: 2020-12-20 02:02:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 93563afda4650f062a1bcca9e1f81c64 SHA-1: b74d2cbd0d2f4028b0555c8a05c615209736cc66 SHA-256: 0e327b546b05e5d983f0ad43cc17bc4468ea3ccc3a387d3775f29061e6af169d
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a large number of external links, suggesting it is part of a link farm or phishing campaign. The primary URL, https://traffking.ru/123?utm_term=mt+crawford+va+winery, is likely the intended destination for malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffking.ru/123?utm_term=mt+crawford+va+winery PDF link annotation
    • https://mepubigavij.weebly.com/uploads/1/3/4/5/134599646/zuwotes.pdfIn PDF document text
    • https://jolibudowuw.weebly.com/uploads/1/3/4/5/134596284/d984d2d3a9b1cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413243/normal_5fdc8a6f835b0.pdfIn PDF document text
    • https://zesalogerevuj.weebly.com/uploads/1/3/4/6/134684883/buwek.pdfIn PDF document text
    • https://zeronifoza.weebly.com/uploads/1/3/4/3/134312515/kobojojo-fetoduguk-vasawule.pdfIn PDF document text
    • https://nemaxalifaxibox.weebly.com/uploads/1/3/4/6/134627725/zinumubeterude.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393204/normal_5fb5b86b1ca9a.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/nelizenejakarug/15912200069.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5b2462cf09257bd8c4d90/t/5fd6e5120f11661d4c3f54ee/1607918866450/jidovakorivini.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdcab432373c863b887b4f8/t/5fdcb0e8ec23fe111c6145d1/1608298728863/melba_copland_secondary_school_uniform.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd31e79fa030632b91b09e/1606234599860/whirlpool_ultimate_care_ii_super_capacity_plus_dryer.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc56ccf9955c744b559bc7a/t/5fcaaea00e993f2b0656f22c/1607118497022/teacher_assistant_course_online_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/rijujawirabekagifu.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/96557448522.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4e694085bf90c0e16c363/t/5fc7a54b1d106d256bc9451a/1606919500348/87012105221.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfd18111f6a419847f67ca/t/5fc6c866788a962b7c19c69f/1606862950972/suvig.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b4a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4A1 5064 bytes
SHA-256: c99263825ebb886c9007ebe05277a02febe561eb77fbbe031b8aad701f23a65c
font_01_sfnt_off0000c618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC618 10984 bytes
SHA-256: c6e9690fe4ffb8722f511adbc6d8dc44913cf7504b72a560957ab987f3702cba
font_02_sfnt_off0000ea78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA78 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e

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