Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e86ecb200fa7226…

MALICIOUS

PDF

84.4 KB Created: 2021-02-22 09:17:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: acc49ad48640cb64e68a772e387c9298 SHA-1: ad9d449cfb0808b862b8d7740d3fc021e01ee353 SHA-256: 2e86ecb200fa7226a5dbc4105944cab1d56479bae5466a91dc9f7c3dccb1e5e0
186 Risk Score

Malware Insights

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

This PDF file was identified as malicious by a machine learning classifier and ClamAV, flagging it as a phishing trojan. It contains a large number of external links, many hosted on disposable domains, characteristic of a link farm designed to distribute malicious content or phish users. The embedded URL 'https://maypoin.ru/wix?keyword=k+molar+mass' is a primary indicator of the malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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=k+molar+mass PDF link annotation
    • https://ximepovefuvaxoj.weebly.com/uploads/1/3/1/8/131856443/posupizon.pdfIn PDF document text
    • https://nijasofefovo.weebly.com/uploads/1/3/4/7/134719995/6f14f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380383/normal_5fcf3ce5c14c7.pdfIn PDF document text
    • https://retarabad.weebly.com/uploads/1/3/3/9/133997928/bulamo-fidodeku-tafupapipadelu.pdfIn PDF document text
    • https://radamokugek.weebly.com/uploads/1/3/2/6/132696621/jomugimokis-vuxon-bijefojoz-wubisofilusow.pdfIn PDF document text
    • https://jimivisimobud.weebly.com/uploads/1/3/4/9/134901817/duxeneme.pdfIn PDF document text
    • https://xajerunufunofe.weebly.com/uploads/1/3/1/3/131378991/parura.pdfIn PDF document text
    • https://sasadopebob.weebly.com/uploads/1/3/5/3/135324308/manemililajurexizada.pdfIn PDF document text
    • https://kojemugolipoxo.weebly.com/uploads/1/3/4/7/134729864/bulelitazolize_furop_movofetaworud_lodefokovebini.pdfIn PDF document text
    • https://winenexosipagep.weebly.com/uploads/1/3/2/8/132814343/fec79ecd74270eb.pdfIn PDF document text
    • https://lenatazuponos.weebly.com/uploads/1/3/4/8/134888684/gejiweruzisipi-jeluzapupaxako.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ruxopagotar.epizy.com/exponents_properties_practice_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/56823965806.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/blank_number_line_worksheet.pdfIn PDF document text
    • http://sixuregorajaso.rf.gd/journey_to_the_center_of_the_earth_book_reading_level.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_off0000faf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF8 4800 bytes
SHA-256: e21e644d4b91271cf09239b81bd1461761f66a964fd58b682e8804d97ad81d4b
font_01_sfnt_off00010b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B2A 10656 bytes
SHA-256: e7410fb5a91ce94eda423319d33bdd1fee6d290f522df071feb3b1df5bc9e592
font_02_sfnt_off00012fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FD2 16060 bytes
SHA-256: 84d5bd19c210eb3b73ecc14096ab1e56fdfb5b80ce7ba4f0052c67c0c2b02727

Open this report in the interactive analyzer, or submit your own file for analysis.