Malicious PDF — malware analysis report

Static analysis result for SHA-256 35008ed467d3a20a…

MALICIOUS

PDF

72.3 KB Created: 2021-02-27 11:23:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: e32a8568b76cd653a9b111723d77aa50 SHA-1: 6cc0c20ad259a66a3fa89a2bebd699feaa1eacb1 SHA-256: 35008ed467d3a20a550279ea860184d57ce3cb440db00f9e8d2d96a598126950
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, suggesting a link farm or phishing operation. The embedded content, though heavily obfuscated, appears to be designed to redirect users to malicious URLs, likely for further exploitation or credential harvesting.

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://dugedepap.ru/wix?keyword=area+of+parallelogram+vectors+examples PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454182/normal_602ebf652abab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451021/normal_5ff69f5eaa07e.pdfIn PDF document text
    • https://zezebeburopixem.weebly.com/uploads/1/3/5/3/135326834/pekikumilafuxeban.pdfIn PDF document text
    • https://veraweno.weebly.com/uploads/1/3/0/7/130739577/b4d35ebef3355d.pdfIn PDF document text
    • https://webuwoterin.weebly.com/uploads/1/3/4/5/134589655/wigetelulex_nikorev.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376611/normal_5fefefbcdf61e.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/Rut5iac/vumarowifiwebabigaxanuv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409118/normal_5fc7bc934ea26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492250/normal_600f4cebd7448.pdfIn PDF document text
    • https://gawakugoful.weebly.com/uploads/1/3/4/7/134757428/dozizusevajewov.pdfIn PDF document text
    • http://mitatizizuje.mypressonline.com/i_am_a_child_of_god_tattoo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469378/normal_5ffb0c2db4556.pdfIn PDF document text
    • https://jevixivuxed.weebly.com/uploads/1/3/4/6/134622771/8326970.pdfIn PDF document text
    • https://levavepisemewo.weebly.com/uploads/1/3/5/3/135303450/xeganoxipu-dugofe-xarafutago.pdfIn PDF document text
    • https://cdn.sqhk.co/vamunidibu/utjcGji/daily_planner_habit_tracker_goal_organizer_gtd.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_off0000dbd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD5 5452 bytes
SHA-256: fad15524dae6a80af6e3724679861bde6d9f12be7e33b0efc332776fb6af4bf6
font_01_sfnt_off0000ee5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5E 11104 bytes
SHA-256: 167a421fbe2a0facfceffbbc1d5aee38b8496211b291473aaaf2627d5fa74e50

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