Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eea05d1f031a272…

MALICIOUS

PDF

78.7 KB Created: 2021-03-11 00:45:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: bf2ff28587a3740a2cdb18f193e1d824 SHA-1: a3c6f0beb9e4791ea04d21d94e61ccdfbf434bd2 SHA-256: 0eea05d1f031a27295732dccd4250dab664807e8439fb6ab1581bfea1cd3fa57
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a technique often used in SEO link farms or phishing campaigns. The primary URL, 'https://gimoguvi.ru/wix?keyword=4l80e+transmission+controller+reviews', suggests a lure to a website disguised as search results. ClamAV and ML classifiers also flagged this PDF as malicious, indicating a high likelihood of malicious intent, likely related to phishing or scamming.

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://gimoguvi.ru/wix?keyword=4l80e+transmission+controller+reviews PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4454561/normal_5ff55a373bc8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446379/normal_600c40900fe5f.pdfIn PDF document text
    • http://palamuduto.iblogger.org/nazurimopawogikurokata.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460447/normal_5fcaf7238618d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426416/normal_5fc84ac36c8c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421623/normal_5fd8d0b5c28ca.pdfIn PDF document text
    • https://sidedelozamuk.weebly.com/uploads/1/3/1/4/131482822/darozisopejo-zirusegirirofij-jeralezi.pdfIn PDF document text
    • https://lozofedexipa.weebly.com/uploads/1/3/5/9/135969573/milada_pajenifeboxij.pdfIn PDF document text
    • https://zolefixu.weebly.com/uploads/1/3/4/4/134432518/wususivevozitirewoz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/34bed2b0-43fa-46fc-8934-b17d4e4c7689/midea_pressure_cooker_my-12ls605a.pdfIn PDF document text
    • http://wuvisefop.epizy.com/sbr_technology_for_wastewater_treatment.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/sopire.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/fruit_coloring_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/cants_form_illinois.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ddfd186-3670-41ad-b19d-e3a02f78bdd0/math_destroyer_review.pdfIn PDF document text
    • http://maboduxivugiv.rf.gd/iso_file_to_bootable_dvd_software.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/gofab.pdfIn PDF document text
    • https://s3.amazonaws.com/sazomo/kilinaxi.pdfIn PDF document text
    • http://nifuxezelepet.epizy.com/2018_statin_guideline.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90bf6168-0f39-480d-bdc1-fc3dfda2626e/buxezidaka.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_off0000f2be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BE 5428 bytes
SHA-256: 51cc81edab80fd7782c7ad2793c483f7c3948d12e18268064ff82b55d00e68de
font_01_sfnt_off00010530.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10530 11500 bytes
SHA-256: af55fbd376b1745a08f7f457614ed33c0dde6e2f2a331a9385bc729bbbf1f32e

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