Malicious PDF — malware analysis report

Static analysis result for SHA-256 bce329ad57adaa82…

MALICIOUS

PDF

68.7 KB Created: 2020-12-17 16:16:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: cd20ec09ac3dd028fce15a80c3351bf7 SHA-1: 9b9823d03a99b500e8e3bb3437b3334150c2815a SHA-256: bce329ad57adaa82a44ffff9753e8fcc15b6209668dd3dd3d0b2e81af67143d5
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffe.ru/aws?utm_term=the+achaemenid+persian+army+duncan+head+pdf PDF link annotation
    • https://mamunazeve.weebly.com/uploads/1/3/0/8/130814121/3295207.pdfIn PDF document text
    • https://xedaliwim.weebly.com/uploads/1/3/1/4/131454603/08964147fd4868.pdfIn PDF document text
    • https://suduvigil.weebly.com/uploads/1/3/4/6/134697429/madur_tulejale.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467915/normal_5fba6a7291594.pdfIn PDF document text
    • https://weralafopibobal.weebly.com/uploads/1/3/4/3/134338927/kalovuje.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae0d2966-b900-4a32-aa1b-89ed0ebfc218/44910936918.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fe6a081-0fb2-4e06-99e3-f5addcd6076c/soil_boring_test_for_construction.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/54838753210.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4522faef-488d-4b23-b336-7f4e7e41b9cb/30776881872.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a8b9428-2255-4450-be83-47d356ef686d/los_padrinos_majicos_xxx.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb1b1576-b4f8-4193-a384-fb1fecff74ac/temasasefopejo.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/bardwell_f4_v1_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03438888-e25d-46ab-ab20-211e7f15b23f/24434544557.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/bovuwuki.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/fraction_attraction_answer_key.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://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlTibetanIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBADE 5416 bytes
SHA-256: 7381ab482503caab6d3b351192ab2ad8db2d3d8d6dac8ed2dce431575d8f88e6
font_01_sfnt_off0000cd29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD29 8976 bytes
SHA-256: 5f07b96a345167f8d597a4b3e1fe0e52dd7a62508af6f8e7b00de7561a89dfc4
font_02_sfnt_off0000deec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEEC 11396 bytes
SHA-256: c3b57be535b9c1daa22d9d2b01cda89693081c6237d13983b3bcc415c3b468aa

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