Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbd062f318082645…

MALICIOUS

PDF

95.5 KB Created: 2020-12-28 04:21:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: bb308b6a87d47f992d7e4b43ff2cbe01 SHA-1: d275aa252a47e11ad9e038ecd3e4f1a82474aa48 SHA-256: bbd062f318082645b6b6392d424a5d8e6372faffdbe1a811cea39bbb9b447df9
214 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious websites, masquerading as a real estate agent introduction letter. The presence of multiple links to external PDFs and a known malicious redirector indicates a phishing or scam attempt. Although no scripts were directly extracted, the PDF structure and embedded links strongly suggest malicious intent, likely involving the exploitation of PDF vulnerabilities or social engineering to lead users to compromised sites.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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=real+estate+agent+introduction+letter+sample In PDF document text
    • https://topifovav.weebly.com/uploads/1/3/4/5/134595147/vizatonoriv.pdfIn PDF document text
    • https://kupanonul.weebly.com/uploads/1/3/4/6/134682697/nujolabunef_sovevamuzuri_xuwaxesasiw_magosezogife.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/gcChdjf/32988759846.pdfIn PDF document text
    • https://tolafapod.weebly.com/uploads/1/3/4/4/134486806/f03cc15ee29633.pdfIn PDF document text
    • https://pigumetazemebet.weebly.com/uploads/1/3/0/7/130775485/5d411.pdfIn PDF document text
    • https://cdn.sqhk.co/podiwilur/iAJdNji/mogokasuzitojumekewekuv.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/d9d0d13d-bc47-4f64-91f6-e8375eee6bb9/23468783611.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab1eb8ff-8374-4321-aa5e-28b020c79122/sodasipobimuwobafomimoz.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/performance_appraisal_biases.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/568d0c35-d6e3-4830-a29d-607a03e9b3b1/mega_man_x_2_game_genie_codes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/671b8498-b22f-4712-8622-1038504f60df/the_communist_manifesto_english.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65f0c834-71ed-48ea-95ec-e3e1e343c2a6/oz_the_great_and_powerful_movie_in_h.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cbb3534-7cea-43d1-a44e-2019ca4b79df/39804631534.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/gusikilokomujimaba.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011aa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AA4 8512 bytes
SHA-256: 33925dd632d0e5cd414da6a69a7e96b0cfb7f12f743c6413468f4b4ae4d1f813
font_01_sfnt_off0001365c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1365C 5400 bytes
SHA-256: 7f05a1bfbd773273a2e08c5fc11d66e983fa5f595f08c32fc770a70323d79c9c
font_02_sfnt_off000148a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x148A5 11744 bytes
SHA-256: 38fcc7998703eaf77bd13101e72bda669d68d61b9ead7904dbcb70ada2a2cd57

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