Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e64040f7081ab4b…

MALICIOUS

PDF

83.7 KB Created: 2021-06-08 14:49:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 2d1e420a33aef6c3be0cadbf2ea8afa8 SHA-1: ba5eaddc697acb04919bc76913b86e72abbde46b SHA-256: 3e64040f7081ab4b9f4390504457f1600c1ba9c5181290827cdd846338732797
194 Risk Score

Malware Insights

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

This PDF file is identified as malicious by multiple heuristics and a machine learning classifier, including ClamAV's 'Pdf.Phishing.Trojan' signature. It functions as a link farm, presenting numerous external links, one of which is a redirector for 'god of war 2 psp iso file download'. The presence of a link farm on disposable hosting suggests an attempt to obscure the true malicious destination, likely a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://huntic.ru/pbw?utm_term=god+of+war+2+psp+iso+file+download PDF link annotation
    • https://saxonolofazejel.weebly.com/uploads/1/3/2/6/132681209/debezujulu-wizoguxanejej-vezoz.pdfIn PDF document text
    • https://loputoporebile.weebly.com/uploads/1/3/4/8/134847610/livomasivu.pdfIn PDF document text
    • https://nolutoxut.weebly.com/uploads/1/3/4/6/134683805/sabuwive_wilebefilasupo.pdfIn PDF document text
    • https://xogosikeduvad.weebly.com/uploads/1/3/4/6/134669078/b8135.pdfIn PDF document text
    • https://jumosoguwakebak.weebly.com/uploads/1/3/4/5/134588816/fbe875d97dc4a46.pdfIn PDF document text
    • https://jixikasipad.weebly.com/uploads/1/3/4/5/134596843/a048631818d69d.pdfIn PDF document text
    • https://bidopafogusiw.weebly.com/uploads/1/3/1/0/131070115/ae084f8f9ffc7f1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://denipugo.pbworks.com/w/file/fetch/144617484/comprehension_passages_for_grade_3_cbse.pdfIn PDF document text
    • http://jedilukiwo.pbworks.com/f/ohio_child_support_calculator_50_50_custody.pdfIn PDF document text
    • http://buvulareka.pbworks.com/f/a_history_of_american_higher_education_3rd_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f694993-d444-41ce-82ce-626e2f650c3a/mini_militia_unlimited_bomb_old_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a8bd458-e56e-4def-a168-3a9e94bd9b1b/fikoxavu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6790306c-f03a-4d33-a5a2-f6918487ebd4/7936273278.pdfIn PDF document text
    • http://xuwuziz.pbworks.com/f/apology_letter_for_absence_in_college_due_to_illness.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d97e1224-c8d0-4cec-992c-d13e74889e8f/is_percy_jackson_a_real_demigod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ef651b8-3321-45e0-ab1b-2b9b34be67b5/68246703337.pdfIn PDF document text
    • http://kafunujazuwo.pbworks.com/f/the_world_record_paper_airplane_book_john_collins_free_download.pdfIn PDF document text
    • http://giribuv.pbworks.com/w/file/fetch/144543654/xedobonajuxegitomezuzis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/407ea5a4-9de2-45ff-8d59-0c57a1693499/46683564290.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e49b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE49B 5000 bytes
SHA-256: 46509e8b494cac61adc9ac4bc8d355bed42a003f80b172b94bc652536c0794f7
font_01_sfnt_off0000f5bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5BF 10212 bytes
SHA-256: 37020a25f1257a53cdc01f59b309a0bc67284377cd9c77059a76537beecd454b
font_02_sfnt_off0001190b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1190B 17112 bytes
SHA-256: 32e6e9f64ab709fe9cf35328b463d17dbcbe26f3fd6b72cf25a44e69ebf2fc60
font_03_sfnt_off00013170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13170 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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