Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d30d2aad3a39e3…

MALICIOUS

PDF

86.7 KB Created: 2021-03-10 00:02:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: abc930b42cde3ac40e9a84aa1e8bc5db SHA-1: 14b2c56778130622987e5e20ea0c13f58c46c8a6 SHA-256: 06d30d2aad3a39e3783c3b7e12b0e3a0e2f975b282a1e1cc0b3b82a0402901cc
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and ML classification further supports malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristics indicate it's designed to redirect users to potentially malicious or phishing websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • 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.
  • 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://maypoin.ru/strik?utm_term=bohemian+rhapsody+sheet+music+piano+solo+free PDF link annotation
    • http://vogeposekuxav.66ghz.com/lugarivagorunapuvigilosu.pdfIn PDF document text
    • http://usene.xyz/the_shining_book_movie_differencesb2i65.pdfIn PDF document text
    • https://zomoxiwoginu.weebly.com/uploads/1/3/1/6/131637743/lugetixori_risoguxo_dizibolivedozo_bojawe.pdfIn PDF document text
    • https://lezexoxutipeb.weebly.com/uploads/1/3/4/4/134462335/punopepere-padirag.pdfIn PDF document text
    • https://galezarulunozip.weebly.com/uploads/1/3/4/8/134896955/6476996.pdfIn PDF document text
    • https://zitakafe.weebly.com/uploads/1/3/4/5/134587302/8178913.pdfIn PDF document text
    • http://sarhello.online/natofofupukonorvpd05.pdfIn PDF document text
    • https://guxedujigizos.weebly.com/uploads/1/3/4/7/134735137/1752501.pdfIn PDF document text
    • http://compte-cmbretagne.best/jailbreak_4._2._1_without_computermlq48.pdfIn PDF document text
    • http://dkblogin-de.best/kugivizudotigogumitafoacaz1.pdfIn PDF document text
    • http://nalomojup.22web.org/film_festival_submission_guidelines.pdfIn PDF document text
    • https://pezulotum.weebly.com/uploads/1/3/1/4/131483557/7256792.pdfIn PDF document text
    • http://nukobom.22web.org/multiplication_table_worksheets_6-9.pdfIn PDF document text
    • http://help-nanny.site/vazazajojuvekokewokux21.pdfIn PDF document text
    • https://keregejuvuja.weebly.com/uploads/1/3/4/3/134345288/3ca13329.pdfIn PDF document text
    • http://whysmall.space/uefa_champions_league_team_of_the_season_2020yhiy5.pdfIn PDF document text
    • https://xomevore.weebly.com/uploads/1/3/4/3/134346529/telegagibi.pdfIn PDF document text
    • https://deluwibenarut.weebly.com/uploads/1/3/1/3/131382693/gekotanewukito.pdfIn PDF document text
    • https://dulebolipema.weebly.com/uploads/1/3/5/9/135997598/lonalesegenedupo.pdfIn PDF document text
    • https://kakowafalajoji.weebly.com/uploads/1/3/4/4/134455686/0b9f8da4bbb.pdfIn PDF document text
    • https://zubenori.weebly.com/uploads/1/3/5/3/135394140/lasajutugajixu.pdfIn PDF document text
    • https://nofefikow.weebly.com/uploads/1/3/4/5/134510094/543aab9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ligexaxo.epizy.com/29825398501.pdfIn PDF document text
    • http://xakafof.rf.gd/order_bed_sheets_online_dubai.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001000a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1000A 5544 bytes
SHA-256: cc94482af5ae3cc277b1ddd62d01c0e3bfc1f5d3b2e683ba51d5edcfe1c95a88
font_01_sfnt_off000112c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112C0 10908 bytes
SHA-256: 2ba16b48bb0cc398e1363df4fd2b2e79ee4ef4c6ae0a6c0cc840bf53a29807c9
font_02_sfnt_off000137e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137E4 16100 bytes
SHA-256: b330339415d7fa9c1b652c1fb2a052ec06569061b7b71506ab53161dc9b94742