Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eaabf188f2f5e53…

MALICIOUS

PDF

74.8 KB Created: 2021-05-26 01:11:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: e27368c11ae173c980633bf4464c8c8c SHA-1: 8075462fcec2eb9e5c54f8452347ecc7f84a4bf6 SHA-256: 6eaabf188f2f5e5344dc7b68cde064bc18a5abdba16ac741d0bcbc375460018e
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for phishing or distributing malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of embedded URLs and the 'PDF_SEO_LINK_FARM' heuristic suggest the document is designed to redirect users to malicious sites, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://dugedepap.ru/strik?utm_term=harry+potter+y+el+ni%25C3%25B1o+maldito+pelicula+2020 PDF link annotation
    • https://rixajijinuroje.weebly.com/uploads/1/3/4/4/134473879/pujekigewijuloput.pdfIn PDF document text
    • https://satalediveli.weebly.com/uploads/1/3/4/0/134018026/jivojofudidetamefeg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450260/normal_60337e12b13a5.pdfIn PDF document text
    • https://selilanabos.weebly.com/uploads/1/3/4/8/134875664/sexajap.pdfIn PDF document text
    • https://vamekatowozi.weebly.com/uploads/1/3/0/8/130814347/suzazuvikuvip_zevomimu_zinara_wiwekaf.pdfIn PDF document text
    • https://bukolugupizokaw.weebly.com/uploads/1/3/4/8/134862081/5a9093a6be.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496204/normal_60302bc5dc4ba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/how_to_type_alpha_on_mac_in_word.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/block_site_android_phone.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/10931084666.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/57048510826.pdfIn PDF document text
    • https://s3.amazonaws.com/xupovobejanam/3931300910.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/hp_laserjet_p1006_ink_cartridge.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/96105176083.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/la_arqueologa_del_saber_michel_foucault.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/19684302713.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/remanorikisuvosubevag.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_off0000e5e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E1 5588 bytes
SHA-256: 8595a2b8ccb6636dc8e2fd89da659d662c44cb3de0f63e169acb39a8198c9f75
font_01_sfnt_off0000f891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF891 11480 bytes
SHA-256: 4c56d2edd1c0fd9145c6b73a3d245582a33f88358856de443b6d870bbea86420

Open this report in the interactive analyzer, or submit your own file for analysis.