Malicious PDF — malware analysis report

Static analysis result for SHA-256 4072704e0477c449…

MALICIOUS

PDF

65.1 KB Created: 2020-11-19 08:08:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: d6368f2ca158c1837efb65b534679232 SHA-1: 191fb31673133b1159f3741ab4c82a72b22b87de SHA-256: 4072704e0477c4491ebc5b291cec125dcb32350b082f8872a96b66af69bf8427
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a technique often used for SEO poisoning or phishing. One prominent URL, 'https://trafficel.ru/strik?utm_term=sacred+symbols+of+the+ancients+edith+randall+pdf', appears to be a malicious lure. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/strik?utm_term=sacred+symbols+of+the+ancients+edith+randall+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417659/normal_5f9fb2b6b76f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408483/normal_5f971b2ca24fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366665/normal_5f97980a94491.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421039/normal_5f9941fb8a2d6.pdfIn PDF document text
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/gurelutujerun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458125/normal_5fada9de1ac02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383692/normal_5f94d90cb8f01.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
    • https://s3.amazonaws.com/tujeviwakirawu/40505264982.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/realistic_minecraft_texture_pack_1.13.pdfIn PDF document text
    • https://s3.amazonaws.com/lanowilovuviwib/handmaid_s_tale_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/287edd0e-1055-468f-aaa2-a78c753d66ba/3901903579.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/maynard_high_school_mass.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1104d64f-34c1-4aef-8220-20e00cb7858c/zupokogadab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b573f1b6-0f49-4b68-8990-b98d85028a6c/dosoxaginagaf.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/43241533177.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb96137d-64cd-4941-9c79-ddc472aed8fa/74219829312.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_off0000b401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB401 5528 bytes
SHA-256: 3337f3fad8cb74cf23beefcd7962c43fa0f460c644ff85d4893f16ae4036679a
font_01_sfnt_off0000c696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC696 10196 bytes
SHA-256: 620cb400d0bd3c0b802fb666ee07a2dbceb02999a48798e443ed2c6a87b89690
font_02_sfnt_off0000e945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE945 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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