Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0e8f14d9850640…

MALICIOUS

PDF

73.8 KB Created: 2021-01-12 13:57:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 50aaac8890f2019678623dcb94f84dc2 SHA-1: 9ce808cde0482e0fc6fc82e54da91df4aeda6d72 SHA-256: 0e0e8f14d985064041590ca36623787386fb804a125bb3a492fcbd9681196b86
126 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous external links, many pointing to disposable domains, suggesting a link farm used for phishing or malware distribution. The presence of 'utm_term' parameters in some URLs further supports a phishing or tracking motive.

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
  • 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://trafftec.ru/aws?utm_term=mystic+messenger+chat+guide+deep+story PDF link annotation
    • https://site-1176454.mozfiles.com/files/1176454/lockheed_martin_missiles_and_fire_control_products.pdfIn PDF document text
    • https://cdn.sqhk.co/bibunifez/jcroSjc/sudoku_puzzles_hardest.pdfIn PDF document text
    • https://site-1168389.mozfiles.com/files/1168389/8881765176.pdfIn PDF document text
    • https://site-1166598.mozfiles.com/files/1166598/estreimiento_cronico_funcional.pdfIn PDF document text
    • https://site-1168052.mozfiles.com/files/1168052/48634877154.pdfIn PDF document text
    • https://xumolatakikekum.weebly.com/uploads/1/3/4/3/134335049/vivilus.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/nojof.pdfIn PDF document text
    • https://site-1168175.mozfiles.com/files/1168175/xemaxelijixofotaruz.pdfIn PDF document text
    • https://site-1166708.mozfiles.com/files/1166708/how_did_the_light_between_oceans_end.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/vifusupegiza/paradigm_high_school_orchestra.pdfIn PDF document text
    • https://s3.amazonaws.com/vikukinumet/liars_bench_brew.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/jijidawudelobovusabuzeju.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_off0000e1ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1FF 5564 bytes
SHA-256: 08973ff2428206100299fd24a1f1d5fa8832c322f4cea19dc206fbd31bfba9a2
font_01_sfnt_off0000f4cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CF 10936 bytes
SHA-256: 75e3318d94cc0f636e2b6385e7bd1b64f0dc201683499efe4f4063896e345c3e

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