Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe22fa4085bfc78e…

MALICIOUS

PDF

73.8 KB Created: 2021-03-01 12:16:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 705fb245be830badf3ea4848b87aea42 SHA-1: eedd3627aac60c8afcead3cf3c87afbed0e5703a SHA-256: fe22fa4085bfc78ebff027d99ef5c7e95642f4a73b3ddc8d77bf76893ffe4f62
184 Risk Score

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/award?keyword=psalm+23+1-4+catholic In PDF document text
    • http://sfhgfje5df.xyz/cruise_royal_caribbean_international_stock_priceyl4xv.pdfIn PDF document text
    • http://cosmosqrab.online/where_is_the_ip_address_on_a_canon_ts3322_printerlv4ys.pdfIn PDF document text
    • http://doxalasi.mywebcommunity.org/60483852510.pdfIn PDF document text
    • http://djami.ru/blood_relation_quiz5hjgm.pdfIn PDF document text
    • http://stavki-na-sport.site/salvatore_ferragamo_shoes_size_guide7rr9l.pdfIn PDF document text
    • http://cybety.xyz/what_do_economic_loss_meandbpgk.pdfIn PDF document text
    • http://help-nanny.site/46978223384vmbxo.pdfIn PDF document text
    • http://thepropheticapp.com/9217332591vcns9.pdfIn PDF document text
    • http://stankoff.org/kilograms_to_grams_conversion_worksheetaim56.pdfIn PDF document text
    • http://jiteruruw.sportsontheweb.net/koputif.pdfIn PDF document text
    • http://copyright-rules-help.com/tasco_trail_camera_8mpp9k6n.pdfIn PDF document text
    • http://coolstudent.space/voyage_of_despair_clocks_guide43a1v.pdfIn PDF document text
    • http://nopotaz.medianewsonline.com/what_are_metric_measurement_units.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/wujanozo/24502163918.pdfIn PDF document text
    • http://tibelobal.epizy.com/rampage_v_extreme_10_edition.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_off0000e2fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FE 5412 bytes
SHA-256: 6c2cba1fc5d36a55f523b4ed4c0900b8c37e4a3ff925432f3fcf5fe3b1e539c5
font_01_sfnt_off0000f556.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF556 11424 bytes
SHA-256: 65e14f14b6a934c431a7bd8fabf6b8a44d7eae23a9228eb01becb1941af13888