Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc1bee36d7a17d98…

MALICIOUS

PDF

69.4 KB Created: 2021-03-02 13:30:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 638c4c0291dc14687822c33dd9924d04 SHA-1: 7c6cec6ceddd1858b6106dd6ece4a3a9ec6f3b9e SHA-256: fc1bee36d7a17d98b65d8b42dd541bdd0fb2e4bfe3597536bc399e2bf09e1570
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://leonvi.ru/wix?keyword=things+that+start+with+po PDF link annotation
    • https://porovepo.weebly.com/uploads/1/3/4/5/134527374/37ac127a46f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460045/normal_60084fddc2a70.pdfIn PDF document text
    • https://meliwuka.weebly.com/uploads/1/3/2/7/132740471/7798903.pdfIn PDF document text
    • https://cdn.sqhk.co/nufesewepi/hhct6id/dark_side_of_the_ring_season_2_hulu.pdfIn PDF document text
    • https://fenitejum.weebly.com/uploads/1/3/2/3/132302819/degitowudab.pdfIn PDF document text
    • https://cdn.sqhk.co/xolofiwano/ibjbFge/90743658697.pdfIn PDF document text
    • http://gamowenugeg.sportsontheweb.net/99561012090.pdfIn PDF document text
    • http://tijudozi.scienceontheweb.net/is_wolf_of_wall_street_on_netflix_or_hulu.pdfIn PDF document text
    • https://cdn.sqhk.co/dajuzafum/enWBNqt/8062216447.pdfIn PDF document text
    • https://parafobosa.weebly.com/uploads/1/3/1/8/131857791/lowefakurezalidimemo.pdfIn PDF document text
    • http://kinemulawaw.sportsontheweb.net/ribomajinugufirewepitelos.pdfIn PDF document text
    • http://reliables.ru/battle_chasers_guidebmty8.pdfIn PDF document text
    • https://kagukemo.weebly.com/uploads/1/3/4/8/134884413/1046835.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
    • http://rabatelekovufar.myartsonline.com/how_much_do_pr_managers_make.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_off0000c578.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC578 4760 bytes
SHA-256: 05fa55eb46c0f79cf043aaf29b83ed6e27b25b9446d1247e01a2be32aef4a633
font_01_sfnt_off0000d596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD596 10432 bytes
SHA-256: 29c1af1d4644ae2a1e153db6630efb00115138e07485e384e35f04320d68bcd7
font_02_sfnt_off0000f93e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF93E 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333