Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1cf49d1f858eb5c…

MALICIOUS

PDF

66.9 KB Created: 2021-03-04 22:29:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3c8f7101af244493a9ec037539fe9656 SHA-1: 53c21f5f949bef921deaf056b2968e4b7f8d8c0f SHA-256: e1cf49d1f858eb5c6bce8b3aa77414da3bef25a53c6833167e41c00d26544ebe
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • 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://dugedepap.ru/award?keyword=pals+patty+melt PDF link annotation
    • https://pemugaladesav.weebly.com/uploads/1/3/5/3/135307247/kaxekadiwonemot.pdfIn PDF document text
    • https://cdn.sqhk.co/mogudekusab/Mghjhgf/70961293426.pdfIn PDF document text
    • https://fujulisu.weebly.com/uploads/1/3/4/0/134042697/4691111.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411932/normal_5fe4ee91089e7.pdfIn PDF document text
    • https://jipuziloki.weebly.com/uploads/1/3/2/6/132695969/sitojefumewini_detiv_nazige.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407788/normal_5fd9631f03052.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367287/normal_602f8082e93f6.pdfIn PDF document text
    • https://cdn.sqhk.co/xejexeremiso/f2Lf9uL/59662401779.pdfIn PDF document text
    • http://urro-hu.com/93456526120hi0ls.pdfIn PDF document text
    • https://sinekaku.weebly.com/uploads/1/3/5/9/135964305/sovuburigate.pdfIn PDF document text
    • http://salopkisa.website/facebook_timeline_cover_size_photoshop_templatepbrvd.pdfIn PDF document text
    • https://cdn.sqhk.co/xenotami/djegdsG/kutamow.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/JV1ier8/69842914941.pdfIn PDF document text
    • https://jaragamonobuwuf.weebly.com/uploads/1/3/5/3/135346236/979912361a6961.pdfIn PDF document text
    • http://mazers.fun/narogajalezerukewuviwaku6ze32.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8ac5c8e1-9174-427d-95c2-90bebb9f105a.filesusr.com/ugd/44b221_8a882fbabcfd464794af940947a5bd04.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a643b8cd-41f1-4c4e-9042-7cc9824887a5/little_red_riding_hood_movie_disney.pdfIn PDF document text
    • https://df1882fa-13c5-42f1-8438-577935b594b9.filesusr.com/ugd/91932b_0648028210d4473c96ce73b4ad18409e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/52d42a3f-fcef-4ed8-8772-6b55eeec82a5/vivitar_mini_digital_camera_with_accessory_kit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bb0cf8a-05ec-4e7e-9aeb-5cb8400db750/how_to_open_a_wells_fargo_brokerage_account.pdfIn PDF document text
    • https://d52aed46-be45-4f9b-8106-cf6fc7ee66c0.filesusr.com/ugd/b148e5_c27fdb10898a41be91d51674d37f630f.pdf?index=trueIn PDF document text
    • https://113c517c-d7b0-4b36-99d7-6722bcb7ef36.filesusr.com/ugd/8e66a5_567452a859e04bf8978416317b1074d4.pdf?index=trueIn 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_off0000cb1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB1D 4972 bytes
SHA-256: f6130e229e690c493c9ed84272358db4a4ce916dd810a4212888e6d1f1f66037
font_01_sfnt_off0000dc02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC02 10092 bytes
SHA-256: 03265b87bceba5c3fe463c85aae05ca9d2cb5b642da5b4dcfd6e8843f455d6d8

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