Malicious PDF — malware analysis report

Static analysis result for SHA-256 97862a79c5015b5e…

MALICIOUS

PDF

69.3 KB Created: 2021-03-09 19:14:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 752396c1a2f9fc3875138135acee4ae3 SHA-1: 4e9c15df75f503aee8ca6d7ab25dd3ebe2097727 SHA-256: 97862a79c5015b5ed38ea0a87aa9bdabefb10e80173788879a1fd072251024de
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/award?keyword=agri+informatics+book+pdf PDF link annotation
    • http://labifovejes.mypressonline.com/38605000942.pdfIn PDF document text
    • http://gotexewadegu.iblogger.org/sikosamivezafusevaw.pdfIn PDF document text
    • https://zapedumukovig.weebly.com/uploads/1/3/0/7/130775012/ef68691115.pdfIn PDF document text
    • https://rotalexabif.weebly.com/uploads/1/3/1/3/131381819/fenozumipa_nibebowo_rupasa.pdfIn PDF document text
    • http://zobotalemogi.sportsontheweb.net/zajemokeb.pdfIn PDF document text
    • https://zonebudufekepok.weebly.com/uploads/1/3/4/3/134382159/gabisazak_tujisegozozivob.pdfIn PDF document text
    • http://lakujalinifibo.mypressonline.com/what_are_the_8_parts_of_speech_with_meaning_and_examples.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/56150302038.pdfIn PDF document text
    • https://bawokotofebadu.weebly.com/uploads/1/3/4/5/134507933/nirer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/54c2ac92-ea5b-4620-80f3-8dc746f74497/what_are_text_signal_words.pdfIn PDF document text
    • http://pudolajuji.atwebpages.com/6437689876.pdfIn PDF document text
    • http://ladisopezaxak.epizy.com/zinisipubizopejekox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/904fd00e-84f0-4f25-a950-ee439df866e8/43093295129.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a034621-c89d-4629-b943-45d454f48c63/bofoditowekuvofiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb4925bd-00a7-4db0-9d1b-4c7f7708690c/adobe_after_effects_cs6_tutorials_for_beginners_free_download.pdfIn PDF document text
    • https://7835c217-6b95-46a1-915a-76cdebae3fe0.filesusr.com/ugd/debfb4_fea7e10b0bf94e9a8d696762b09a57b0.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/76d72b88-ee3a-4d59-9db9-8c6bc966e600/old_fashioned_love_bob_wills_chords.pdfIn PDF document text
    • https://367e539a-c541-4439-991c-4bf2bef2aa7a.filesusr.com/ugd/77d535_0fd7afc0d469459484a1289c9b234865.pdf?index=trueIn PDF document text
    • https://2386e270-bd20-42c1-b3e5-1ba7eaa1d68d.filesusr.com/ugd/b4f0c6_a0e187eaec49410f94fbc8ebfd88ce53.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/425cfbdb-9195-4bea-90ab-fdf7d9d9702f/gotusujanodebunetafuluva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09b6b4ad-b477-4576-bca2-96c696c088b5/lodge_cast_iron_recipes_for_chicken_pot_pie.pdfIn PDF document text
    • https://63aa7d51-6c54-48cc-ac87-b710a0da19c3.filesusr.com/ugd/c8d394_c3cf56e6831543b5adb2ce206365dffc.pdf?index=trueIn PDF document text
    • http://zuzeburim.epizy.com/88340973022.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_off0000d295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD295 5636 bytes
SHA-256: 77dc743656d7ef51166565fb9ab02f42ddc60d7a7310eb0f627cc8e7c46ec1ff
font_01_sfnt_off0000e5ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5AE 9984 bytes
SHA-256: 3204fef3b2ded102c884500b1aab76b4bf7ccab1e47d8e01f0e03d2961445a44