Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c1643aab8d37702…

MALICIOUS

PDF

43.1 KB Created: 2020-10-22 00:01:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 47cdacbb6df94103c730346e9bbfd6a2 SHA-1: e2ce504647bcf5bf895ad6bb98af47beb32873e8 SHA-256: 8c1643aab8d3770291b2236fc97ee929bca7a960feb3bcb4b8f30ce663477ac3
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 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.
  • 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://gettraff.ru/123?keyword=kidde+fire+detector+manual In PDF document text
    • https://porelananov.weebly.com/uploads/1/3/0/7/130775759/bekabasuref-rexokaxu.pdfIn PDF document text
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/jifotu-pupisolimiwew.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/f98e4374.pdfIn PDF document text
    • https://dokakida.weebly.com/uploads/1/3/1/3/131380589/riletibetumopik.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366956/normal_5f88964694334.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366987/normal_5f87587ebb719.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381294/normal_5f8e756736c84.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/xefejevife/99402662328.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/55386682893.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/mendeley_desktop_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/55588997477.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4bf67fa-6180-4c87-b7f8-a120a9dbe491/wiwefajuvemotivabal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05f59f46-42af-4f65-b5d4-1ce151c85a9f/boss_jam_station_js-5_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86d4065d-7850-4609-859e-d5823b2a7af7/wusosazikudulivofunovo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b4142e1-1c1c-48c7-b626-0ab57d043dbe/19142542084.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bbc7b8f-4c24-4eac-8621-cf5a904781e9/tarjetero_calculo_mental_primaria_si.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48b913db-365e-4f21-aa61-09cd14502733/vulafagibajiwemovuleg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/197a4603-e321-49ed-a130-db3fb19510d7/52324943180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8875/4341/files/ligaduwiveredugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/3879/1582/files/dream_girl_movie_mp3_song_download_wapking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3543/8499/files/target_pasar_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/77383972960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1288/2071/files/object_pronouns_worksheet_for_grade_3.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_off0000615d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x615D 4956 bytes
SHA-256: c46af549bceb583acab9ce9cb2aaa54dcdbd84c19a666a44124197d4eb8cd07d
font_01_sfnt_off0000721a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x721A 13892 bytes
SHA-256: 1beb68e9023b565d047a2cafb023b7960198985302125bac965a4b453ea99571

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