Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e711f819c55ccff…

MALICIOUS

PDF

103.2 KB Created: 2021-06-09 10:11:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3ef8e6753f6a5ac6bed9442ac8626934 SHA-1: e8e7f0364920f7365e6a50f223ff234a1e3e04a0 SHA-256: 4e711f819c55ccffb72506b414547804456f019e6bd6100d2f4d7f8a423b69fb
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file is identified as malicious by multiple heuristics and an ML classifier, including ClamAV's Pdf.Phishing.Trojan detection. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The primary lure appears to be related to finding movie streaming content, as indicated by the URL parameters and the document's metadata. The embedded links likely lead to further malicious content or phishing pages.

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://pistant.ru/pbw?utm_term=lady+and+the+tramp+1955+full+movie+123movies PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4408346/normal_5fe5f2ed865f5.pdfIn PDF document text
    • https://kimewazokedusa.weebly.com/uploads/1/3/1/4/131454536/vaperakonetamuxera.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378836/normal_60570e16d1aa5.pdfIn PDF document text
    • https://wimuwiberajiwas.weebly.com/uploads/1/3/5/9/135965043/sutawevosugevol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368748/normal_6043db2ea88dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407087/normal_60bb086971bb5.pdfIn PDF document text
    • https://boretenewur.weebly.com/uploads/1/3/1/4/131453221/4614949.pdfIn PDF document text
    • https://jixepelisu.weebly.com/uploads/1/3/2/6/132695865/5e2b22293a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454679/normal_602ab99f21d52.pdfIn PDF document text
    • https://jeximikukadolo.weebly.com/uploads/1/3/1/6/131636734/zekogotowat_xonogoxopi_pojet_tagazovubarur.pdfIn PDF document text
    • https://feverawujebuv.weebly.com/uploads/1/3/5/3/135314909/78ec6bf9.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/e95d8685-38e6-47b4-ae10-5b6424c67bca/use_the_idiom_dead_to_the_world_in_a_sentence.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47214667-fd5a-4882-a906-e81c66a5635d/how_to_do_arabic_calligraphy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21a0cc9b-54a1-43e7-95a6-5f9999ea8068/75335862484.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/804a9b51-4c88-4679-8872-1835d04ad1c4/solutions_pre_intermediate_3rd_edition_tests.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa8ae94c-fa7d-45e9-81fc-0925e7114586/short_summary_of_the_way_to_rainy_mountain.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/647a83b6-048a-4648-9cea-051c1834e09b/the_vietnam_wall_poem_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/009aebb6-befd-4801-8b78-9ad9d8081890/what_are_the_characteristics_of_gothic_style_buildings.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2aacb53f-aa51-4dff-b447-9d5de013af11/jadituraguxetuvarebomo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27551452-86c0-435e-9bb3-8d32dc80bb22/elements_of_poetry_powerpoint_presentation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbaffb3f-1e68-43d8-8fbc-1d47689f0762/27557169861.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ead82697-4cc3-42cf-b56c-5a80e8c93730/41889352139.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_off000152eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152EB 6012 bytes
SHA-256: 563f7bd1a11a6e3ae6e2c5d865429a7eac33aad43fbddab73becbc37ba823161
font_01_sfnt_off00016754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16754 11760 bytes
SHA-256: 328dfca6d59d055fada4b6fc5c7a1202d4756d811d1ce0fcef6b619df1b7de15

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