Malicious PDF — malware analysis report

Static analysis result for SHA-256 5836995318e63f47…

MALICIOUS

PDF

79.8 KB Created: 2021-04-25 20:00:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 7ac8aef5e82648d49a21b7bd39981e9b SHA-1: 7e07eeeb38ae9a1f853d6ff698d82fba491358e6 SHA-256: 5836995318e63f477031b79d13b63e86cec23052997a11ac923fe0ccbac97992
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body, though heavily obfuscated, contains text related to product pricing, potentially used as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://fokemale.ru/strik?utm_term=infinix+note+7+price+in+india PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380086/normal_6016134fab713.pdfIn PDF document text
    • http://abanca-electronica.com/why_isnt_procreate_on_my_app_storeazjog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488130/normal_600eafa35fa25.pdfIn PDF document text
    • https://digokevun.weebly.com/uploads/1/3/4/7/134747151/bbd1e2.pdfIn PDF document text
    • http://useporte.xyz/2401908656gfvx9.pdfIn PDF document text
    • https://kezugefoluvero.weebly.com/uploads/1/3/1/8/131856244/32f41e8.pdfIn PDF document text
    • https://rinotawobuv.weebly.com/uploads/1/3/4/7/134768279/9eacb6f6ef590.pdfIn PDF document text
    • http://investorlands.ru/ruxasorogafk61k5.pdfIn PDF document text
    • https://xananitape.weebly.com/uploads/1/3/4/0/134095977/logeloxoxeleworikaba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376598/normal_601b7b6e6489c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388835/normal_605581afb3e02.pdfIn PDF document text
    • http://kusulapezep.iblogger.org/23884344359.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://d992f69e-bc5b-430a-92d7-abfd66d0380b.filesusr.com/ugd/6f7357_246d2af5668547a4b80cb227a67245e0.pdf?index=trueIn PDF document text
    • http://migisunutejelu.rf.gd/16771886178.pdfIn PDF document text
    • http://fonumorawupako.epizy.com/61642779676.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/61e7fd1b-e985-480d-8438-80e716bc7512/82246702877.pdfIn PDF document text
    • https://835a0401-7144-467e-aacc-710587930ffc.filesusr.com/ugd/432cba_561c835874f74c1098bc66d96be47ca1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c4647a9-5631-4b34-8339-439a24771bc6/how_to_reduce_pimple_marks_at_home.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28cfc770-9820-4c63-9d57-e9f06c9fc81d/27368205989.pdfIn PDF document text
    • http://mutifesojare.epizy.com/69270238752.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8c590b0-8954-45d9-bf89-7a295aa560f6/quadratic_equation_examples_and_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d973884d-180c-400b-a444-f605a6ea4a4c/graphic_design_bookstore_london.pdfIn PDF document text
    • https://a815f367-2516-4b88-9496-eed07d5c1eb7.filesusr.com/ugd/665c20_2bfaf0f904cd438c985266263b0eeaa5.pdf?index=trueIn PDF document text
    • http://niforubuduxema.epizy.com/13421462292.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_off0000fb79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB79 5024 bytes
SHA-256: 201337f846ef86d8881776acd0bacfb5b091b13861bfb23a3c43bff7bf4e72ad
font_01_sfnt_off00010caf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CAF 10904 bytes
SHA-256: c267b1e6a99b4afab23968726610918b75ecaee0e97ed086908b95a1166dcc48

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