Malicious PDF — malware analysis report

Static analysis result for SHA-256 e20e82c7f4a4525e…

MALICIOUS

PDF

71.4 KB Created: 2021-03-05 04:07:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 59f4525883b6b445c79ea60e86177e7e SHA-1: 63f2bd44ebbf2b8abadba82fc8c007e21d290684 SHA-256: e20e82c7f4a4525e6058788c66e8e2c684ccd9fe96f90ce1f8883e096984a432
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://xajibur.ru/wix?keyword=lindeburg+pe+civil+reference+manual PDF link annotation
    • https://mufisifarugevap.weebly.com/uploads/1/3/4/5/134595961/9447e74e.pdfIn PDF document text
    • https://bevizopet.weebly.com/uploads/1/3/0/7/130776142/8055523.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368952/normal_5fe89c039f10f.pdfIn PDF document text
    • https://pixerogamaba.weebly.com/uploads/1/3/1/8/131871590/5192188.pdfIn PDF document text
    • http://vasakuso.sportsontheweb.net/the_gospel_of_the_flying_spaghetti_monster_review.pdfIn PDF document text
    • https://cdn.sqhk.co/poxofufiko/iiEheC9/plan_control_claro_el_salvador.pdfIn PDF document text
    • https://cdn.sqhk.co/lekaguko/jdq4pXD/army_physical_fitness_standards_by_age.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456984/normal_5fe8c6cf48aba.pdfIn PDF document text
    • http://funusiwevig.22web.org/testout_network_pro_exam_answers.pdfIn PDF document text
    • http://gakagebir.mypressonline.com/14669343576.pdfIn PDF document text
    • https://noregodexu.weebly.com/uploads/1/3/1/8/131871467/vosaniwibip.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/52100795158.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452389/normal_5ffc1005f0b5e.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/YjiJaic/vanevafot.pdfIn PDF document text
    • https://lizuxafemow.weebly.com/uploads/1/3/0/7/130776517/dajepaso-jonuvub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410018/normal_6039abc79d143.pdfIn PDF document text
    • http://rujisuki.mygamesonline.org/62896127313.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://romezegipoxo.epizy.com/comprehension_passages_with_questions_and_answers_worksheets.pdfIn PDF document text
    • https://8860adff-7f0b-4cf3-a358-cdd560dff136.filesusr.com/ugd/625844_c2a6fad7093643d6936c6751ac4f2cc4.pdf?index=trueIn PDF document text
    • http://fijibiwuweze.rf.gd/is_ue_megaboom_2_waterproof.pdfIn PDF document text
    • http://regipikiwubadov.epizy.com/maths_addition_worksheets_grade_2.pdfIn PDF document text
    • https://ca7c05ed-d233-4774-9cf9-08ff86aa6c73.filesusr.com/ugd/b42fd6_57fadf68bf2b4434b02fbd937a468e80.pdf?index=trueIn PDF document text
    • https://183df7f2-4185-4ca0-bfcc-33b39bc842f1.filesusr.com/ugd/9ac34a_8e0a47c175c7491ca22d0d67ae250b3f.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_off0000d993.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD993 5436 bytes
SHA-256: 0498e38dcb9b134eae9c239fe8d6f84edc66aa48a17473f2244fdc2ddbdc7652
font_01_sfnt_off0000ec07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC07 10584 bytes
SHA-256: cbee2ecf1e63db95b5779dea9b1ff68805972642c68a39de5810653fbf1455f5

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