Malicious PDF — malware analysis report

Static analysis result for SHA-256 00778dd138b16673…

MALICIOUS

PDF

70.3 KB Created: 2021-03-01 07:22:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a19127c754eaf2b09d600bee6713f554 SHA-1: 34d9c8a046415fafad753d44674ade79df9749e9 SHA-256: 00778dd138b16673c2b797ff97f7ffaff908cc9288b6c536e3c547ffc8d28c01
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wix?keyword=ucsd+ece+250+spring+2019 PDF link annotation
    • http://dizurexemubegog.mygamesonline.org/42579772641.pdfIn PDF document text
    • http://ukrinsure.com/phpspreadsheet_generate_csv37hh0.pdfIn PDF document text
    • http://pipvip.ru/29294087806sw2z8.pdfIn PDF document text
    • https://tatabano.weebly.com/uploads/1/3/4/8/134850833/8342546.pdfIn PDF document text
    • http://fruitslope.online/aakash_aiats_test_2_answer_keymfgdr.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/what_is_an_example_of_imagery_in_the_raven.pdfIn PDF document text
    • http://reduslim-ufficiale.website/the_human_centipede_full_movie_hdpx7ey.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369905/normal_5fcf00a393237.pdfIn PDF document text
    • https://tibufidis.weebly.com/uploads/1/3/0/7/130740046/e9828e84175e4.pdfIn PDF document text
    • http://gojawufeki.getenjoyment.net/junesupuloporilakebenu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470035/normal_5fdec9217cc99.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495065/normal_5fca12732317b.pdfIn PDF document text
    • https://golotarati.weebly.com/uploads/1/3/1/8/131856611/79f015f4283.pdfIn PDF document text
    • http://xosubowavenu.mypressonline.com/formulas_para_calcular_area_volumen_y_perimetro.pdfIn PDF document text
    • http://tophomework.space/calculus_early_transcendentals_sullivan_miranda9b0c6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dakafatuvuguviz.atwebpages.com/91614185498.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_off0000d705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD705 5596 bytes
SHA-256: 5d5c52bd586c8fe5a72f514dd80263a8e891f7a90b549d6c12d64597bc601a07
font_01_sfnt_off0000ea29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA29 10136 bytes
SHA-256: e135a64b851652b89df80e1219689b6ab8134d45c8c9a61cb7bafa6a900a7118