Malicious PDF — malware analysis report

Static analysis result for SHA-256 e868cf88a7240906…

MALICIOUS

PDF

71.1 KB Created: 2021-03-02 04:46:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3ff90a41ade30afff2157c536c4b16f8 SHA-1: fb051539f0ea368c4ad71d0c244429c85636cd03 SHA-256: e868cf88a7240906b8fc874b5ecab71f69d0c7cdc3e5703e12caac0265d5e05f
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://druttle.ru/wix?keyword=acls+provider+manual+pdf+2016 PDF link annotation
    • https://tonilawug.weebly.com/uploads/1/3/4/6/134652309/730e5d.pdfIn PDF document text
    • http://mobeditobaxul.scienceontheweb.net/2020_starcraft_mossy_oak_ultra_lite_311bh.pdfIn PDF document text
    • https://jevefelenop.weebly.com/uploads/1/3/0/7/130775498/buxebanufoxudut_xobiletevili_rikotuki.pdfIn PDF document text
    • http://defokozixeral.sportsontheweb.net/after_3_anna_todd_english.pdfIn PDF document text
    • http://madoxorijegobe.sportsontheweb.net/bemokuxoduf.pdfIn PDF document text
    • http://dizititakozazi.mywebcommunity.org/29551556760.pdfIn PDF document text
    • http://fudoviwil.mywebcommunity.org/is_the_2017_honda_pilot_reliable.pdfIn PDF document text
    • http://midikakuvekume.mywebcommunity.org/what_are_the_four_types_of_motherboards.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497697/normal_5ff63093d1f1e.pdfIn PDF document text
    • https://kosodakugup.weebly.com/uploads/1/3/4/6/134655388/bumidetikitusabe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382429/normal_5feee599a31c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369493/normal_601ac931dcddf.pdfIn PDF document text
    • http://gakarefutejet.iblogger.org/99491868335.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456667/normal_6030152b8bff0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374860/normal_601ed1d005496.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/lunojol/92963930022.pdfIn PDF document text
    • https://s3.amazonaws.com/bulalowisu/6391464198.pdfIn PDF document text
    • https://s3.amazonaws.com/sorapobuk/staff_appraisal_forms_child_care.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA00 5632 bytes
SHA-256: 2f48a1f39c0ffbf666c81b0ea28cd521e0680c048040d3eb13f27e8392afc1ea
font_01_sfnt_off0000dd12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD12 10140 bytes
SHA-256: 41e3f800216c2c3eaadaef74468afc91518fe0f85b43b072a415918c261e208b
font_02_sfnt_off0000ffd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD7 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3