Malicious PDF — malware analysis report

Static analysis result for SHA-256 949476e96f6567ac…

MALICIOUS

PDF

66.3 KB Created: 2021-03-02 02:42:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2a570dc3b72302ee44bca416dac924a4 SHA-1: b5fd3eac623ba17f27aba28ba1dd548bec4472df SHA-256: 949476e96f6567ac0da247783d486dc7ee79c7820a0bb6a2e5c2d1c46ca8fb5d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/award?keyword=vizio+model+e60+c3+screen+replacement PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4456999/normal_603d759c1bd13.pdfIn PDF document text
    • https://cdn.sqhk.co/lojosexotak/bpshdia/89732474218.pdfIn PDF document text
    • https://gorofegi.weebly.com/uploads/1/3/4/4/134462705/detisokamaz-goraj-fimip.pdfIn PDF document text
    • http://zomolejefej.mywebcommunity.org/9890722020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426277/normal_6037f1b6b81bf.pdfIn PDF document text
    • https://cdn.sqhk.co/xewebevij/GUhi3pB/kuxizanosevozidizomewaze.pdfIn PDF document text
    • https://cdn.sqhk.co/sebutarukaw/ihbjebt/amazon_prime_music_app_stops_playing.pdfIn PDF document text
    • https://bupimapigi.weebly.com/uploads/1/3/1/3/131383283/foletixixekulera.pdfIn PDF document text
    • https://cdn.sqhk.co/pikukafil/igAbQLj/lightroom_ipad_tutorial.pdfIn PDF document text
    • http://dadosib.22web.org/personality_and_charismatic_leadership.pdfIn PDF document text
    • http://kugoramex.iblogger.org/87789743972.pdfIn PDF document text
    • https://vadopesi.weebly.com/uploads/1/3/0/7/130738994/a62c7e06e17fe9.pdfIn PDF document text
    • http://kutatit.getenjoyment.net/logitech_f710_driver_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/fitujejoxikojelisojexo.pdfIn PDF document text
    • http://kedisijusa.onlinewebshop.net/telugu_law_books_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/annotated_bibliography_format_website.pdfIn PDF document text
    • http://tufeguji.epizy.com/nudivuvokiropomobi.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_off0000c961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC961 5696 bytes
SHA-256: 80c2e94ce7f5a7a7d148b32d56461f8f3da0255e7b9468aec146e4301f42317a
font_01_sfnt_off0000dcac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCAC 9296 bytes
SHA-256: 6c2b38fccba9e60b924acd2580299cc2657962403182e23590e7bab6cab7f31e