Malicious PDF — malware analysis report

Static analysis result for SHA-256 9208c65e35277a84…

MALICIOUS

PDF

74.3 KB Created: 2021-02-26 05:55:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 13c65f6d4d284ca02a90c3c291b4e667 SHA-1: 56abd30c0e99c00407099f485e4457162ddc4a83 SHA-256: 9208c65e35277a845da685259d885d14d7237673fee4c7c406ac379298c1f2b1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/aws?utm_term=is+acetic+acid+stronger+than+carbonic+acid PDF link annotation
    • https://cdn.sqhk.co/tebolugex/ZhiKEoN/jizijomexulanuz.pdfIn PDF document text
    • https://rosanibo.weebly.com/uploads/1/3/4/8/134873488/wisopemixis-terugeduzuzot-zajelagoxisum-fubego.pdfIn PDF document text
    • https://tiwebusimevadeb.weebly.com/uploads/1/3/5/3/135346158/29e270.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366639/normal_5ff662b1daa73.pdfIn PDF document text
    • http://viwimewi.22web.org/5672789066.pdfIn PDF document text
    • http://zerkalo-fugicar.website/investigative_reporters_and_editorso4kmz.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxonewebuke/rhajfhj/dunkin_near_me_directions.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393035/normal_5fc89f2ddf99b.pdfIn PDF document text
    • https://cdn.sqhk.co/lerapuraroke/gvYjiyC/top_10_music_charts.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503279/normal_601e985f2da40.pdfIn PDF document text
    • https://cdn.sqhk.co/vawikepaf/iV0ichd/eye_coach_pro_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/ferobisuw/b37fy5R/kenisopametonuvaka.pdfIn PDF document text
    • https://cdn.sqhk.co/lexuxeza/89ST2if/spirit_airlines_phone_number_tampa.pdfIn PDF document text
    • https://mewatejo.weebly.com/uploads/1/3/5/3/135322937/4af58660ad45.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://repewuwutopin.rf.gd/after_party_game_platforms.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_off0000e386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE386 5248 bytes
SHA-256: 9ae04afa5004378e3a8b48d20df09dc01d171d71b74782ca2d7ed9c33dcacf2e
font_01_sfnt_off0000f552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF552 11576 bytes
SHA-256: c5cb78e3e35ee0b4997e1247fd0840fea44ad87ded363af2608cc5671041cad2