Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ac180f06ca6664e…

MALICIOUS

PDF

64.5 KB Created: 2021-02-13 12:25:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f11eb9527fe73562512d5041af109b9a SHA-1: b381900fd370d6b5893264eb65103df88064bcb4 SHA-256: 7ac180f06ca6664e438eb0e0e5a77565ed13e7fb25f5035ce8e3b026a5b4b361
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/wix?keyword=algebra+1+notes+for+9th+grade+pdf PDF link annotation
    • https://narufana.weebly.com/uploads/1/3/4/6/134653256/gojusipevosegaf-dizuna-dujipe-gofoxapatim.pdfIn PDF document text
    • https://pepomujotopulog.weebly.com/uploads/1/3/4/8/134873529/7370494.pdfIn PDF document text
    • https://vizekufebatovut.weebly.com/uploads/1/3/1/3/131382320/xisuma.pdfIn PDF document text
    • https://tivaxuxilo.weebly.com/uploads/1/3/4/1/134131375/4aabc.pdfIn PDF document text
    • https://wowererifawop.weebly.com/uploads/1/3/1/3/131384429/xexavabupuvape-podenivemix-vetaloke.pdfIn PDF document text
    • http://myfavoritesun.xyz/duvinizenizofomilonetirp7tzb.pdfIn PDF document text
    • http://safagiko.iblogger.org/dezixukidisutimalepupa.pdfIn PDF document text
    • https://sewogasi.weebly.com/uploads/1/3/1/1/131163712/wosilasuzubawo-dezusimuruxujuz-valoloxenimur-riruvutu.pdfIn PDF document text
    • https://gitosupogule.weebly.com/uploads/1/3/2/7/132741155/fd2d7d5047c9.pdfIn PDF document text
    • https://golisarupu.weebly.com/uploads/1/3/5/3/135317681/zaxaxuwokutixanedi.pdfIn PDF document text
    • https://minaraxu.weebly.com/uploads/1/3/4/7/134765114/kubisejusupix.pdfIn PDF document text
    • http://iblack.space/jquery_button_onclick_submit_form2uk4r.pdfIn PDF document text
    • https://zopupafi.weebly.com/uploads/1/3/1/4/131454349/04b1bcea15.pdfIn PDF document text
    • https://radefikifuru.weebly.com/uploads/1/3/4/7/134723330/5023825.pdfIn PDF document text
    • https://rinuvimasajef.weebly.com/uploads/1/3/2/6/132695862/3ec769142.pdfIn PDF document text
    • https://bulugigedi.weebly.com/uploads/1/3/4/7/134714886/efb759.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gusufarafedi.epizy.com/example_of_internship_report_malaysia.pdfIn PDF document text
    • http://kosigasarem.epizy.com/80592916326.pdfIn PDF document text
    • http://fikojadepo.rf.gd/41038511627.pdfIn PDF document text
    • http://rasiritodir.rf.gd/geoffrey_chaucer_the_knight_s_tale.pdfIn PDF document text
    • http://jipokogave.epizy.com/cch_to_sheet_set_trong_cad.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_off0000be9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE9D 5640 bytes
SHA-256: 21afdc81824b72cddc302bf062fd1b17d01b7962afe347d86680c548effed0da
font_01_sfnt_off0000d1bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1BF 10568 bytes
SHA-256: 813bd66b475bc23158319c0c898ad0631dadce998694944057586c0c6ea04719

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