Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ee487c019557b9…

MALICIOUS

PDF

44.2 KB Created: 2020-11-08 12:37:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: fcff7d72653e8c5bc341a657ee626a4f SHA-1: 3544282404c75044164c3ab9e93a0ae113b5ead7 SHA-256: 96ee487c019557b9933c167a5ca1335ad84d0fcb3e009036073785845ee2ca7d
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffine.ru/aws?keyword=romeo+and+juliet+act+3+scene+4+audio In PDF document text
    • https://jipepusubame.weebly.com/uploads/1/3/4/0/134040653/1e990fdbb954a09.pdfIn PDF document text
    • https://lokenomosotim.weebly.com/uploads/1/3/4/4/134499182/xubemezubememepofe.pdfIn PDF document text
    • https://xisasuwida.weebly.com/uploads/1/3/4/4/134472621/22556.pdfIn PDF document text
    • https://kigibituridugu.weebly.com/uploads/1/3/4/3/134352406/jerasepibinoka_ruduze_wumireweme_kilibif.pdfIn PDF document text
    • https://mimitokiwunas.weebly.com/uploads/1/3/4/0/134012498/pupiwowedesuru.pdfIn PDF document text
    • https://mavobomuwatu.weebly.com/uploads/1/3/4/5/134592479/db56701296b9df.pdfIn PDF document text
    • https://pomitowu.weebly.com/uploads/1/3/4/3/134389192/1dfb35952a1ae7.pdfIn PDF document text
    • https://japiloxekafu.weebly.com/uploads/1/3/4/4/134480389/4684281.pdfIn PDF document text
    • https://rokejowavati.weebly.com/uploads/1/3/4/2/134265467/7008497.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367310/normal_5f87566dacbbe.pdfIn PDF document text
    • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/pisorevi.pdfIn PDF document text
    • https://xibopenevitamog.weebly.com/uploads/1/3/4/4/134488628/c7daa93dc05d280.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/debizikirapanas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367625/normal_5f888bce33a4b.pdfIn PDF document text
    • https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/nevuxiwikifujalu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6341 5324 bytes
SHA-256: 30ec384b5363c2d6e920a1f806d9d9c2fe3cdf167946195dcb394ac21e3bd764
font_01_sfnt_off00007553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7553 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off000080b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B6 10228 bytes
SHA-256: 1ba1e154566996d89181bf1271ff271a482c6abd829040cfede3689a26e1dbdc

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