Malicious PDF — malware analysis report

Static analysis result for SHA-256 85e14a7c664689b3…

MALICIOUS

PDF

46.8 KB Created: 2020-10-28 11:49:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 3f9346effeff21c8e8d7612cdb07220a SHA-1: 746cd46d5061c54eea6b3d1f63fd28e89f7ee202 SHA-256: 85e14a7c664689b3ef107c2eccc078f838e12a9f9624ae2c3a478c223982edc7
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://ggtraff.ru/aws?keyword=family+guy+quest+for+stuff+cheat+codes In PDF document text
    • https://cdn-cms.f-static.net/uploads/4426407/normal_5f989dfd3f33a.pdfIn PDF document text
    • https://gowiwoniba.weebly.com/uploads/1/3/1/8/131857243/godebisewolasexisavu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384633/normal_5f97da8cf382d.pdfIn PDF document text
    • https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/vuzazirowabixebigovo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366308/normal_5f926ffe21bbc.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/zebetuwi.pdfIn PDF document text
    • https://zaduwemupate.weebly.com/uploads/1/3/4/4/134464980/menamagepenolul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383802/normal_5f97284d3af42.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381098/normal_5f93293d90e9c.pdfIn PDF document text
    • https://kusebedanosude.weebly.com/uploads/1/3/1/1/131163667/dabiviko.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379969/normal_5f965e7927265.pdfIn PDF document text
    • https://xubuvene.weebly.com/uploads/1/3/1/3/131380433/e6896d39a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367911/normal_5f8d80f6a96b6.pdfIn PDF document text
    • https://wipomozexabezi.weebly.com/uploads/1/3/0/7/130776841/worigamovawira.pdfIn PDF document text
    • https://zixotojene.weebly.com/uploads/1/3/4/3/134315054/5783316.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/vovofofaverun_sawivurovoj_nifawubazox.pdfIn PDF document text
    • https://nulixedupalaz.weebly.com/uploads/1/3/0/7/130739510/9ab292546be82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366987/normal_5f9038637df49.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/3742/6342/files/latin_american_model.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15a2f09e-7260-43b1-b9cc-b0f9b88af8a9/52509078265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/1986/2694/files/25042800904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/1622/2406/files/derniere_danse_piano_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/378411af-c80d-4ec2-962c-219229dc72ee/jalaluddin_rumi_poemas_de_amor.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_off00007569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7569 5620 bytes
SHA-256: d236741983ddca37fffaa3bc666995439dd98cc73c448ac881aa546df105e86f
font_01_sfnt_off00008863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8863 10920 bytes
SHA-256: 1e81a363b51316a31f3a64bf562da424edc9c1113318187ac34ddc1684000ae9

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