Malicious PDF — malware analysis report

Static analysis result for SHA-256 a87821bb42f0d571…

MALICIOUS

PDF

46.8 KB Created: 2020-10-28 03:43:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: b79e5310333f795315504557e1a06e75 SHA-1: 618ccc469d512fcfd3672e1826a1b0c39efa1aac SHA-256: a87821bb42f0d571480029c1939410bcd7266b9987f5ef9316675f01bbe12e5d
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://cctraff.ru/123?keyword=how+to+day+trade+ross+cameron+pdf In PDF document text
    • https://fexejolimoti.weebly.com/uploads/1/3/4/1/134131812/sugosinu-mibubevo-fetatexawaf.pdfIn PDF document text
    • https://ziripovopibew.weebly.com/uploads/1/3/0/8/130874468/wuzugozavesijap-xukurejijulute-rixasox-bumisewos.pdfIn PDF document text
    • https://zegojipoxe.weebly.com/uploads/1/3/1/0/131069766/duguxusalasepa_wurinegap_gabiraxojef.pdfIn PDF document text
    • https://kezobonuduwu.weebly.com/uploads/1/3/4/4/134457579/0ddcbc1.pdfIn PDF document text
    • https://vaxonarug.weebly.com/uploads/1/3/4/3/134378521/e2229d0.pdfIn PDF document text
    • https://bopiwode.weebly.com/uploads/1/3/4/3/134367631/1814214.pdfIn PDF document text
    • https://tedumuwoke.weebly.com/uploads/1/3/1/3/131397970/153577.pdfIn PDF document text
    • https://bikojeril.weebly.com/uploads/1/3/3/9/133999271/wudeburanim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368224/normal_5f8bedf9198fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377656/normal_5f93c33f0740d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368777/normal_5f8d9ec9beabc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387428/normal_5f97e23441cc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367625/normal_5f878cb37d475.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407749/normal_5f950389b9dc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366388/normal_5f873e1d50c78.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369930/normal_5f8c63cfaa92e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368975/normal_5f9708ca1a91d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403540/normal_5f91864e7eb56.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f663239-1b49-4373-acd4-22fefaa5ca54/xubagesomejexu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a59745bb-49a7-40de-94b5-7d797deb9089/kuwijofomibig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71e1a85d-1887-4572-bdb8-ee84e403a781/98857020193.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adb83f14-3403-4c73-9fbe-ad0dbf617d14/rajevosas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7431/3633/files/kadoranewegutijatelozezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/8742/8291/files/6818311342.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_off00007607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7607 5424 bytes
SHA-256: 05ee4c27ae5435acec314f2377d27a0d6114d4e0122418f959a1841f60ff4496
font_01_sfnt_off0000887c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x887C 11428 bytes
SHA-256: 183d369ede0bfcb008dbd505dd7d99b5aa9ab68011b054fa008135486348d115

Open this report in the interactive analyzer, or submit your own file for analysis.