Malicious PDF — malware analysis report

Static analysis result for SHA-256 cccea2c010432513…

MALICIOUS

PDF

47.8 KB Created: 2020-10-27 04:21:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 9e6519a79e05011344bf25890c4376e8 SHA-1: e6568df350ff79d4766aa7082e7e1df5ec4b7a07 SHA-256: cccea2c010432513bd4fc877e507a9a70ea31c614153a37ba3efcec9ee12b461
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/123?keyword=gre+biology+study+guide+pdf In PDF document text
    • https://jonipafatanepa.weebly.com/uploads/1/3/2/7/132741476/sinuwotiloselo.pdfIn PDF document text
    • https://sufusazowuk.weebly.com/uploads/1/3/4/3/134311692/nexixapan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381980/normal_5f93e11e25500.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370066/normal_5f902f9450fed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369922/normal_5f95cfea0a88a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412592/normal_5f96c1012c41d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379231/normal_5f9282751ee70.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/5058540.pdfIn PDF document text
    • https://rowiranuzexu.weebly.com/uploads/1/3/4/4/134436227/5664119.pdfIn PDF document text
    • https://konanofekevofi.weebly.com/uploads/1/3/4/3/134367310/6799800.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/c9553f5d-e9ab-4826-ba04-f37f22349f9a/wilufitapirebazijovinisif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74fe1309-800e-479c-ace5-3e24edcc4fe4/64928590316.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97e0d42b-4526-4474-a604-9db85ee57ad2/navipokezunulut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/960efd71-e083-4c1a-b37a-54300256ca18/four_five_seconds_mp3_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40d9ef44-8e05-495a-9efc-c05e8ec97dd9/56931371720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/7108/7007/files/what_is_the_current_i0_that_flows_through_the_resistor_immediately_after_the_switch_is_thrown.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/0926/0707/files/izotope_spire_studio_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4095/5803/files/oil_drop_experiment_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9186/0379/files/normas_abnt_trabalhos_academicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3876/1109/files/zoo_tycoon_xbox_one_manual.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_off00007b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2A 5272 bytes
SHA-256: cdda485cd9ed485dac1acaf0c3712585e4f554ed9813f12ec142bd2df96f4d51
font_01_sfnt_off00008d34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D34 10708 bytes
SHA-256: edb334e25eda8a7a54e8240c439f37fe027bb74878a76456eb9da33d306a1a59

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