Malicious PDF — malware analysis report

Static analysis result for SHA-256 741906618627b8ed…

MALICIOUS

PDF

42.8 KB Created: 2020-10-07 22:18:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c3b19c2858dbccd21181799738e7a113 SHA-1: 57cf07d9613b6f76938339d55e94726e8a19c538 SHA-256: 741906618627b8ed65b0c070f651dd5cef6d056132b84cdfc97299458b4153f1
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/strik?keyword=ctopp+2+scoring+guide In PDF document text
    • http://risusupej.shesprettycrafty.net/uploads/1/3/2/6/132680937/jujuxebirodomiz_zujex_witixokupugasot_jezudux.pdfIn PDF document text
    • http://figovor.colonialbaptistbradenton.com/uploads/1/3/1/6/131636655/10e0d5.pdfIn PDF document text
    • http://files.saintpaulstrong.org/uploads/1/3/0/7/130738658/06de67be73.pdfIn PDF document text
    • http://files.swingbridgeboats.co.uk/uploads/1/3/1/4/131409526/biged-siwemo-jexawusidutarew-fufikososig.pdfIn PDF document text
    • http://files.expressionsartglass.com/uploads/1/3/1/4/131406827/83b492.pdfIn PDF document text
    • http://sibezow.smilingcolors.net/uploads/1/3/1/6/131637014/8807022.pdfIn PDF document text
    • http://bizizav.lenorahenson.com/uploads/1/3/0/7/130775598/6120128.pdfIn PDF document text
    • http://tuposikus.dpnutritionandfitness.com/uploads/1/3/0/7/130776401/9167992.pdfIn PDF document text
    • http://zijilokog.emasullivan-bissett.com/uploads/1/3/2/6/132695839/ef1050cecbfed1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/3c1837fe-7b2d-4150-9bcc-8cb390d79a82/80995284278.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5905aebb-c66f-48a1-ba31-f78b5e2807af/42547407149.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef657dc6-5b07-4add-8a64-1a519c389fc2/17598915964.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2257f79-f1ba-4cea-9fd1-cf349d1f60aa/lizepigimadaxitaredijuluj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6558a6b2-1f66-484c-97ab-3ece143640f1/87206099215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/nijepufujaxal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4003/9063/files/wepesujav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4312/2071/files/worksheet_tabs_identify_inactive_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9257/3336/files/sijasenidobo.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C3C 5036 bytes
SHA-256: 2ee9eeb7e6f8bfc96a802f53a1720dc08c3e1cd3f40b3ca0d1b21a1c9c4a56f4
font_01_sfnt_off00006d77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D77 10252 bytes
SHA-256: 41ccb668ec91734cbc139d775959bff4c3249982c72e842455f7f28acb3ce7e8
font_02_sfnt_off00009071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9071 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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