Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e93924d4b242e3c…

MALICIOUS

PDF

62.1 KB Created: 2020-10-27 15:57:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 1337629739a5f16c2118ac67b1d1588f SHA-1: baeb98d62b3d51f351961a389b179a06e2e05c28 SHA-256: 1e93924d4b242e3c988cf9480f757321de43f6f4ca17b317adebd8a56d4cc4b5
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://gettraff.ru/strik?keyword=way+of+the+wicked+pathfinder+player%2527s+guide In PDF document text
    • https://xumabilere.weebly.com/uploads/1/3/1/1/131163638/8069858.pdfIn PDF document text
    • https://basoxafal.weebly.com/uploads/1/3/4/4/134499196/dibimut_sofirowugatut_kowaronumexolod.pdfIn PDF document text
    • https://fipuvulozubonoj.weebly.com/uploads/1/3/4/3/134313175/fotakukuridet_rolodes_jalone_xavufukunaluv.pdfIn PDF document text
    • https://wuwenivavubujer.weebly.com/uploads/1/3/1/4/131437756/vanusub.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/7360136.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/revowo-mutitikiva-wiwegovinajo-tuxatusejuze.pdfIn PDF document text
    • https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/7194767.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369316/normal_5f952fb51b3df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379035/normal_5f9149a8b1d25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368747/normal_5f89b1166f551.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372735/normal_5f907f422c720.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402289/normal_5f90a5882b810.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369168/normal_5f928625d7a08.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383692/normal_5f962ad637ff2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369511/normal_5f90d1f225567.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382790/normal_5f92ca298ed37.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/9d71ce0a-af03-4382-94aa-3eb823a5bc43/gugubumiwinopemisuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/333c4750-190e-42d9-8d05-06e2a39e4577/xalubeju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/485430a0-65a0-42f3-9850-87c89ad8dc68/loup_et_les_7_chevreaux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c385cfed-2311-4a17-b24c-4edfa0b28f2b/jeremowijib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0acf1a0-9216-4248-b0e8-d932684ea39d/39917964231.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47dd4f66-ddb1-4dc8-8f22-1b91702d7811/balekisi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38a86a8d-d166-41c5-8c34-f2fb4bd659b5/makilegolebi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d940eb65-3a67-48ff-b482-a2ee5a7db717/votupodafufobumoru.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_off0000b376.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB376 5724 bytes
SHA-256: c0d7db3860e725804a9e45a19ede95f0259e881ead3d2d7494b6570c0b6fc6d5
font_01_sfnt_off0000c716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC716 10392 bytes
SHA-256: 4c59550923b7b8c48abf7e25e3df52318c7ab3c5bb60c80e5acd439f9acdeb2a