Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fd5ffc97f66d745…

MALICIOUS

PDF

54.0 KB Created: 2020-10-16 03:35:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: d3b69e157657c470ede00626c68dbce6 SHA-1: e9983c4a60d06814bb92a216bae459252e5e4344 SHA-256: 3fd5ffc97f66d7450afdface9a7d8c3dca4050f1778dc55cd2bbb88cdc207208
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://ttraff.club/pify?keyword=get+context+in+class+android In PDF document text
    • https://madovokego.weebly.com/uploads/1/3/1/4/131409717/pixanidosa.pdfIn PDF document text
    • https://nakumupapetiz.weebly.com/uploads/1/3/2/7/132741615/a09aac2f53ce0.pdfIn PDF document text
    • https://javezevefumutew.weebly.com/uploads/1/3/2/7/132740470/pudokigoweweg_fejokusek_samiforitupavip.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/dotiravufarad-tikomixeboluxal-lapav.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/nusujorasixe_gakuwisiwuli.pdfIn PDF document text
    • https://fewevivib.weebly.com/uploads/1/3/0/8/130813821/5653360.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/selagu-wugixinoxule.pdfIn PDF document text
    • https://gozofuma.weebly.com/uploads/1/3/0/8/130874065/tapixubunimawogesi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371266/normal_5f88ca63865b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369633/normal_5f8846487ff65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367627/normal_5f883519753f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365642/normal_5f88c9e9410e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369507/normal_5f88cf04e403f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365635/normal_5f872cb382254.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373997/normal_5f88db5036120.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367960/normal_5f88de0f12c1d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366964/normal_5f883b7f05691.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366980/normal_5f88bd63edc59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366382/normal_5f87a3f1298bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366042/normal_5f86ff8674613.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365540/normal_5f8704f069948.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366015/normal_5f8758e353ea4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_5f874f7e937b6.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://cdn.shopify.com/s/files/1/0433/9302/4151/files/rabawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9755/3064/files/bumasosi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000086b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B5 4820 bytes
SHA-256: d93952949f175508603def7d66d05b3d2ddea06395d12123602d422dd79f42d6
font_01_sfnt_off0000971e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x971E 11400 bytes
SHA-256: 8509261bf90e28400a266a932e05d197b0085362e963347d392d733adfb24718
font_02_sfnt_off0000bc33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC33 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f