Malicious PDF — malware analysis report

Static analysis result for SHA-256 c45c82c8bb4caa36…

MALICIOUS

PDF

46.7 KB Created: 2020-10-15 21:09:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c1cea5fbd049fc8db5a5ef5bbeb31401 SHA-1: 65a0e60bc977e39b9382baab77e24eea237725b5 SHA-256: c45c82c8bb4caa360767040c1ce76030c0bd4998def039f9c92ae91c56ae7a5e
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/pify?keyword=nikon+d3200+manual+settings In PDF document text
    • https://xebikazogede.weebly.com/uploads/1/3/2/7/132740990/jafofabum.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/rasavef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366381/normal_5f874be6e4375.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369322/normal_5f885c0532305.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/xenemavurinap_jokepirewiteda_fijalezej_gemewije.pdfIn PDF document text
    • https://fewevivib.weebly.com/uploads/1/3/0/8/130813821/5967272.pdfIn PDF document text
    • https://dojulukasinu.weebly.com/uploads/1/3/0/7/130776790/jeburagu_xuzupu_bosurub_radomizen.pdfIn PDF document text
    • https://mamunazeve.weebly.com/uploads/1/3/0/8/130814121/dusifurogaxati_posapifil_xalamatoxapobu.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/6443274.pdfIn PDF document text
    • https://fanawilixu.weebly.com/uploads/1/3/1/4/131408209/3834639.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/tebavu_mofevuz_punoxibera_gijipomole.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/05f0f888-a674-4301-9750-c79eb19bfe9a/bosepagopaxarakedorane.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37102dc3-8b6a-4892-bb0a-3c55b2b717e1/febaganupipakurofem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f95b4ad1-6f5b-4c5c-9be9-055ccf20461f/76063483588.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f53fdcdb-b631-4743-9098-3dbe6fff58a0/kunomepekatizeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5370/1525/files/paracord_cobra_weave_dog_leash.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/4839/8759/files/tojurelaxosokaxefagevev.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7770 5520 bytes
SHA-256: 3323b86c67fedcf1a26046abef976c4ebd3119ebbe4a0469acef4d2c15660844
font_01_sfnt_off00008a2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2C 10448 bytes
SHA-256: ff1266adfff6bb96960b7bd104512ba2a49e6625000525533f0a930cac316179

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