Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f7ce1d5f888cdbd…

MALICIOUS

PDF

43.2 KB Created: 2020-10-16 04:04:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 11df3f04155e19ff9fb46cb4ae163f86 SHA-1: 58fb32f0b46625b9dbe088689af6b998b4ef3d0f SHA-256: 5f7ce1d5f888cdbdb298480bd8229fc3743ba3be18ebfc981cea68cf0fe4d8db
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/pify?keyword=last+shelter+survival+hack+mod+apk+2020 In PDF document text
    • https://gemenudotipetal.weebly.com/uploads/1/3/2/6/132695720/vetetikosotuzafiwop.pdfIn PDF document text
    • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/mekafo_sibiwidobixo_likoputegus_numumurog.pdfIn PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/topexukiguf-nulakekez.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/nodimakovej_xosukukaleropo.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/bf4458.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366659/normal_5f875b9400bc5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368503/normal_5f88d3b617ea7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370764/normal_5f886d2f14e61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369796/normal_5f87e2da6fc92.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365626/normal_5f8751a8501e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369329/normal_5f888d0d3f43a.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/130a9e89-cd59-4e73-b465-1cfc42b48ff2/74628306409.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/429bbd2e-fdc2-4202-8261-8e9e4baa0ed2/xumikesirazuduzenikuwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0d1a331-f6ea-4467-917d-2ec545112add/75497739106.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c3109c4-ab49-44eb-b351-833a528c6137/1041187469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6510/6847/files/foot_reflexology_near_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7990/4679/files/uniqlo_size_guide_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4768/0162/files/zajamawebat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/9420/3331/files/red_tearstone_ring_terraria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7135/4533/files/telorebiwowefetavudafev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/potapunivujokamorowazofej.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_off000069e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E1 5652 bytes
SHA-256: c9d39ccb262ad6608ba50228c545685dbbce2f1da5b3c62c27a62373222bc123
font_01_sfnt_off00007cf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF7 10096 bytes
SHA-256: c50784c2606ee95cbc45a51c129b12b9a2e57b3f8137bea971a51a0f2def6ffa

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