Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cec1408dca06e94…

MALICIOUS

PDF

44.7 KB Created: 2020-11-08 00:46:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 60a7d2b567215531f1f9614235133678 SHA-1: 16d4d7b0bdcfa424afba72aaa20a294c51f757e6 SHA-256: 7cec1408dca06e94e91cc0252be5b63dd0324c3776314f0ab2e3a00485f767b1
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://traffmen.ru/aws?keyword=joseph+rodriguez+ct In PDF document text
    • https://juzomewe.weebly.com/uploads/1/3/4/3/134350864/sagakinin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465000/normal_5fa463b3254ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378165/normal_5f9b3b9d093e6.pdfIn PDF document text
    • https://zonepebitebebo.weebly.com/uploads/1/3/4/3/134369254/c2ebcc980e8bf.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/8dfba2bf-bdbe-43b5-9cc2-83c4a85c08bd/66287233344.pdfIn PDF document text
    • https://mezesodumeli.files.wordpress.com/2020/11/88904628373.pdfIn PDF document text
    • https://busuzika.files.wordpress.com/2020/11/jack_daniels_running_formula.pdfIn PDF document text
    • https://xanafegeze.files.wordpress.com/2020/11/munuzaragujilupipazabik.pdfIn PDF document text
    • https://nejokufa.files.wordpress.com/2020/11/rakifobumidebesolijum.pdfIn PDF document text
    • https://pifakimep.files.wordpress.com/2020/11/fododuxuxinoni.pdfIn PDF document text
    • https://sovezetazej.files.wordpress.com/2020/11/nugewekojasonepujanetim.pdfIn PDF document text
    • https://juvibix.files.wordpress.com/2020/11/wazasusegupaxusijip.pdfIn PDF document text
    • https://dufomose.files.wordpress.com/2020/11/23207472866.pdfIn PDF document text
    • https://rosebuzi.files.wordpress.com/2020/11/joshua_pellicer_tao_of_badass.pdfIn PDF document text
    • https://lojopuwu.files.wordpress.com/2020/11/perk_a_cola_labels.pdfIn PDF document text
    • https://vadazigifexe.files.wordpress.com/2020/11/gopiv.pdfIn PDF document text
    • https://pokavatirog.files.wordpress.com/2020/11/22901943762.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_off00006eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EEB 5132 bytes
SHA-256: 3bdbc032c814f26e46ba7cee2681bf5424d2477706d8a1d9a1e876e41ea965a6
font_01_sfnt_off00008063.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8063 11548 bytes
SHA-256: f3e69c9d18aa8369dc97358063421e362728854cb78afe3f122d2a94f5b527f3

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