Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a5c4d19dc97af0d…

MALICIOUS

PDF

51.8 KB Created: 2020-11-06 18:43:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 647c62e4026110d9a0f568ce0a7d5c0d SHA-1: 18879be24fd80c92a04175bdfd4e17d58d331384 SHA-256: 1a5c4d19dc97af0d70e3692775d18596aae5771478154f9e310702fe7e619c58
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=les+bolstad+golf+course+mn PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368782/normal_5f9bb2c0d0720.pdfIn PDF document text
    • https://sijevunima.weebly.com/uploads/1/3/1/8/131859613/78f7b7ac897d.pdfIn PDF document text
    • https://garupiripo.weebly.com/uploads/1/3/4/3/134386314/bomoxaromez-boduvilujilagez.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/nerato_dedamelaniris_majokugotigoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386086/normal_5f8d1b9da319a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371498/normal_5f91a5307fd53.pdfIn PDF document text
    • https://viwawisigox.weebly.com/uploads/1/3/4/3/134342504/tofuwaze_pubawixudizij.pdfIn PDF document text
    • https://panasijizikefiz.weebly.com/uploads/1/3/4/4/134446590/2069623.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420244/normal_5f9b1ae8378cb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://sazajade.files.wordpress.com/2020/11/fefofapexadomak.pdfIn PDF document text
    • https://lijatiwove.files.wordpress.com/2020/11/aprender_si_pero_como_philippe_resumen.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E1 5424 bytes
SHA-256: 00973ea782e0e1b8b3cb172e3591ede06590b424c8ef15252ecb8f5e2142d8b0
font_01_sfnt_off00007644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7644 11044 bytes
SHA-256: 15e22bd6d436c6e04d8b2c398ca161097bae6bfcb15fb704c2ab0e88f262a199
font_02_sfnt_off00009c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C21 17684 bytes
SHA-256: f808ba4c12034aacf69f976aad53ddfc335a85947f738cd349b7ce441b0b2f97
font_03_sfnt_off0000b6d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6D9 2748 bytes
SHA-256: c3730694b372be3708f354f363027a80d581632ab391d1a7cd573df3e4f6cd62

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