Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3b02e54a85694f8…

MALICIOUS

PDF

44.6 KB Created: 2020-11-09 09:09:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 87bd3e538ccbd7b4ea868230d820231c SHA-1: dd9eeee788bcf27f3a460c4a9b1983468e039e9d SHA-256: e3b02e54a85694f896823e67b518a0364816d08ab5aaf49d8d84aed75340675c
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=sample+cover+letter+for+post+office+carrier PDF link annotation
    • https://wetuxabo.weebly.com/uploads/1/3/0/8/130873937/12484.pdfIn PDF document text
    • https://gafalevomunu.weebly.com/uploads/1/3/4/2/134235362/rivakuluw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408718/normal_5f967babc3c9f.pdfIn PDF document text
    • https://waxojokizubow.weebly.com/uploads/1/3/4/4/134482073/tadugefuba-kejunujisutota-mizodex.pdfIn PDF document text
    • https://dopikilazobowu.weebly.com/uploads/1/3/4/4/134488506/jazogu_birixu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446036/normal_5fa6dbf854cfa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369776/normal_5f8ab128455a8.pdfIn PDF document text
    • https://telavepifamika.weebly.com/uploads/1/3/4/3/134352802/4542705.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/297c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381528/normal_5f909ba7edb09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365536/normal_5f873735e0edd.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://s3.amazonaws.com/gupuso/pinesuzutu.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/makajipujimunudekagudi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e36c536-d7a6-4643-971d-bdaa67838e11/luritow.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_off00006326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6326 5008 bytes
SHA-256: ea963a4e05df9f7c709c5ec545834747d37d1842935cd3194dccb72b4fd07158
font_01_sfnt_off00007431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7431 10256 bytes
SHA-256: d2c8e319960d18fe7a8ae16f0f5a165ecd6d0a717e3ab823c7bda6f341f6ed83
font_02_sfnt_off00009755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9755 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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