Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8587de7e28f7127…

MALICIOUS

PDF

65.9 KB Created: 2020-11-08 09:27:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 2e45e836affdbe934f7a7043dd26ee60 SHA-1: 3dd3beae1fa268a411f6aa3ca18bfddab2c2362c SHA-256: e8587de7e28f71279406dae466d3d573b2547929250b49f39720a8e8371ece18
74 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/123?keyword=teamspeak+android+apk PDF link annotation
    • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/dufipotuxebok.pdfIn PDF document text
    • https://mutazodot.weebly.com/uploads/1/3/0/8/130874237/fogepet.pdfIn PDF document text
    • https://kaxokotul.weebly.com/uploads/1/3/4/3/134380066/fatowadijepomil-vagobazivuzu-vopositekene.pdfIn PDF document text
    • https://merusomewazotom.weebly.com/uploads/1/3/4/5/134514041/9154900.pdfIn PDF document text
    • https://zegojipoxe.weebly.com/uploads/1/3/1/0/131069766/55ce0e8f33ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375541/normal_5f8b1f686c62c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366313/normal_5f87841e0a7d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371248/normal_5f953ee1a88f9.pdfIn PDF document text
    • https://zigifivabukom.weebly.com/uploads/1/3/4/4/134460242/4fdc4e2dd92e35.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/64218866894.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/shoqbox_sb7200_37_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/dokibaparijalozafogefe.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/jasikeloluvadusipumetosu.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/anthropology_syllabus_in_hindi.pdfIn PDF document text
    • https://levapumu.files.wordpress.com/2020/11/26954451052.pdfIn PDF document text
    • https://gifujen.files.wordpress.com/2020/11/86938959756.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_off0000c2a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2A5 5084 bytes
SHA-256: 6c3ea1eb0838e333aafe4680ab106488335d686eb5b5239b02fd414a4b52c12f
font_01_sfnt_off0000d3dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3DD 11508 bytes
SHA-256: a0f31297966e0b4d7b1b8ec837e0dd9af1259c32e7cd0249f91138b7ec3217f3