Malicious PDF — malware analysis report

Static analysis result for SHA-256 fadd10c0a76f8703…

MALICIOUS

PDF

74.4 KB Created: 2021-02-20 04:09:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c07264322dcf5c56e7c4b286267b062a SHA-1: b002c77157d2c4a9e686cbe7204d0d6f3adb89ad SHA-256: fadd10c0a76f87038d9d57e55dd5b3ffd10295c977f322d138a7e4f71bdea58f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/wb?keyword=como%20se%20elabora%20un%20manual%20de%20calidad PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4471960/normal_5fec3b4a8bee1.pdfIn PDF document text
    • https://jironomazubem.weebly.com/uploads/1/3/5/3/135393756/domawufijal.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406473/normal_5fee2da7c9852.pdfIn PDF document text
    • https://zokelafeg.weebly.com/uploads/1/3/4/8/134889419/489cf0.pdfIn PDF document text
    • http://apsdd54gfv.xyz/jajosujelo93sis.pdfIn PDF document text
    • https://vazanopika.weebly.com/uploads/1/3/4/8/134896022/b508130997787d4.pdfIn PDF document text
    • http://grantmedica.ru/209366131326egfz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454990/normal_5fee47f198294.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475219/normal_60248c23d125b.pdfIn PDF document text
    • https://xonokuraku.weebly.com/uploads/1/3/3/9/133988937/tozumufosiv-vufisimatubafu-veveg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388271/normal_601b24ed9cd81.pdfIn PDF document text
    • https://vowagogo.weebly.com/uploads/1/3/5/3/135307183/doriwupitegu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408323/normal_600a1faa59c02.pdfIn PDF document text
    • http://osummer.space/hoover_uh70120_hepa_filterzmoa3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475376/normal_600a06648ff33.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462986/normal_5fdf52e84ae83.pdfIn PDF document text
    • https://figokafudifugi.weebly.com/uploads/1/3/1/3/131383964/jujurip_mapagasomiduwu_xuxalekasus_pupalipo.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/gelawiweza/nuxofoguke.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_off0000e573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE573 5128 bytes
SHA-256: 9dd3a626b5d524d818c162a0fdf78a352f095757555a44455a00b5d223dbbdec
font_01_sfnt_off0000f6bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6BF 11100 bytes
SHA-256: 6d8c11494689124c775eae0900176aab70ae20e71da1da08f52ba659200d5586