Malicious PDF — malware analysis report

Static analysis result for SHA-256 69dbc7255ed698ae…

MALICIOUS

PDF

69.2 KB Created: 2021-02-24 03:54:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 82c08787cb1943f927c7d49dac1408de SHA-1: 9f565f8d04cd089f456643869477efdf2440df62 SHA-256: 69dbc7255ed698ae630fbe8c35304965b6a257d4a3f63c5b337bc2315b67d7a3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=function+operations+worksheet+answers+algebra+2 PDF link annotation
    • http://uablog.website/manegakabotupomomitati82e6u.pdfIn PDF document text
    • http://beautysss.site/bejimesuripugipubitpm2sy.pdfIn PDF document text
    • https://cdn.sqhk.co/jizuxadif/fXijQhf/fabejigifataraxix.pdfIn PDF document text
    • http://infonewstravel.com/vetadinibavatarutawikilioy2ob.pdfIn PDF document text
    • http://vodoroding.info/84098569681qkymi.pdfIn PDF document text
    • http://help-verifiedbadgecenter.com/lewukefoxapabulujijigthb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485322/normal_603597a530dd4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461205/normal_5fffe8391cce5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478402/normal_5fdb0d5216dee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444875/normal_5fd9de250db0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480589/normal_6032804340062.pdfIn PDF document text
    • http://mnclassis.org/the_art_of_french_kissing_bookrfky7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372967/normal_5fd26530afc23.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/fajetufekejo/genoterazitajezeluludazeg.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/gisukagaxowimatiniwizibo.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/hungry_shark_apk_free_for_android.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_off0000d251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD251 5580 bytes
SHA-256: b32b5e01cb2d3ccfe2f4a1a1cdee6669af00207dd8e35a409904e2ba1f2acdda
font_01_sfnt_off0000e55c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55C 10040 bytes
SHA-256: fbe46a1ed07ffe3ab92322cc5769d14dac5511350b91496c2a48c0a105237eae