Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e0dd0cbde9d37aa…

MALICIOUS

PDF

67.2 KB Created: 2021-02-06 10:27:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e0b83155d04e8453700ea01c96b97d5e SHA-1: d7a2a808563cf146e9778e533c88239f33c1ed55 SHA-256: 2e0dd0cbde9d37aa28f151ccc7b062eaedf0fc6e1887fc23bd1163a28073ba6a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/wb?keyword=4.%202%20classifying%20triangles%20worksheet%20answers PDF link annotation
    • http://halfraire.xyz/context_clues_synonyms_and_antonyms_example35ae9.pdfIn PDF document text
    • https://dadojunolibete.weebly.com/uploads/1/3/2/6/132683289/3423334.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369189/normal_5fd2acd2ca627.pdfIn PDF document text
    • https://belexikezetuvom.weebly.com/uploads/1/3/0/7/130775063/c97f1ddb29baa.pdfIn PDF document text
    • http://tortomsk.ru/daxekamafoxga7oh.pdfIn PDF document text
    • http://iwhite.space/20689053412pilw6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459055/normal_5fd118d17eae4.pdfIn PDF document text
    • https://wipemaxo.weebly.com/uploads/1/3/5/3/135345075/janevumaxukerapovi.pdfIn PDF document text
    • https://rutelixiriselop.weebly.com/uploads/1/3/4/7/134748314/marogila_zoxez_rejosipuf.pdfIn PDF document text
    • https://cdn.sqhk.co/julukiporo/ECebSji/32570452125.pdfIn PDF document text
    • https://jekodijup.weebly.com/uploads/1/3/4/4/134490718/252140.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454691/normal_5fcbf0bf14186.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://molutuganum.epizy.com/cystic_acne_treatment_guidelines.pdfIn PDF document text
    • http://vizepojuduw.rf.gd/75148641363.pdfIn PDF document text
    • http://seredafurikir.rf.gd/bijigomefetoreged.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_off0000ca7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA7E 5556 bytes
SHA-256: 7f68f9d1ddf6bcf67d0aa94baf0e65c96b083be37e99c60f3d7d00ce5e9951e4
font_01_sfnt_off0000dd8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8A 10136 bytes
SHA-256: 658a37e4d683223a3e7f3bb8a75eae2fb35ef7dec75b2adde4d708234e1f8864