Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb0b6e88bcc6ea62…

MALICIOUS

PDF

73.1 KB Created: 2021-03-01 07:20:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f52a57cd4484182ee69abad77ec228bd SHA-1: 4a03ff255e98ae78645d126a97a07e7b88c7c44f SHA-256: eb0b6e88bcc6ea62ce85bae5a36a166ebd9540dd278ee396dad04e757c4db061
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://xajibur.ru/award?keyword=are+bmw+330xi+reliable PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4411493/normal_5fd899e7a5152.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414152/normal_602fb80ca5d70.pdfIn PDF document text
    • http://milky-rp.space/3718325122ev1js.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419204/normal_5fecbf49389c8.pdfIn PDF document text
    • http://trujillostacoshop.com/98215179234f0x2d.pdfIn PDF document text
    • http://mscredit.info/katewa7e7pw.pdfIn PDF document text
    • https://gonalibage.weebly.com/uploads/1/3/4/6/134652093/8923199.pdfIn PDF document text
    • https://gewipilozu.weebly.com/uploads/1/3/0/7/130775211/a8e20d0ecb4c60.pdfIn PDF document text
    • https://rolemefusibo.weebly.com/uploads/1/3/0/8/130814279/natixuxazovodoxixug.pdfIn PDF document text
    • https://kodiridit.weebly.com/uploads/1/3/5/3/135342100/kibatanuze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455403/normal_601f7441998c3.pdfIn PDF document text
    • https://modibabujoxasa.weebly.com/uploads/1/3/4/6/134694511/giwibejoguma-jaxeb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://medesoteruf.rf.gd/index_of_power_book_2_ghost_episode_6.pdfIn PDF document text
    • http://febuzoremasovev.epizy.com/joshua_s_law_unit_3_exam_answers.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_off0000e085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE085 5248 bytes
SHA-256: f48568db0ca29fc01aa286815259ef97dbb307ec4ca94c8ad81aefd1d40f3abd
font_01_sfnt_off0000f25f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF25F 10824 bytes
SHA-256: d53dac92802758a218127c1114cc0440d427114165f327e969d284ce5d757890