Malicious PDF — malware analysis report

Static analysis result for SHA-256 093afd5d9484ad45…

MALICIOUS

PDF

75.0 KB Created: 2021-02-19 07:17:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a5f25c42fa50158704c8212bdffbce52 SHA-1: 4a6f277187849ebb94be60c9af8c6870073d4ff9 SHA-256: 093afd5d9484ad454eda33c02c8bb87a89605bdc7119eba2863188381e0024b4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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/wix?keyword=iron+maiden+legacy+of+the+beast+leveling+guide PDF link annotation
    • https://belexikezetuvom.weebly.com/uploads/1/3/0/7/130775063/fekodukev.pdfIn PDF document text
    • https://gulurevipad.weebly.com/uploads/1/3/5/3/135349864/9bf2871cc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460946/normal_5fc8542b763aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490920/normal_5fd2e126a0fa8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423137/normal_5fe6b16d3f140.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413019/normal_5fe5e416e6c90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426944/normal_602ecf0402ed1.pdfIn PDF document text
    • http://kipupera.22web.org/ibm_serverguide_9._41_iso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386837/normal_601eb550d05b3.pdfIn PDF document text
    • https://xijapesulole.weebly.com/uploads/1/3/4/5/134588017/672776bb.pdfIn PDF document text
    • https://dasujodiket.weebly.com/uploads/1/3/4/4/134481559/gebenalotir-jiwumutakiri.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492901/normal_5fea13c22dd78.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382629/normal_602477da2436d.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/tugumeb/wosamu.pdfIn PDF document text
    • http://wukazuvogupe.epizy.com/coincidence_meme_template.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_off0000e6d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D7 5672 bytes
SHA-256: f63151ebe063e77f00b24866ccfce7bda8acf6d1c01ab65c768384fe8e912cb5
font_01_sfnt_off0000fa04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA04 10904 bytes
SHA-256: 2e056bbc8868299a63be137c33fba143047d68a103bba3a847ecabba7f4c8bcc