Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffc673fc7d9a5550…

MALICIOUS

PDF

64.5 KB Created: 2021-02-13 17:10:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 49dff4c546bf75c04b6ed7b32bace777 SHA-1: 2aa6cee4d4a9244891d30b7c4bce9bb396562d3c SHA-256: ffc673fc7d9a5550dff5718ed579838ab1e8d10741315e8fab04c0c317b9c198
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/123?utm_term=chapter+four+demo+lyrics PDF link annotation
    • http://mylic.ru/10928710459mvy07.pdfIn PDF document text
    • https://cdn.sqhk.co/sizozizaj/LEihGBo/rukegiwa.pdfIn PDF document text
    • http://memakumiri.iblogger.org/zulilixikolezi.pdfIn PDF document text
    • http://eroganoficial.site/9846130691195cym.pdfIn PDF document text
    • http://ridunculus.com/87672054018oxudz.pdfIn PDF document text
    • http://ideal-it.fun/marzipan_poppy_pillow_patternqxq0w.pdfIn PDF document text
    • https://cdn.sqhk.co/zunezafi/ejbjjie/93540314250.pdfIn PDF document text
    • https://cdn.sqhk.co/mowanideju/dgehdkv/71699792857.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/geheoaE/45063591850.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://makijozexu.rf.gd/vutuzeli.pdfIn PDF document text
    • http://tuwafexom.epizy.com/biwafalabibezu.pdfIn PDF document text
    • http://nulupoz.epizy.com/bogejoxugupekudikezufaze.pdfIn PDF document text
    • http://tubofebagadupa.epizy.com/5407980024.pdfIn PDF document text
    • http://xigibisas.rf.gd/free_beep_test_for_iphone.pdfIn PDF document text
    • http://vonizevugopu.rf.gd/neoclassical_architecture_characteristics.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_off0000c0ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0AD 5404 bytes
SHA-256: 1421806cf92c5c47269a0d2814b282da45a57c9b63f925e74c38b0671872c0ed
font_01_sfnt_off0000d2eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2EB 10056 bytes
SHA-256: f89e3ec74785ded0939b0f7e484e25d0ea6c9d7b066cdc93dcc4c35b79f51912