Malicious PDF — malware analysis report

Static analysis result for SHA-256 39dd892ed5c9fd56…

MALICIOUS

PDF

73.6 KB Created: 2021-02-27 10:00:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a92d9ab8f19a1f64d32c1c8a123150af SHA-1: 81ce94e2530d18e91b970e81723c1dd5cd999cd7 SHA-256: 39dd892ed5c9fd5602c2955a32c2cd6e216e2c05b34766f07781af7110ee5d5f
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/aws?utm_term=what+is+an+infp+personality+type PDF link annotation
    • http://myfoxing.online/salebufinakomabapobexakkkkm.pdfIn PDF document text
    • https://cdn.sqhk.co/zotofoza/uuieqjh/fufotufojinig.pdfIn PDF document text
    • https://cdn.sqhk.co/mitugejaxel/jicjijc/16549316771.pdfIn PDF document text
    • http://lirerigoteses.22web.org/porter_cable_jetstream_air_compressor_4_gallon_manual.pdfIn PDF document text
    • https://mafidusat.weebly.com/uploads/1/3/4/1/134109097/9c9c40afd.pdfIn PDF document text
    • https://tefovaxosu.weebly.com/uploads/1/3/1/1/131163863/kazedox.pdfIn PDF document text
    • https://nemabofafuz.weebly.com/uploads/1/3/5/3/135389169/senofozupu.pdfIn PDF document text
    • http://rocketdocs.us/music_artist_profile_samplex6tkg.pdfIn PDF document text
    • https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/4459832.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475000/normal_5fdf56a49b4de.pdfIn PDF document text
    • https://cdn.sqhk.co/pixisuja/jhaajgu/32407974286.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuzisop.epizy.com/lesitabo.pdfIn PDF document text
    • http://wogakuw.rf.gd/vedurigef.pdfIn PDF document text
    • http://tegewixu.epizy.com/bounce_bike_app_apk.pdfIn PDF document text
    • http://supetok.rf.gd/guwazet.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_off0000e4aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AA 5104 bytes
SHA-256: 07c6ef84d8e061bb2069919866a001e3684f32e901b37d4ae778e0558df7de8d
font_01_sfnt_off0000f615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF615 10380 bytes
SHA-256: 2f764a0885d104c093cf33d1dcdf75193d5fcc541352948f2ca962741277c9ee