Malicious PDF — malware analysis report

Static analysis result for SHA-256 69049612e596cb3f…

MALICIOUS

PDF

70.0 KB Created: 2021-02-12 10:40:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7d381265e8137eac8a98eed7e472c0b6 SHA-1: b8f478f282faa827859534b24266aea85aa50172 SHA-256: 69049612e596cb3f8a0e5722adf5cb8082b329244872ef2a59455c311d1daaac
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=welcome+holy+spirit+free+pdf In PDF document text
    • https://cdn.sqhk.co/wirubetena/Ljh7jgM/wood_wallpaper_hd_black_clover.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381534/normal_5fca6a98b75aa.pdfIn PDF document text
    • https://cdn.sqhk.co/tinupolureg/iibhajc/nemuxezofaxuloniran.pdfIn PDF document text
    • https://sojozukajarab.weebly.com/uploads/1/3/4/2/134265810/ziduku_welalo_pumavuxoziritov.pdfIn PDF document text
    • https://xafineker.weebly.com/uploads/1/3/4/7/134701786/6208955.pdfIn PDF document text
    • http://jokixulu.iblogger.org/lookbook_website_template_free.pdfIn PDF document text
    • https://totiboliz.weebly.com/uploads/1/3/4/8/134897880/e7622.pdfIn PDF document text
    • https://mugokirupela.weebly.com/uploads/1/3/2/6/132681863/vegubiwovuz.pdfIn PDF document text
    • http://pudevivufug.22web.org/fivuxanidefejitu.pdfIn PDF document text
    • http://lijamerogavex.iblogger.org/endnote_software_free_softonic.pdfIn PDF document text
    • https://cdn.sqhk.co/ditutafewaw/gjniVjj/first_grade_reading_worksheets_free_online.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kezadovimitaw.rf.gd/gubuvevamuxa.pdfIn PDF document text
    • http://wutivufugisev.epizy.com/zovizavinalatatunafilo.pdfIn PDF document text
    • http://dufexupomom.rf.gd/83444040883.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_off0000d6f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F3 5300 bytes
SHA-256: 7152d9f95d8c85a31f83be0dd02627da7bb24d7936226bd9e2f159b2da696f7d
font_01_sfnt_off0000e8e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E5 9968 bytes
SHA-256: ba1f1e090c28f06942c0890efb7f664f9bb20e49e65a1719dbe992e77df73194