Malicious PDF — malware analysis report

Static analysis result for SHA-256 c77c4b640b4f5402…

MALICIOUS

PDF

74.3 KB Created: 2021-02-10 14:22:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 8648e9877af64589d63bd8b57a42bdbc SHA-1: 707c05f6af0de1124b6c928ea3e21f1a5defe0ef SHA-256: c77c4b640b4f5402dff52fec6b7cf148d142abbedea40b39350934d9718aed7c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, disguised with search terms for a John Deere mower belt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • 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/123?utm_term=john+deere+la105+mower+deck+belt In PDF document text
    • http://hustlinmoney.com/nogafeti70b8f.pdfIn PDF document text
    • http://swast-group.website/fipogosoruxepxq4g9.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/idhcicD/jodarakaz.pdfIn PDF document text
    • http://b0xberry.online/rupesb9ggo.pdfIn PDF document text
    • http://nanolenka.xyz/62600106166it4c.pdfIn PDF document text
    • http://smeshnoykir.space/xidujetufosixegikokojewia13ik.pdfIn PDF document text
    • http://gufutaca1.xyz/9397750070ew9mr.pdfIn PDF document text
    • http://plsale.pro/arma_3_exile_base_raiding_guide8p0wr.pdfIn PDF document text
    • http://neliwiveles.22web.org/40394156712.pdfIn PDF document text
    • https://cdn.sqhk.co/tunaluvum/ifGhenx/momuxabadezedemus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dafiwogi.rf.gd/82688002992.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/online_shopping_presentation_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/baofeng_bf-_888s_programming_software_free.pdfIn PDF document text
    • http://kuwosuz.rf.gd/nobuzofa.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/bigeko.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/5202141728.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/celia_sakamoto_discografia.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_off0000e4b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B5 5604 bytes
SHA-256: 130eb572f92f2c680373081aad6f8dd55f46516587e5f9899c3aa208a6669318
font_01_sfnt_off0000f7ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7AC 10832 bytes
SHA-256: 973613a86ff75eeb22d221a9b9737ca120a757ce2a152c09cc4cc7d9553f8fc1

Open this report in the interactive analyzer, or submit your own file for analysis.