Malicious PDF — malware analysis report

Static analysis result for SHA-256 9699a2d84586dcd2…

MALICIOUS

PDF

63.6 KB Created: 2020-12-11 09:10:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a1f7da0e51a51049e2507efae8b9540c SHA-1: 96166a177f8951f6462647d22bc68638c0273cdf SHA-256: 9699a2d84586dcd24831a7978670444a3b46862181980591672de7bf5ac7ac59
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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://traffmen.ru/strik?utm_term=ams+conference+2020+brisbane In PDF document text
    • https://static.s123-cdn-static.com/uploads/4404969/normal_5fca21b1f13da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409257/normal_5fa20c9febf24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459777/normal_5fbe7c1128588.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408478/normal_5fbd827edc5fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381547/normal_5f8c8c7a141ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415308/normal_5fbc88c26dc8d.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/waxapoz/72482735858.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/60578152577.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/hulu_tv_schedule_for_september.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eba89a17-3565-4161-befb-fc1000fd6533/niworagavu.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/abnormal_psychology_dsm_5.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/nenarewatokarobodejuk.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/snapchat_apk_download_kindle_fire.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/gezanod.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/m1_carbine_magazine_markings_identification.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9475b13-b67f-4cb2-86b3-3e651d5b558e/93992204739.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

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bcfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCFB 5396 bytes
SHA-256: 86bab88c0de28cc00ad32759cefd5c1562f5b29f588ac5d84142ff00cbd2ecb7
font_01_sfnt_off0000cf3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF3D 10148 bytes
SHA-256: 675082e274e37f72f5f5f0ff30433d3587ac25385bad6c44dbd610dd3b62d39a

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