Malicious PDF — malware analysis report

Static analysis result for SHA-256 97111189f63ca999…

MALICIOUS

PDF

71.5 KB Created: 2020-12-27 03:45:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 798e70f4c031d0d7dbc6b1046f8ed6b7 SHA-1: 1b13e550b090cbd6aa91641fce7ea19c8fda0e1c SHA-256: 97111189f63ca999e2a96a7c4dbf0cd4286969f2a7f67df839e03649b5b17d7a
214 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 embeds a large number of external links characteristic of an SEO link farm and 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 0.9997

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/strik?utm_term=warlords+of+draenor+raids In PDF document text
    • https://cdn-cms.f-static.net/uploads/4378836/normal_5f983253d0a7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469841/normal_5fa47fc1b2e93.pdfIn PDF document text
    • https://lidenezat.weebly.com/uploads/1/3/4/3/134382714/kujevi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374198/normal_5f8906574b44f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420915/normal_5fce79010a721.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388272/normal_5f96e72256b55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374366/normal_5f94767998c3f.pdfIn PDF document text
    • https://pajulabilo.weebly.com/uploads/1/3/4/6/134620642/lurulebebebizep.pdfIn PDF document text
    • https://cdn.sqhk.co/vikoparif/BbIigdQ/the_archers_2_apk_home.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5ebfd63-4395-4b61-9765-5fb5c3545d6c/pedomuvikinezopobodet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7386f61d-65ab-43ef-8d8c-2d11f0911793/23568433550.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/517992de-50d9-433d-9af2-921b096634e6/sitivedor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04964ec4-0469-4dc4-8f8b-82efe4e39ed8/70345681655.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01009675-f6b3-42c4-86a4-47deb7e29120/pokemon_go_mod_apk_download_for_android_2019_latest_version.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_off0000dd4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD4B 4916 bytes
SHA-256: 6618abbcbcaa081cefa07589e0eb4b3c664b0ae2b01aeddfcd921d5bb4b0cc27
font_01_sfnt_off0000ee1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE1B 10252 bytes
SHA-256: 237c81c7be7b82b4f5f565ec5d616d44b9809213eee8917d680b896ac19b54d3

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