Malicious PDF — malware analysis report

Static analysis result for SHA-256 7210df4d927227a2…

MALICIOUS

PDF

72.3 KB Created: 2020-11-17 10:00:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: c2b8c1a65ed62b1eca895b8b1f5694ac SHA-1: dce8e785f68de0689177f1cbd6d448996fd2f2e0 SHA-256: 7210df4d927227a2dfad43636e3de9c0a5369775c9fa41f397d5286fc2286649
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with at least one identified as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the document structure and URL analysis point to a link-farming or redirection attack.

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 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://traffine.ru/strik?utm_term=new+ping+wedges In PDF document text
    • https://zalopajozi.weebly.com/uploads/1/3/1/4/131453352/gafelisirupusanuvi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378153/normal_5f8ba060ec52a.pdfIn PDF document text
    • https://gipegilut.weebly.com/uploads/1/3/4/6/134699389/puvopitivoz.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/bisute/large_glass_containers_for_kombucha.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ddbd558-71d7-440e-9407-3702788be595/43406584542.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/jevetowop.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/38066970768.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e044f524-956c-41db-8eb6-0ccc4f02b7f8/kegevebowidamigodivisen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08de900b-ee7f-4124-b068-12952b6f0798/14250323225.pdfIn PDF document text
    • https://s3.amazonaws.com/mupakijivuruzim/msn_hotmail_inbox_email_address.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bb3436c-2285-4502-971f-cc4699afb5d4/79630796411.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/unblocked_games_gg_ez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c46e4d74-9cff-466b-b020-d39ac552e551/63955699543.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD328 3080 bytes
SHA-256: 5510861e0701cb7f7f57c1c4f6c9cfe19f8a483cefdede93edc0bf9cc0aea221
font_01_sfnt_off0000de30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE30 4848 bytes
SHA-256: c7484fcd16e098a21a5ae82fe0ba1ca9828503c0460dcbf027e5dc1766eb125b
font_02_sfnt_off0000eee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE3 11064 bytes
SHA-256: dad42df223882737711f052f2e8d15c04dcc5f40a5aff58825bc7b13156e46c9

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