Malicious PDF — malware analysis report

Static analysis result for SHA-256 107e95a8a0492c03…

MALICIOUS

PDF

75.4 KB Created: 2020-11-23 15:47:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: d80d5e4c20a3861ed1a1c393f0fc107a SHA-1: b4459b1ed7f038ef3c5b3f9b35fa4526313bec1c SHA-256: 107e95a8a0492c03ee58d76543acf82d62a7aa26353a4cc13753d10ed2ed0090
244 Risk Score

Malware Insights

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

This PDF document was identified as malicious by multiple heuristics and ClamAV, indicating it is a phishing or redirector. It contains a large number of embedded links, many pointing to disposable hosting services, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to known malicious redirector infrastructure, likely intended to lead the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://traffmen.ru/strik?utm_term=snake+on+a+plane+full+movie+online+free In PDF document text
    • https://sezitoxonuga.weebly.com/uploads/1/3/4/8/134886233/02fbc97.pdfIn PDF document text
    • https://dafozadojav.weebly.com/uploads/1/3/4/7/134764431/5705315.pdfIn PDF document text
    • https://burivoren.weebly.com/uploads/1/3/4/2/134265934/lusof.pdfIn PDF document text
    • https://givifajilodox.weebly.com/uploads/1/3/0/8/130874655/bisuxijikigovu-pakaf-joromifura.pdfIn PDF document text
    • https://rezolokad.weebly.com/uploads/1/3/4/7/134718373/66e4e93.pdfIn PDF document text
    • https://fusupolupiritox.weebly.com/uploads/1/3/4/3/134374508/texeri-mikuwiriwenode-kefixo.pdfIn PDF document text
    • https://dekudabor.weebly.com/uploads/1/3/4/8/134893804/pokelug-nuribamedituk-podojurap.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/6f5be3a943e.pdfIn PDF document text
    • https://lukavorewigi.weebly.com/uploads/1/3/4/8/134862497/selejijipenotikemel.pdfIn PDF document text
    • https://zemuxarasojutin.weebly.com/uploads/1/3/4/3/134374283/93f218.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/6b580d00-c191-4dc5-9c7c-16b0eb311bd2/the_coding_manual_for_qualitative_researchers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/775ba02b-2a50-4f3d-af7b-566b4bae33ef/guwijiduf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adcbd268-f1ed-4a43-afa8-8caa58f11a2a/ranefirazafibozi.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_off0000ea2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2A 5096 bytes
SHA-256: bf344b1b59a894950987cf209eb7fd109fa38feca0979b844de4cdfcc02f7326
font_01_sfnt_off0000fb7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB7C 10992 bytes
SHA-256: 72029a0908ed79ee3460102dc5e64e7e791352805a9aa0750a532ebf568ecb0d

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