Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d3bfeee8eab1151…

MALICIOUS

PDF

81.5 KB Created: 2021-05-26 15:03:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: c69b83324c1d90d6ad691fd445b48897 SHA-1: 000859de79d127e68ae012eefcd591984411b6d6 SHA-256: 6d3bfeee8eab11518605086c1f00e6b9b5633ecbbb29272c817d1fa824d553ee
244 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.007 JavaScript

This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, including flagging it as a redirector link farm. It contains numerous links, with one pointing to a known malicious domain, likely intended to lure users into clicking and visiting potentially harmful sites. The document body appears to be corrupted or obfuscated, preventing a clear understanding of its direct content, but the presence of a link farm strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://crophysi.ru/strik?utm_term=what+is+slam+poetry+examples In PDF document text
    • https://dizegeduwawab.weebly.com/uploads/1/3/4/3/134374994/04f80.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450504/normal_6057d0d1e9f13.pdfIn PDF document text
    • https://rigozanukamesok.weebly.com/uploads/1/3/4/5/134508669/dasefutidegazu_zijolixozoleno_jazivizozi_kipaligi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489255/normal_6040a3228cd31.pdfIn PDF document text
    • https://kabapavubume.weebly.com/uploads/1/3/4/7/134742816/1903613.pdfIn PDF document text
    • https://siravexadobema.weebly.com/uploads/1/3/4/3/134320718/e1e5fc5b61b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449990/normal_5fdfb8bd02e67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444636/normal_60648fb009815.pdfIn PDF document text
    • https://solupufaposedi.weebly.com/uploads/1/3/1/8/131857421/3165588.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489730/normal_604d13ce59f2c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455673/normal_5fcb4742d8881.pdfIn PDF document text
    • https://sukanogijero.weebly.com/uploads/1/3/4/3/134333185/d4b9786f352109.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445550/normal_6033f70d5d34a.pdfIn PDF document text
    • https://zefisazivite.weebly.com/uploads/1/3/5/3/135314851/721056e2b44b3.pdfIn PDF document text
    • https://fepapidatimupiv.weebly.com/uploads/1/3/1/4/131437812/5383327.pdfIn PDF document text
    • https://fixajunize.weebly.com/uploads/1/3/6/0/136051507/mamava_wedawuvusi_zadekokovaz_gaxavikamumisow.pdfIn PDF document text
    • https://vosafezedivoko.weebly.com/uploads/1/3/6/0/136095507/bubawatuxodotefojuxo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487194/normal_6011919a018c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409102/normal_6024af2b7ee79.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366341/normal_605fa57508880.pdfIn PDF document text
    • https://muxavitegujun.weebly.com/uploads/1/3/1/6/131637584/7742760.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/f25b885b-6d1f-4ceb-aa0c-b7b74235c95d/83392015328.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc0a26d5-0342-4b18-a46d-ba158a304a01/57930843286.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf18fb3e-09b9-4957-a7e2-f795cf5dc36e/neck_workouts_with_resistance_bands.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9fd1788-8ce9-4a5a-8c1f-dd0f2d272258/66349837179.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_off00010001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10001 5240 bytes
SHA-256: 7a261156deb558a1af07c025a1059492634937c7ce66f6a7fbceb8f4c98b745c
font_01_sfnt_off000111bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111BD 10856 bytes
SHA-256: 237b854dc3549b0155a0077249c5bc09512ecb3049986251186cf4f653b96ae2

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