Malicious PDF — malware analysis report

Static analysis result for SHA-256 65702dba23ddfc38…

MALICIOUS

PDF

101.3 KB Created: 2020-11-25 05:36:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 9ca216f95df4651c2ebb2ad9acaa4a4e SHA-1: b2a76b83d7728bb8b1f98cb2a5caf56527027fa8 SHA-256: 65702dba23ddfc38d4d9045e0c9bd60c6c42cd2965dd6f16be4166ef55b2c993
244 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to disposable hosting services and redirectors. The primary malicious URL identified is 'https://traffine.ru/strik?utm_term=the+idolmaster+sidem+live+on+st%2540ge', which is flagged as a malicious redirector. The document's structure and the presence of numerous external links suggest an attempt to lure users to potentially harmful websites, consistent with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffine.ru/strik?utm_term=the+idolmaster+sidem+live+on+st%2540ge In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366397/normal_5f8db09984d50.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/bosalaz_romikasebupe_kepijupogolekik_lisegotanili.pdfIn PDF document text
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/8cd8c8.pdfIn PDF document text
    • https://madovokego.weebly.com/uploads/1/3/1/4/131409717/kibeluvaxole-kedusise-botokef-jodutez.pdfIn PDF document text
    • https://toziraza.weebly.com/uploads/1/3/4/5/134506396/pozegivewaxe-pokisiporurefo-xobatuxewerakar-movolugizewigus.pdfIn PDF document text
    • https://jedarixires.weebly.com/uploads/1/3/0/9/130969076/4976201.pdfIn PDF document text
    • https://lulitetuxopibol.weebly.com/uploads/1/3/1/1/131164377/4781198.pdfIn PDF document text
    • https://gipusarele.weebly.com/uploads/1/3/4/7/134708700/5b8b06b1aadec1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374359/normal_5fa0a7fc87873.pdfIn PDF document text
    • https://zeruxexo.weebly.com/uploads/1/3/4/3/134373455/mibobutazuw-giwebu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/c718d6b9-b9f3-4cd2-9b85-335a3a222137/3765675594.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/vogopodasufimupupapiziri.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/icici_bank_full_information.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eded5c18-58d9-40cf-b410-cdc753d49a1a/wildfit_diet_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dfa4cc0-ffe4-43d5-9b0f-dd6b00e3fdcd/75368316354.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e84e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE84E 19584 bytes
SHA-256: e1758ee043495435fafd808740689bf8c1145f308ec318c5ee7ce961dc0613e1
font_01_sfnt_off00012734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12734 5368 bytes
SHA-256: 43f0be8eeffa0033fad84a8ebe2678a60a3110197ce74594c1774e82e1e5aec2
font_02_sfnt_off0001394d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1394D 13704 bytes
SHA-256: 7e5376939e985ca5fdc2367ae33cda78d29dcaa095d1204f41e8cf117bc83265
font_03_sfnt_off00016495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16495 16124 bytes
SHA-256: 31aa2d795969d61e5f254b759d02708de62cdff9f09216fc017e300c935fe6c5
font_04_sfnt_off00017989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17989 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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