Malicious PDF — malware analysis report

Static analysis result for SHA-256 6be0dda5db69b98a…

MALICIOUS

PDF

79.3 KB Created: 2020-12-29 17:32:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b88e891b080eab7c98021625f8270aab SHA-1: be5bd04743261fda9ff695a2bf4db6addc17cea9 SHA-256: 6be0dda5db69b98a055b16d4e726299edf77c13a393ace4e74d765b469eb3996
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector, disguised as game cheats. This suggests a phishing or scam attempt to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.

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://ggtraff.ru/strik?utm_term=grand+theft+auto+3+cheats+for+ps2 In PDF document text
    • https://cdn.sqhk.co/birenejar/88gegcX/jikumaforeruwatepimu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417308/normal_5fd3d05c6d4d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369143/normal_5f960dc59669c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489724/normal_5fc1c14797ec1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365567/normal_5f92122b75059.pdfIn PDF document text
    • https://ronurakegilapoz.weebly.com/uploads/1/3/4/8/134852428/zimifub_lezipisazikuj.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/eEgiRie/59105747719.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387433/normal_5fe646e214853.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467017/normal_5fa77e603cf0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368976/normal_5f9bbb520471c.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/05598458-a54c-4ebb-bdf6-db3992b1c9d3/dell_emc_open_source.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_off0000f839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF839 5540 bytes
SHA-256: 2673e75d80442c5703ccc90c57b98a2871108aed02653c58da2771e7a94412ae
font_01_sfnt_off00010b10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B10 11600 bytes
SHA-256: 46d08bddc20a984d4141f544ca1fd538ce25f158e307d8bd7d05f4875e0e38cf

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