Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3d2168755e56324…

MALICIOUS

PDF

77.7 KB Created: 2021-05-24 13:52:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: abe51bfd49967dab58f684dda149cecd SHA-1: c9faed961144dd85361eeef6cf320bdbc2bc11e7 SHA-256: b3d2168755e56324b15d4c42cd7c26312545738c1cd54dfa6b4706d8313a476e
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document body contains a lure related to a search query, and an embedded URI points to a suspicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://botokaw.ru/strik?utm_term=what+is+loki%2527s+surname PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4481422/normal_60089d91e7c0f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471958/normal_5fe0511065976.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371261/normal_6035d2539385b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386837/normal_5fe47deba7b23.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452845/normal_5fefe667eca3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461770/normal_602316f8462ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369907/normal_601b73bd8148a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381546/normal_606c2e15612ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393639/normal_60407988188f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462974/normal_600e3e81d0ae7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375514/normal_601fc4185f320.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457592/normal_5fd5f62580ee4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454047/normal_6053063a7a7a9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412174/normal_5ffb38ba7f9e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445564/normal_5fed922962747.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/tobojelusiwi/gazuduweda.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/tixoxoz.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/wewekix.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/ruxotaxikosatibazib.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/office_themes_powerpoint_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/what_is_written_on_dead_sea_scrolls.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/lukosekopijusewoserejofu.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/licensed_aircraft_maintenance_engineer_resume.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_off0000f11c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11C 5036 bytes
SHA-256: 719178067314ad7f8818b6a2a045036d5b8b602e345e92bc9cf0cd36497d2ae9
font_01_sfnt_off00010222.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10222 11852 bytes
SHA-256: e15cb16feb639ba06d5aeb2185518b8794a67b9b204e48f35bbd48c3634cd374

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