Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9dbaa742f9e8606…

MALICIOUS

PDF

91.0 KB Created: 2021-02-11 09:45:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 942ec051a430c2644bc319c2e52c409c SHA-1: 7cfe673e34c8537871201c49605e1d3bcfcbd9e1 SHA-256: e9dbaa742f9e8606a1ab004bd242586cb3e924c96d24d62b1849afc38386d47c
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'leonvi.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a potentially harmful external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wb?keyword=autogenes%20training%207%20formeln PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4443812/normal_5fd9d76ac2910.pdfIn PDF document text
    • https://cdn.sqhk.co/sepufaziru/bjehe6Q/popuvidojemekelumokepevad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491153/normal_5fe7828b79926.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466398/normal_600922ef0ec2e.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/he0sv0q/35063841176.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382412/normal_601b7179aa46a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453100/normal_5ff7cc9f9bbfa.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/4t2bTgd/ice_cream_maker_machine_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467589/normal_5fd2fc12b1182.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390684/normal_60002af330a75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491946/normal_600e9f1f40aae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464077/normal_6024b81fc8cf9.pdfIn PDF document text
    • https://cdn.sqhk.co/disanefamu/Wgj2mge/cat_has_wart_on_neck.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501775/normal_5fdf0e6cf26cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370542/normal_601eeb2add516.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://s3.amazonaws.com/zazelujeju/tepewuniki.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/projector_installation_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/mitiwijusa.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/choose_the_correct_answers_which_item_can.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/zenesavawusexelezejufibo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001199d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1199D 5036 bytes
SHA-256: f378ab160483fa15eaa44f8e9ce9ad1c892f17b06ae2695c03ab8eef728e1eca
font_01_sfnt_off00012aad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AAD 11588 bytes
SHA-256: 9e8f6529b5feb6b61c2d366f451d80dd99a3fcdd2ec0d3b9f4efcc0397eb3044
font_02_sfnt_off00015021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15021 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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