Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a16a2e0d0abc3cd…

MALICIOUS

PDF

80.9 KB Created: 2021-02-19 15:21:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 63325a3a55923c5c4eed3af9f0b4866e SHA-1: 393ea9b7db20314cf7511caaf61446f3f3b6dde1 SHA-256: 5a16a2e0d0abc3cdec5c06a6a904117aad9ff826aef4efaa1bd38fc3b2a91ba3
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to 'seumenha.ru', which is likely part of a phishing campaign. The document body, though heavily obfuscated, contains strings related to 'Sentry safe' and 'walmart', suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/123?utm_term=sentry+safe+1170+walmart PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4451551/normal_5ff7bbb6bbd81.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465691/normal_5feafca8f0763.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427293/normal_6001c5336102e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426059/normal_6008ef85cbbcd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409257/normal_601b7d24e05b6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411250/normal_5feb243d8256d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530990/normal_5fcd50a9c56d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470982/normal_5fcc5c2bca946.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366005/normal_602f8e543797e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470391/normal_6004e3338be7a.pdfIn PDF document text
    • https://cdn.sqhk.co/jazepoxamib/eiajijc/fonts_for_tattoos_alphabet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490917/normal_601876087debb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414489/normal_5fe6ad8b397f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421934/normal_5fe45539325a5.pdfIn PDF document text
    • https://cdn.sqhk.co/latusetime/Jic4Chb/99567594689.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duwuvafufupi.rf.gd/beginners_guide_how_to_become_an_architect.pdfIn PDF document text
    • http://pezedavepajizum.rf.gd/americorps_login_timesheet.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_off0000fcb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCB4 5484 bytes
SHA-256: 074be90f5cdafa1e5265d139610f8d4a2f6837ce8c25176325ddbdc6be5dfe3f
font_01_sfnt_off00010f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F67 11796 bytes
SHA-256: 4f7802d2412a3befd17a3e20496f8ee327c5aa5c64e1ab1964d738719976f67f

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