Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed334124bb66d4f6…

MALICIOUS

PDF

67.5 KB Created: 2020-12-16 11:52:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 4933d8f4c918acf277e3b572a2bc4362 SHA-1: 91d7759ef002417743a3a0248ed3bd57e7f592cc SHA-256: ed334124bb66d4f6746e1b6aedc6875dba1b32838440c39a60bc30fb2ce65bb2
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document flagged by ClamAV as a phishing trojan. It contains an embedded URI pointing to 'traffking.ru', which is likely a malicious domain used to host phishing content or distribute further malware. The document body, though heavily obfuscated, contains text related to 'sports authority coupon 2015 printable', suggesting a lure to entice users to click the malicious link.

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://traffking.ru/123?utm_term=sports+authority+coupon+2015+printable PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426072/normal_5f98873bc73a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372707/normal_5f894e2ea25d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474997/normal_5fb7e530c437a.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/wesezuzuvalirik/equate_fiber_powder_review.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/federalists_vs_democratic_republicans_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc78fed5c272238a81ad988/t/5fd68b05c4373837b9119f65/1607895813982/wikotolemisirux.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0dc53c6ccf69f3260b16/1606290896172/74386178059.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/47587826700.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f5b088c99b6d37a76c18/t/5fc133b65147b148045f171f/1606497208056/72373280607.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc54079ea4a794d5661c0f1/t/5fcd0b522fa8bc6bcded58dc/1607273302830/em_dash_vs_en_dash.pdfIn PDF document text
    • https://s3.amazonaws.com/tekujel/sediwazisekomu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5b5a3c30a162e0c73770f/t/5fd151619d79d86a998dddf3/1607553378056/81442803954.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_off0000c729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC729 5816 bytes
SHA-256: 60ac51452c03293b616ba85a4ab505c9d428b18cbad198bc4421ae70a7d5e6bb
font_01_sfnt_off0000dafb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAFB 11212 bytes
SHA-256: e71f226f6ae069f8d7a33ad03de1acc9a0ab3516eba298628932414938207aca

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