Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7c79ad3fabcf194…

MALICIOUS

PDF

75.3 KB Created: 2021-01-17 04:29:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7433ce5b495dde10b1f8e5dda6f7770c SHA-1: 3a06b5099b5a10d53ff96a0c1fcd9f5b9de8d5ae SHA-256: c7c79ad3fabcf194ad7a6bf2bfe342c5470f84231e942656b7b32a3612b58d9a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'trafftec.ru' with keywords suggesting a lure related to popular streaming devices and software, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI are strong indicators of a malicious document, potentially leveraging exploits or social engineering.

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://trafftec.ru/wb?keyword=kodi%20firestick%20xanax%20build PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450884/normal_5fc182f4965cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424009/normal_5f9c7fed35778.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4529780/normal_5ff5496febc69.pdfIn PDF document text
    • https://site-1172046.mozfiles.com/files/1172046/gunship_iii_free.pdfIn PDF document text
    • https://site-1176454.mozfiles.com/files/1176454/the_white_door_day_4.pdfIn PDF document text
    • https://site-1202889.mozfiles.com/files/1202889/bullous_pemphigoid.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416125/normal_5fcd007b3d5f3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384821/normal_5fe556fd1e7f8.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/pazifetanegapu/gulowikalazokudofoxo.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/81137722259.pdfIn PDF document text
    • https://s3.amazonaws.com/pozokimepe/xatemake.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD23 5136 bytes
SHA-256: def11234cf33cd595af77b7ca7a22f77f6fa1f09024f8a52d34beafd58f3aff6
font_01_sfnt_off0000eea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA8 10536 bytes
SHA-256: cf93037091719f8840c6e69f3fa3018fa11b9eeaeaf5034c3ee4feb4a1351dbc
font_02_sfnt_off000112ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112BA 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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