Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea9039a86c5768b5…

MALICIOUS

PDF

63.5 KB Created: 2020-11-20 07:43:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7a747e62813c48b3e1e46bf4f12c6e1c SHA-1: 2f81a64a277bd1e040d9dfdc2fc5ab55c7901088 SHA-256: ea9039a86c5768b58664dcc9a670c171d026f8ceb1cbf4358b07001d4a7eca26
96 Risk Score

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 URI pointing to 'traffking.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to free comic downloads, aligning with common social engineering tactics.

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/aws?utm_term=hellboy+comics+pdf+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366964/normal_5fa207b9d2f9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460983/normal_5fa57fc23a8e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445326/normal_5f9fb8d9aa1c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387421/normal_5f8e1995a1a8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367004/normal_5f88227864d22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466370/normal_5fae459ce1e65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445128/normal_5fa65f4624b33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368225/normal_5f89f4443aebd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e027290a-73a4-4903-aaf5-79e104715d22/64333936594.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/85788871323.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/cartoon_photo_editor_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/jodobudujaji.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/sepokerewesomavoduwegub.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_off0000bb56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB56 5296 bytes
SHA-256: c9ba4fa319ad2c31d13caea58c83655438ca435bd766e8af7bb573a97e65d93e
font_01_sfnt_off0000cd47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD47 10616 bytes
SHA-256: ab126e06d103d740e9d450f9f3c212087922cb62aca2236d4897c5ce7f1a9af5