Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6f0a0a9c4d26664…

MALICIOUS

PDF

70.0 KB Created: 2020-11-26 23:18:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f9e8e326651c0295446bc40c7e94a3c SHA-1: 5d4b7631ef7c8d8e8ecd1510ed8fe107f4af6b26 SHA-256: e6f0a0a9c4d266640c01f868c6f8d5943b780dbc04e0abc2cea0eb488b2ac35d
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 URL that leads to a suspicious domain, likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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://trafficel.ru/123?utm_term=weather+in+zion+national+park+in+march
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/6a521e24-fce2-4e9b-aeea-ff4de0b01197/greater_arcane_elixir_stack_with_shadow_power.pdf
    • https://s3.amazonaws.com/jemazejodep/d-link_dir_615_manual.pdf
    • https://s3.amazonaws.com/kudowo/sobupip.pdf
    • https://uploads.strikinglycdn.com/files/c8a0c9c5-3d0e-46a8-8780-adadd51e15cb/fezifixitesemoxu.pdf
    • https://s3.amazonaws.com/zebarufuridorur/16698743705.pdf
    • https://s3.amazonaws.com/jemisajoda/11937899526.pdf
    • https://uploads.strikinglycdn.com/files/07554b67-0efc-443c-81e4-9470e6930b0c/xiwekobadapam.pdf
    • https://uploads.strikinglycdn.com/files/931bfde3-5573-4fb8-9d3c-4f7fb4140755/sidarezirakuronulifanupa.pdf
    • https://s3.amazonaws.com/jifesu/riwibunukepulolilinabaji.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cba4.bin
0d10ba1e0cc16303055e8529cf3801791aff195371eb4364a4761e8eb29fa9ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCBA4 4908 bytes
font_01_sfnt_off0000dc34.bin
41ab39e04c6769bf0c019727c938c9a0f8dbdaaf941308e110d96190dfd568c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC34 9772 bytes
font_02_sfnt_off0000fd84.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD84 4324 bytes

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