Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9c26f0b9a459569…

MALICIOUS

PDF

83.8 KB Created: 2020-12-21 00:30:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9dff36543d69cab659ff4192a41a17bd SHA-1: 9fbf0a72f357a7bd616c0de10aee883a58cbb596 SHA-256: c9c26f0b9a459569f7a3469e4c034ee835fb0f599bc4114a036566a3105c3367
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffset.ru/123?utm_term=uniden+bearcat+980+service+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446642/normal_5f9ed81f1ea28.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452863/normal_5fcc9a1cbb8d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383449/normal_5fbee46829474.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383679/normal_5fa542e77ed8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385231/normal_5fa6a4852512e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452834/normal_5fcd20c7153c6.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://uploads.strikinglycdn.com/files/ec426474-adda-4d6e-9f88-239eceba6846/rewekuxosovufunesi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22d2c3c1-11c3-49c5-a629-20dd0043d3a2/86806094729.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e08512facd59ceacd9cd/t/5fc234dde6d49a06bbdbfb14/1606563039497/wabipodako.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c317ffa-a098-48c6-b2f0-e67bb0ab579b/new_holland_648_round_baler_service_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27ad21f1-35d9-4081-88d7-46bc7baa06b3/tewunenopabebitepurizitud.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc729495f0d731e16aabfad/t/5fd67b7b313c42342b911598/1607891846218/wiwebokuko.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C3 5540 bytes
SHA-256: 703b2502f379d29424cf54d53b7cd5538b4b8008351b571c1dbbb55e021b4905
font_01_sfnt_off00010c7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C7A 11604 bytes
SHA-256: 2dd4996d590a469b8ac7b8253a080689434e8de25e778226eb17884c8c77b706
font_02_sfnt_off0001340c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1340C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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