Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ca8767d1ae1ab84…

MALICIOUS

PDF

62.1 KB Created: 2020-12-19 06:51:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f22809f0ea2235754509669ecb8601fd SHA-1: 062607957db351116f30371f3251f37e5abad501 SHA-256: 7ca8767d1ae1ab8431ea00da81a15eca928d03a4fb3f1209be1f4c1e942aa3d6
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 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=lowes+dewalt+table+saw PDF link annotation
    • https://sivaxawisebirim.weebly.com/uploads/1/3/1/4/131407763/pudujipumojekat_digiganokimakir.pdfIn PDF document text
    • https://wubobuxidozexe.weebly.com/uploads/1/3/4/3/134322977/fuwujonobu-wagireguf.pdfIn PDF document text
    • https://petizigosi.weebly.com/uploads/1/3/4/9/134903326/8551909.pdfIn PDF document text
    • https://kodalogodo.weebly.com/uploads/1/3/4/7/134753778/kadalepum_gozodaw.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/5cf3ca7e-2aed-489d-b0a2-295ce3638cae/62110548449.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/arithmetic_reasoning_telugu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf51e09d7936484084ceb6/1606373856485/famujojafoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b040718d-c3f7-4fe9-b7e8-e2cfda85a0c7/tidekug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10d78a83-8bd9-4156-9790-d8d4134322bd/43417451787.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5f2e9bf-7c17-4a5c-b96c-6fdd87defe76/xagedonirevedivifu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24bb2bea-03a2-4207-8a30-41d5944743ca/rental_properties_greenville_south_carolina.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3990c4d0-4f47-45e0-869f-49e85850d35d/dowugefavi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c828d71-3e3d-4d27-ba2d-f926d9e0636a/58582817294.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc529a5bd14ff0dd2b8563d/t/5fd0acff3bcf75077a87aafb/1607511296254/37911969269.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_off0000b8b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8B5 4896 bytes
SHA-256: a65555e71b519ac79f5ea525db901d4796e2d222517033e1d4ef68ecbc306c84
font_01_sfnt_off0000c985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC985 10068 bytes
SHA-256: b452c43d3158e7dee279ffd05ff96dad44eab4797f995aced8c44e7eaefa324a

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