Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fdee1c552391af7…

MALICIOUS

PDF

76.2 KB Created: 2020-11-22 07:48:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 722817476e563311e26530c3c04f9bd3 SHA-1: 9c2033bcee3f92b7ae2804792432c5cead1faf25 SHA-256: 8fdee1c552391af7736b3288c81f20f2714407b9a3c4e0558cd3d82635299160
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 0.9998

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://traffnew.ru/123?utm_term=pro+deck+building+tips+mtg PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387716/normal_5fa428f892590.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484994/normal_5fb5e65531860.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502178/normal_5fb6a20eb7627.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366976/normal_5fa1554e51ebb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412377/normal_5f9c6c727d12d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366982/normal_5f8a91fa7cb7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485822/normal_5fb9cd7ad89e7.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/73e363c9-71ee-438b-a699-6b1e952902bf/pyramide_de_maslow_marketing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f39d0117-c619-4861-8f12-18e071b2f91c/3275547264.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/a_child_called_it_read_online.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/bodybuilding_workout_program.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56311594-8c20-4b81-b689-cd730670d01a/45614614527.pdfIn PDF document text
    • https://s3.amazonaws.com/lumixi/pico_sim_date_2_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00f6a7ca-8eb3-4a51-9dfe-d03d6409aa1b/95285079805.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f74bcbf8-c26f-4d9b-97e4-db056e29617b/sony_str-_dh770.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_off0000e541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE541 5388 bytes
SHA-256: 6c1247c910dba7dc27b1088ff014b33452bbdaa5934b8b31f1cd9e199ef38f76
font_01_sfnt_off0000f77d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF77D 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off0001000b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1000B 10256 bytes
SHA-256: b2027fd104879b1c7d95734a1bdffcb08afe754e62b52708a4c701ec3d6d2299

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