Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d386b4a3a36fdd2…

MALICIOUS

PDF

92.2 KB Created: 2020-12-14 02:22:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 47e51e4a14d8b1b1e231f6e242e692ec SHA-1: 4327868706a668a9da7879e4aeac9435988418c1 SHA-256: 6d386b4a3a36fdd21dcb2fbf67bd13b4e4a99cf0ceb5fae75b3f5abcee2210c6
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple embedded URLs, with at least one identified as a malicious redirector. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. The document body, though heavily obfuscated, suggests a lure related to "Rhapsody a musical adventure ds". No scripts were extracted, but the presence of malicious links is a primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffmen.ru/123?utm_term=rhapsody+a+musical+adventure+ds In PDF document text
    • https://xijivokabororix.weebly.com/uploads/1/3/4/8/134879859/6425521.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367622/normal_5fcafc056fb9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478688/normal_5faab85b89e04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369311/normal_5fd6a72c48c14.pdfIn PDF document text
    • https://zusaneji.weebly.com/uploads/1/3/0/8/130813769/zipurivapajelagu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366987/normal_5f876a8424d34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401692/normal_5f9eda3c77af7.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/031ead2e-43f8-4dbe-8036-eaa1dae01115/baxefogododiboniletaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/use_an_apple_watch_with_android.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce56132ebf7d3ac645cd13/t/5fd61836034a586a4f3ac35c/1607866422718/93653318999.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce628b2cf4ad19c3adc2c9/t/5fd684685b1f6f7539dc9790/1607894121707/35736281196.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0fe247f0db06af81d346/1606225892016/encyclopedia_of_herbal_medicine.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/mizenexivusemokuxeli.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf57345147b148042a4325/1606375221832/54864840006.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB2 14472 bytes
SHA-256: c69773ebaf8a63d432b4fb344af1b3bfd2e770d3530f336434875675aa48dd4b
font_01_sfnt_off00011ce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CE4 5364 bytes
SHA-256: a2236456e8c1b184043bb6a1ed15332b595ab26b3d408c9a35b6ed6ca6bec875
font_02_sfnt_off00012f03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F03 11548 bytes
SHA-256: cd401ab014f4e5f5ff512200d42a16df690199044a85b699e3107de84c920de8
font_03_sfnt_off00015516.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15516 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

Open this report in the interactive analyzer, or submit your own file for analysis.