Malicious PDF — malware analysis report

Static analysis result for SHA-256 e60de96cb6e47407…

MALICIOUS

PDF

88.7 KB Created: 2020-11-28 07:04:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 20cd9211be7a423aece78aa679383477 SHA-1: b70d893c50a4252b5a3d0eb63dc3513a21e0ea18 SHA-256: e60de96cb6e4740717e05d77d2e971152f171c9f012e9ad86cfb83f118bb3fbc
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting an attempt to manipulate search engine rankings or direct users to malicious sites. The ML_NYX_PDF_MALICIOUS and ClamAV detections confirm its malicious nature. The embedded URL `https://trafficel.ru/123?utm_term=the+thronetaker+mhw+crown` is a primary indicator of the malicious redirection attempt.

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
  • 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.
  • 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=the+thronetaker+mhw+crown PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368249/normal_5f87fa401ddb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384649/normal_5f8f7126b8658.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485442/normal_5fbe2a56887ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466161/normal_5fadcafe0a184.pdfIn PDF document text
    • https://xixipafo.weebly.com/uploads/1/3/4/7/134745113/wobujurifabupefut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405930/normal_5f9247b612afc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470698/normal_5fa4ff190d310.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379615/normal_5fbe91b9e41c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367959/normal_5faa28970c89f.pdfIn PDF document text
    • https://xujuwole.weebly.com/uploads/1/3/4/3/134378666/zipadase.pdfIn PDF document text
    • https://rirumuzog.weebly.com/uploads/1/3/4/1/134109041/9813165.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392441/normal_5f9751e6b3a77.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/f35fc6f6-0d63-4220-9fd4-2e2c654b7b9e/calculus_larson_8th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86225aa4-21ef-4465-a35a-45477d5b0de8/mk_meaning_in_texting.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3047e0c6-b49c-42b0-ae89-48a9155b5a84/nojepaxesonasesi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c993006a-a463-490f-8b5c-6ba3eada87ae/baixar_pro_tools_9_crackeado_para_wi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6E 2952 bytes
SHA-256: 8bf03937ed3d804ddab98f70abebefdf36328d712d5600c732f1294b4d583de3
font_01_sfnt_off000107f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107F7 4932 bytes
SHA-256: 2dfe83fe2fab2330a5a84922af86c0e31beacd42f19e079920d9b74a4567fcb1
font_02_sfnt_off000118a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118A2 11076 bytes
SHA-256: ff5a3944f40fa9c7fd1c3579af8c76ac8666f04b5a4e6158056909abaed8e292
font_03_sfnt_off00013e92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E92 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073

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