Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5775ee476f8ea4f…

MALICIOUS

PDF

75.8 KB Created: 2020-12-08 17:53:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63ef9c25680df86c8e2c4b6aff8da78b SHA-1: 1f6213bf3c39c3064ae30054f7d3b9cbfc9ff90d SHA-256: f5775ee476f8ea4f3f807254ddfd77826623fd33dc5ebd97fc3b7c7f4ee6b0e4
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that points to a suspicious domain, trafftec.ru. This URL is likely used to redirect the user to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing lure.

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://trafftec.ru/wb?keyword=if%20else%20in%20oracle%20rtf%20template
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static1.squarespace.com/static/5fc525ff8139af037660b63c/t/5fce336ed336b863f0ecc8c9/1607349104186/brawl_stars_free_gems_and_coins_generator.pdf
    • https://uploads.strikinglycdn.com/files/e05d5468-e7c7-4541-b5d0-d9ffc726fb7b/45409554156.pdf
    • https://uploads.strikinglycdn.com/files/7b8bf684-3893-4f43-a465-fff1a2731df8/xewegipurovoji.pdf
    • https://uploads.strikinglycdn.com/files/46d0bb30-efa8-4cc7-b660-63d618d2869c/38911411799.pdf
    • https://uploads.strikinglycdn.com/files/4eabf3c9-74ec-480c-88eb-57cfdb4a8cc6/mcdougle_middle_school.pdf
    • https://static1.squarespace.com/static/5fc6ac03085bf90c0e256974/t/5fcaee4f7ab0f364aba259fe/1607134801282/outbreak_company_light_novel_spoilers.pdf
    • https://uploads.strikinglycdn.com/files/e40fa75f-bdf1-4824-bf2d-d8a2978c7856/42070179347.pdf
    • https://uploads.strikinglycdn.com/files/6a87cdd3-a33d-4ee8-8f56-9fc8ff7a671b/libro_los_renglones_torcidos_de_dios_en_ingles.pdf
    • https://s3.amazonaws.com/luresimosip/xadobufedasezixugepuk.pdf
    • https://uploads.strikinglycdn.com/files/7ae3f462-f9f9-4195-9703-2f816a10694e/ferewapiximawafitiwepeni.pdf
    • https://static1.squarespace.com/static/5fc1ae84085bf90c0e029602/t/5fc53563145a8629dc59fc49/1606759781019/kanawha_county_school_calendar_2018-19.pdf
    • https://uploads.strikinglycdn.com/files/aa7bb958-c000-4d90-a219-6b09a65a5475/maxwell_boltzmann_curve_chemistry.pdf
    • https://uploads.strikinglycdn.com/files/8ea2a071-3167-456a-8e5e-be11eb47e848/budiwikijon.pdf
    • https://s3.amazonaws.com/sojuravewi/zuwotexili.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ddc1.bin
97dd2103a6789eb7aa47f30d6141f23a34df0fc06cf86d54827626fe3cc61f13
pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC1 4888 bytes
font_01_sfnt_off0000ee35.bin
672a3fd93fac8aee6a9714665ddcd04552f58e9b6c6e3a900d0784951b06a997
pdf-font-stream PDF embedded font (sfnt) at offset 0xEE35 11100 bytes
font_02_sfnt_off00011404.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x11404 4324 bytes