Malicious PDF — malware analysis report

Static analysis result for SHA-256 053d364f58cd757c…

MALICIOUS

PDF

70.0 KB Created: 2020-12-17 02:11:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 6d11e17e77791bfae52a8374890ee381 SHA-1: 214161c4623b5d9d1dd00f3d9f096defac71b97d SHA-256: 053d364f58cd757c179bbac39aee9cdabd7873d4433cf9fdcc11dce9488ccc23
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ggtraff.ru'. The document body, though heavily obfuscated, contains text related to 'Indian beautiful girl hd wallpapers', suggesting a lure. The ML classifier and ClamAV detection further support the malicious nature of this PDF, likely used as a phishing or malware delivery mechanism.

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
  • 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.
  • 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://ggtraff.ru/aws?utm_term=indian+beautiful+girl+hd+wallpapers+1080p In PDF document text
    • https://cdn-cms.f-static.net/uploads/4445119/normal_5fa6131a23b53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369514/normal_5fac2bc693a58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452865/normal_5fab9d7215c46.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/oxidation_reduction_reaction_examples.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc56926a13a450bab12a87b/t/5fd04c58b8bf0379e606778e/1607486553276/linezagelisaposa.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc129dd17e7202640ebdc1b/t/5fc28b4c3485235c86198555/1606585165350/66171488703.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6806ca3bf4b14abcfadcf/t/5fcb6f9266ddd570b0f542eb/1607167891831/space_hd_live_wallpaper_apk_paid_full_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f2625e6-b714-45e2-9b84-395eba4a414e/jagawavebaferidunos.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc33b8b3dfdd95b60e431f6/t/5fc8ee51e75eec1f920c0b3c/1607003730320/football_manager_2020_touch_ipad_free_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc54f4bf7cf8c754047fa56/t/5fca82db1e3eb747148506df/1607107292005/ant_killer_gel_b_q.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/steffany_gretzinger_blackout_free.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_off0000d046.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD046 5860 bytes
SHA-256: d32c76538450c3191306fd531e7d76f2796824ec57d8b052035f3a4e07552d7b
font_01_sfnt_off0000e43f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE43F 11668 bytes
SHA-256: 64c953182e6b657ded4b444ea04d745c150957526ed74aa964a5606e603c7036

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