Malicious PDF — malware analysis report

Static analysis result for SHA-256 019cba30b78b44b1…

MALICIOUS

PDF

70.0 KB Created: 2021-02-19 12:44:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6692e333d15d90b1cf6f8e3d4b67f80a SHA-1: 7a5a78a3f6c769bd1e0b8d42b1ece118b36f98d6 SHA-256: 019cba30b78b44b1eed911a5c0f62d95bf2d439f98c6e08d1edf4450fed2fcc8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/wix?keyword=balanced+unbalanced+forces+worksheet+pdf PDF link annotation
    • https://xotozefubineru.weebly.com/uploads/1/3/4/5/134576546/tumufemojuwuz-viwepari-kufusogafupavu.pdfIn PDF document text
    • https://cdn.sqhk.co/lewatesudo/xKjcejj/tumblr_girl_photoshoot_ideas.pdfIn PDF document text
    • https://repawuwo.weebly.com/uploads/1/3/5/3/135313919/konejepolon.pdfIn PDF document text
    • http://foxiwirilavisan.22web.org/zofoduzipoxopetuj.pdfIn PDF document text
    • http://avit0.cc/descargar_aplicaciones_android_pcca3x3.pdfIn PDF document text
    • https://wobereresexo.weebly.com/uploads/1/3/1/6/131606335/titotalevaxotuv.pdfIn PDF document text
    • http://ctuxuu.com/vorasafofodeziwinadarsa54.pdfIn PDF document text
    • https://wovugijewinekox.weebly.com/uploads/1/3/0/7/130739614/b4a149ab98.pdfIn PDF document text
    • http://lnstgramhelpcopyright.com/16351313211o7271.pdfIn PDF document text
    • http://revershjtb.site/92911366937ke6lq.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/wenobagupexekap/another_eden_apk_obb.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/sosidiwubibim.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/dawn_of_war_ultimate_apocalypse_tyranids_guide.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_off0000d564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD564 5588 bytes
SHA-256: b30a168d662af0390338132934ddf9643a883d40e3b06cad45dfff9b4db28bd7
font_01_sfnt_off0000e86e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE86E 10120 bytes
SHA-256: 2a1fd86ee6d7bb84f7a2da5113b2580c1dac7e60c8bae2a1a57b67254e75678d