Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f0d6829b919e572…

MALICIOUS

PDF

74.4 KB Created: 2021-02-23 05:27:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 522ccb8649619026b4a93e6f4af99625 SHA-1: bca715d8baea8f0e69e695654d2c323e2a904926 SHA-256: 0f0d6829b919e572304b41b695d96585a17b96222e732e5892429518500d595e
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 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.
  • 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://yafferge.ru/shook?utm_term=super+sniper+efi+dual+quad In PDF document text
    • https://surigogalabilix.weebly.com/uploads/1/3/5/9/135961506/towojobewu_mawuwokexabamo.pdfIn PDF document text
    • http://japancar-sib.ru/ford_5030_service_manualzxcsg.pdfIn PDF document text
    • http://meetdouche.xyz/befagopafiturijamaxemc4jx1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449783/normal_60292e5a8a62e.pdfIn PDF document text
    • http://antileqphh.site/55613628949aikt3.pdfIn PDF document text
    • https://rejudizik.weebly.com/uploads/1/3/4/7/134701546/0d5fa920f.pdfIn PDF document text
    • https://kazubuxupopa.weebly.com/uploads/1/3/2/6/132696048/koxozonusipujijofaw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411708/normal_5ffc593644189.pdfIn PDF document text
    • http://hookup153.space/lifalojadig3qhcg.pdfIn PDF document text
    • http://naturalm.space/gta_online_activation_codeae16f.pdfIn PDF document text
    • https://vipapixamez.weebly.com/uploads/1/3/0/8/130814430/7fd778972ca6e8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://goxafufi.rf.gd/elementos_quimicos_solidos_liquidos_y_gaseosos_de_la_tabla_periodica.pdfIn PDF document text
    • http://jozeratajugik.rf.gd/toefl_vocabulary_test_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/action_plan_document_template.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/14021514569.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_off0000e549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE549 5264 bytes
SHA-256: c1f8ba2d9028dce9850e7e37caff1c5170ccfa2baaaf3671bba205e52bb65661
font_01_sfnt_off0000f73c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF73C 11196 bytes
SHA-256: 09448dc44715170f50865718da0a11d485724448f65a0d6fe0936682e80325bd