Malicious PDF — malware analysis report

Static analysis result for SHA-256 9653a0eb84a65bea…

MALICIOUS

PDF

69.8 KB Created: 2021-03-04 23:54:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 1ab2441ed9ddd0f3ededbaa73096d991 SHA-1: 88cda7f679058dd50b841be6e2ce3b8cfb2b2dbb SHA-256: 9653a0eb84a65bea29fee909bea587ba2177cabaf2a470bdd7ba465d5cadf81f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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://xezojetit.ru/award?keyword=what+to+do+if+you+eat+too+much+junk+food PDF link annotation
    • https://cdn.sqhk.co/baxalelizop/ehaThet/home_buying_classes_in_cleveland_ohio.pdfIn PDF document text
    • http://furafofuvobomu.22web.org/burger_king_coupon_mai_2019.pdfIn PDF document text
    • https://bolumuratojepo.weebly.com/uploads/1/3/4/7/134749128/renuzuv.pdfIn PDF document text
    • https://cdn.sqhk.co/gukisafuw/FphgjbW/java_push_pop_stack_example.pdfIn PDF document text
    • https://pilinuxuxip.weebly.com/uploads/1/3/2/8/132814996/gorejifowif-muzokoz.pdfIn PDF document text
    • https://kavirozix.weebly.com/uploads/1/3/3/9/133999962/4716426.pdfIn PDF document text
    • http://wukifiduputafeb.22web.org/mekunudefewazux.pdfIn PDF document text
    • http://keepqifi.site/47660302395ldome.pdfIn PDF document text
    • https://cdn.sqhk.co/dediwifime/xJhietK/pandemic_like_game_app.pdfIn PDF document text
    • https://wamogipoko.weebly.com/uploads/1/3/0/7/130739383/muwedol.pdfIn PDF document text
    • https://nogigeto.weebly.com/uploads/1/3/4/6/134665346/2562510.pdfIn PDF document text
    • http://badge-verification-center.com/99266213909f8jsp.pdfIn PDF document text
    • https://cdn.sqhk.co/jogepirar/hbhQIgV/fapakajinu.pdfIn PDF document text
    • https://cdn.sqhk.co/daposofoxig/ibieiik/lirepa.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/fodose/how_to_reset_sagemcom_router_password.pdfIn PDF document text
    • http://kutelitowolobe.rf.gd/design_for_powerpoint_presentation_2010_free.pdfIn PDF document text
    • https://535a9070-e28a-464b-adc5-c02ad08be00b.filesusr.com/ugd/9df9d6_fce17eb760064492b3f5a57634e80df1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/25800846687.pdfIn PDF document text
    • https://625f08e2-3d8e-45b5-8e8c-b95d001c5c7c.filesusr.com/ugd/d94ae5_16d36e3af4374252911bf011437b8b7f.pdf?index=trueIn PDF document text
    • http://nifagusimesizi.epizy.com/ring_size_guide_app.pdfIn PDF document text
    • http://zevofelajasuz.epizy.com/bible_quotes_in_telugu.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_off0000d091.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD091 5208 bytes
SHA-256: b41c66c75efa5ad1a536c764c5c660f1ed08e9f4bc26b05c4c5ffea750b8fac0
font_01_sfnt_off0000e246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE246 12192 bytes
SHA-256: bec4fb8c171dad9300501b6dd53b2622437853b23f5260e95424fa8a3a17b57b