Malicious PDF — malware analysis report

Static analysis result for SHA-256 e884a4e288f40307…

MALICIOUS

PDF

70.7 KB Created: 2021-03-03 15:14:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 12bc23e39f69552f5b673cf96608a6ed SHA-1: 70a0b0ed1e57028d4c605549fc3f8428c636b836 SHA-256: e884a4e288f40307b068c283136620594dc47d9ca51e0b3839d43a4238382a66
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://botokaw.ru/award?keyword=unicorn+magic+book+series PDF link annotation
    • http://reweder.site/bersa_thunder_9_hc_pro_holster0uzzr.pdfIn PDF document text
    • https://zugixipenelir.weebly.com/uploads/1/3/4/5/134591811/wamugunubozeso_jupiditiloveri.pdfIn PDF document text
    • http://fibipowokogo.sportsontheweb.net/how_to_reset_tws_airpods_pro.pdfIn PDF document text
    • https://jositaloj.weebly.com/uploads/1/3/4/0/134042718/28a3c.pdfIn PDF document text
    • http://solapp.xyz/avital_ronell_the_telephone_bookbjrlg.pdfIn PDF document text
    • https://tavifarexup.weebly.com/uploads/1/3/4/6/134611028/lidedezus.pdfIn PDF document text
    • https://lomewulepizava.weebly.com/uploads/1/3/3/9/133999744/noduzozerawugosan.pdfIn PDF document text
    • http://bidizujimon.getenjoyment.net/scag_mowers_for_sale_in_alabama.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/best_pll_algorithms.pdfIn PDF document text
    • https://jamiwimavebu.weebly.com/uploads/1/3/1/4/131453695/985010e310dc765.pdfIn PDF document text
    • https://betamomaj.weebly.com/uploads/1/3/2/6/132695924/sefobudesugotaz.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/muxozuvalubi/armored_core_5_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/xejojutoxemurebeterodabos.pdfIn PDF document text
    • http://widifusi.myartsonline.com/calories_in_taco_bell_shredded_chicken_soft_taco.pdfIn PDF document text
    • https://s3.amazonaws.com/memobofilenabon/happy_diwali_animated_images_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_off0000da5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA5D 5284 bytes
SHA-256: 7d6936cc0d70915a030024d5e4fb589ef1f148ade0af8b891a49274af72935fb
font_01_sfnt_off0000ec3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC3F 9940 bytes
SHA-256: 0e754245f587ece442ef6a31b9966bd8621aaefc1069e462e4f81c457cb1c9ca