Malicious PDF — malware analysis report

Static analysis result for SHA-256 71cab7235fd65294…

MALICIOUS

PDF

76.2 KB Created: 2021-03-31 07:24:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 167d0d5b270e1a8c11257e41577fbed5 SHA-1: d6102ed30182e1db2fb7c2967d66ac8a1cd74c5c SHA-256: 71cab7235fd652945a91274563765b9c94427e085711821122f682e74b046df3
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/123?utm_term=movies+2017+hollywood+free
    • https://pexulowiseguwuz.weebly.com/uploads/1/3/4/3/134391342/4147261.pdf
    • https://kenaveduku.weebly.com/uploads/1/3/0/8/130813649/vekadejalabopediw.pdf
    • https://pasugewu.weebly.com/uploads/1/3/1/0/131071180/9392443.pdf
    • https://takadoturig.weebly.com/uploads/1/3/4/1/134108809/fatigopemisim-pogofuxuxub.pdf
    • http://albatros-trans.ru/93917243663jdqhq.pdf
    • https://xadigepuve.weebly.com/uploads/1/3/1/4/131454317/2301264.pdf
    • https://nigizamizu.weebly.com/uploads/1/3/4/3/134319440/4773772.pdf
    • http://granitmetrospecstroy.ru/venisatqushh.pdf
    • https://ropexosuwewi.weebly.com/uploads/1/3/1/3/131380205/vonepewilibupo.pdf
    • https://funifagokose.weebly.com/uploads/1/3/2/6/132681236/gegalegi-vifid.pdf
    • https://foderojev.weebly.com/uploads/1/3/4/0/134041652/c9ada501a4aa809.pdf
    • https://xuwogufovesuvem.weebly.com/uploads/1/3/1/4/131406895/2635947.pdf
    • https://dopitusorotid.weebly.com/uploads/1/3/0/7/130738794/rurefitidud-rawivaxiwebebo-xisoju.pdf
    • http://clubstore.pro/what_are_the_12_elements_of_music_and_their_definitiondqgef.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xubifupi/xezubewemivuxuren.pdf
    • https://uploads.strikinglycdn.com/files/cc43c003-2846-4a7a-bc1c-5ad4f5413ad0/batosabegulidoz.pdf
    • https://uploads.strikinglycdn.com/files/877ba8fd-dc03-452d-bed6-613a8559dbbb/what_is_quantum_jump.pdf
    • https://s3.amazonaws.com/sasufufa/cube_of_a_binomial_worksheet.pdf
    • https://s3.amazonaws.com/dipafuxe/xelekolefovox.pdf
    • https://s3.amazonaws.com/wotodedaruzuk/nefapupiv.pdf
    • https://s3.amazonaws.com/jipowumat/2627880979.pdf
    • https://uploads.strikinglycdn.com/files/dd157582-0a6d-409f-8eb8-b80a789f1ff0/36696252640.pdf
    • https://uploads.strikinglycdn.com/files/2b2db8fa-0a5f-4f69-ba90-cabef83c9c83/summer_infant_baby_monitor_no_signal.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eae5.bin
720119a301a68bcdcd9685e1505d41b0247bf7b687c1ecdea8871b3d4655ccab
pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE5 5448 bytes
font_01_sfnt_off0000fdae.bin
d8394efe0be454fb7ef5cf77367cf91d17016407adc196da11681a5d9886259f
pdf-font-stream PDF embedded font (sfnt) at offset 0xFDAE 11052 bytes