Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f05f4578bf55d6d…

MALICIOUS

PDF

67.1 KB Created: 2021-02-13 00:28:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e81225c97de6472fb39a3b93c6e41e3d SHA-1: 95fcfcb9023176c531bb3ebe240eb27d63e979b5 SHA-256: 9f05f4578bf55d6d652e5b9bc4967f170e7ca9d44383b6d82e1f99456562b3cb
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://seumenha.ru/wix?keyword=athens+retina+center PDF link annotation
    • http://puwuditufu.22web.org/pulse_secure_client_link.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/burjiTL/84653289851.pdfIn PDF document text
    • http://pafiwuz.66ghz.com/neutropenic_sepsis_guidelines_nhs.pdfIn PDF document text
    • https://cdn.sqhk.co/kelufuro/6ienih1/shark_4k_video_live_wallpaper_download.pdfIn PDF document text
    • https://nevutero.weebly.com/uploads/1/3/4/7/134716167/roxofubovuladu_diseloboz.pdfIn PDF document text
    • https://fusufuxono.weebly.com/uploads/1/3/1/6/131606103/66ffb337bd0ffa9.pdfIn PDF document text
    • https://cdn.sqhk.co/fosulavale/dstiblg/69835267693.pdfIn PDF document text
    • https://cdn.sqhk.co/firataxoworo/VSrheTC/10598170010.pdfIn PDF document text
    • https://cdn.sqhk.co/takularozo/hcNigR4/ice_cream._cake_recipe.pdfIn PDF document text
    • https://cdn.sqhk.co/duzemata/WsPZ9hi/radio_rock_and_pop_online_gratis.pdfIn PDF document text
    • https://jubabanijawema.weebly.com/uploads/1/3/1/0/131070146/318076.pdfIn PDF document text
    • http://damodudajipofem.22web.org/konezakebedunaxadad.pdfIn PDF document text
    • https://cdn.sqhk.co/rubekafux/1jigxgj/glass_tower_mobile_game.pdfIn PDF document text
    • https://dakewamegiru.weebly.com/uploads/1/3/5/3/135305658/mefesujita.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zemonipovop.epizy.com/astitva_band_songs_free.pdfIn PDF document text
    • http://rodesodekisivu.rf.gd/ensayo_del_bogotazo.pdfIn PDF document text
    • http://rizigive.epizy.com/cabin_fever_movie_tamil_dubbed_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/plantar_fascia_anatomy.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/4768830594.pdfIn PDF document text
    • http://goguvero.epizy.com/6622969052.pdfIn PDF document text
    • http://sesoxevanadike.epizy.com/wokexirewopegiza.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/dhakad_chhora_full_movie_filmywap.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/outlook_all_attachments_rule.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_off0000ce09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE09 4844 bytes
SHA-256: a5eb740fa1f0a98c688fc67bf946846a123f71f6cf657973eb5cc4506e39568b
font_01_sfnt_off0000de74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE74 9480 bytes
SHA-256: df52bbffeb5b550956934d9219c876b8bf5bfae05a0a3197c30c24ec3ce2d842

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