Malicious PDF — malware analysis report

Static analysis result for SHA-256 89f426899b651471…

MALICIOUS

PDF

394.5 KB Created: 2023-10-19 13:17:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-01
MD5: b1a9ab16356893097df2cf04da1ff5c6 SHA-1: 494bd2391efd841502d0df10f8c2de6c0638ba01 SHA-256: 89f426899b65147128322a28c8d0b3afee158a759b6a1e6e510f900097cdb949
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9770

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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://sezevunolutavab.octort.co.za/4439124145505762756571?zaziwobesutafexiwilotipojoxezanenes=fasaburefemopidijuzunovufalasosikigugewutafofowivebaluvonalososagowoxoxefapubojetuboxajosimajifonugojibilegikutenevitazovulitenexomexudifokazububogetiluwumufejanatufurutesixikekuraxuvorivuwugidomafitifubajana&keyword=aquacal+heat+pump+reviews&dexogobipikesajanexewixapinonufijuwoladumimixaxejutugivopunugudijiveturifenizale=tamonomenebafupijuveraroziduwaruvumibifosanamijonivarogatigijezurodekujegusuketexovotanitibunakomesilozazibimoruzelunigukoxepavujewumamopuv In PDF document text
    • https://sezevunolutavab.octort.co.za/4439124145505762756571?zaziwobesutafexiwilotipojoxezanenes=fasaburefemopidijuzunovufalasosikigugewutafofowivebaluvonalososagowoxoxefapubojetuboxajosimajifonugojibilegikutenevitazovulitenexomexudifokazububogetiluwumufejanatufurutesixikekuraxuvorivuwugidomafitifubaPDF link annotation
    • https://sezevunolutavab.octort.co.za/4439124145505762756571?zaziwobesutafexiwilotipojoxezanenes=fasaburefemopidijuzunovufalasosikigugewutafofowivebaluvonalososagowoxoxefapubojetuboxajosimajifonugojibilegikutenevitazovulitenexomexudifokazububogetiluwumufejanatufurutesixikekuraxuvorivuwugidomafitifubajana&keyword=aquacal+heat+pump+reviews&dexogobipikesajanexewixapinonufijuwoladumimixaxejutugivopunugudijiveturifenizale=tamonomenebafupijuveraroziduwaruvumibifosanamijonivarogatigijezurodekujegusuketePDF link annotation
    • https://sezevunolutavab.octort.co.za/4439124145505762756571?zaziwobesutafexiwilotipojoxezanenes�saburefemopidijuzunovufalasosikigugewutafofowivebaluvonalososagowoxoxefapubojetuboxajosimajifonugojibilegikutenevitazovulitenexomexudifokazububogetiluwumufejanatufurutesixikekuraxuvorivuwugidomafitifubajana&keyword=aquacal+heat+pump+reviews&dexogobipikesajanexewixapinonufijuwoladumimixaxejutugivopunugudijiveturifenizale=tamonomenebafupijuveraroziduwaruvumibifosanamijonivarogatigijezurodekujegusuketexovotanitibunakomesilozazibimoruzelunigukoxepavujewumamopuvIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/89a8680b-1084-4b8a-87b2-2e1b2e31d2c4/nukujuselukekixeduxemizos.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/5133fe22-1d07-4522-8a0e-066568cac449/jitabilibovefet.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/2a6e1881-92ee-40ae-a557-e48d5852d8f8/wunozori.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64f83b928bb4cd73b015e832/652a1ca3422fddacbf0d29ef_32176138165.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/44707ee7-0024-43fb-b17d-9c2f1200cef6/2003acf8-4b9c-4071-a5e8-ff33953cf0c8.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/f28563ac-f3ad-4459-af07-f4c9bf70f0c4/18041246581.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64ede15e91d8114fdaa1dd51/652a1b97e4e95fb82fe9e4c4_32876400614.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/5b388985-c1ff-4231-956e-a7e2560d4921/436a3059-43bc-4e05-8c9f-86cef6d065f6.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/39e8157e-7f57-4f13-8ed8-34f74322890e/jurawasiro.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/2befec2a-def0-4f09-ac58-813a2d4dc6fa/downloads/what_does_it_mean_for_a_phone_to_be_jailbroken.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/2befec2a-def0-4f09-ac58-813a2d4dc6fa/downloads/xozewereba.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/2b0da116-dc71-4322-9597-f64430fcc0df/38957404933.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/8b0e6257-f2ff-4a97-aed6-50e74a820568/7f6d8719-b2c6-4076-a40b-fa9b51ea58e0.pdfIn PDF document text
    • https://jimdo-storage.global.ssl.fastly.net/file/ec0d249d-d1d2-4128-88c7-2fd942e324a4/34477919435.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0005d101.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005d101.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005d101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D101 11560 bytes
SHA-256: 843d38cd5740aa9b7a23e5b5b4e9a01de127bdba9eba201ae727f144d11a214d
font_01_sfnt_off0005ec7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC7B 17876 bytes
SHA-256: 0c9863abf44dff948d3724a116587cb5f2a6231940b9d190082de6643ddcf930