Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6d701da60e9ec6…

MALICIOUS

PDF

79.6 KB Created: 2022-03-31 13:46:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: cf219f568d2e1a4b56ffb63cfc50ab2e SHA-1: ffe0ba9cf163e52655d1f72310fc219a47de1ac5 SHA-256: 8f6d701da60e9ec6f278a4a637e8796daef721b0431bb3c00544d9463063263a
266 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

Heuristics 8

  • 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.
  • 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.
  • 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.
  • 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://norin.co.za/YmrXLWy8?keyword=matlab%20handbook%20pdf%20free%20download PDF link annotation
    • https://fizobadajavene.weebly.com/uploads/1/3/4/4/134492874/fobubed.pdfIn PDF document text
    • https://tigoxugijiwubaz.weebly.com/uploads/1/3/4/3/134315710/mokexirifuruki_beporevukipu.pdfIn PDF document text
    • http://www.e-glasso.pl/galeria/files/xozedopotelamepul.pdfIn PDF document text
    • https://fetedujas.weebly.com/uploads/1/3/0/7/130776810/nupoposojinigegidol.pdfIn PDF document text
    • http://mkbeauty.vn/luutru/files/25048481549.pdfIn PDF document text
    • https://fawewetipe.weebly.com/uploads/1/3/1/3/131379545/971cea.pdfIn PDF document text
    • https://tiger-security.net/webroot/upload/files/30943784073.pdfIn PDF document text
    • https://ragenakesigufu.weebly.com/uploads/1/3/2/7/132740294/6254482.pdfIn PDF document text
    • http://www.investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/taburagovoleku.pdfIn PDF document text
    • https://volatofe.weebly.com/uploads/1/3/4/4/134442598/gomebiselomefitajun.pdfIn PDF document text
    • http://eko-gospodarstwo.eu/files/file/teluselawewux.pdfIn PDF document text
    • https://rofizikijomosuj.weebly.com/uploads/1/3/4/0/134012810/fifidopimokiwo-lijidukimobofev.pdfIn PDF document text
    • http://www.peretprod.ro/content-images/file/61538657562.pdfIn PDF document text
    • https://loroxiboziniluz.weebly.com/uploads/1/3/4/4/134402159/3342324.pdfIn PDF document text
    • http://kool-house.com/upload/editor/file/75573880505.pdfIn PDF document text
    • https://kinojakabajowus.weebly.com/uploads/1/3/4/7/134774968/37aa7.pdfIn PDF document text
    • https://baxawomegofagu.weebly.com/uploads/1/3/2/8/132815114/rakuxaba.pdfIn PDF document text
    • https://telozigigozato.weebly.com/uploads/1/3/4/3/134310186/vuned.pdfIn PDF document text
    • https://internationallanguagenavigators.com/media/vanemogidorimafudotetuw.pdfIn PDF document text
    • https://www.synergyom.com/kcfinder/upload/files/24846555869.pdfIn PDF document text
    • https://wakabidodez.weebly.com/uploads/1/3/4/6/134632857/6840b2.pdfIn PDF document text
    • http://servis-hradec.cz/files/file/45826523194.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_off0000bc6f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bc6f.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bc6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC6F 10644 bytes
SHA-256: 7233150acbe466a026e085d13d94e6cdc74817fcdb12afdb4eb8f3e1f307530f
font_01_sfnt_off0000d48b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD48B 17108 bytes
SHA-256: 73a09e96dfa34958befb96d4c9c5984dbd9215c9c7c08b1bb181790062ea0915
font_02_sfnt_off00010174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10174 16480 bytes
SHA-256: f1d940b2ab9ff85f2deab49caadc5a5e7f7d916b0a1016972d86ee187bb175e9
font_03_sfnt_off000117f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117F6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1