Malicious PDF — malware analysis report

Static analysis result for SHA-256 560ef74d9f59d912…

MALICIOUS

PDF

69.4 KB Created: 2021-01-04 15:46:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 44a63373657eaf7a5c177ae94823ab7b SHA-1: 3fff25968be20249abd6321039069c86c4cf05c0 SHA-256: 560ef74d9f59d912ddd20488df9c7daec9cce2f9934fa4a3f5a80d6324f5b268
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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.
  • 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://traffset.ru/wb?keyword=alliance%20service%20professionals%20llc PDF link annotation
    • https://bufujibuku.weebly.com/uploads/1/3/4/8/134862056/f4a38.pdfIn PDF document text
    • https://cdn.sqhk.co/wirujurumugi/gdvkifD/opiniones_excursiones_para_cruceros_shore2shore.pdfIn PDF document text
    • https://nojarotawufa.weebly.com/uploads/1/3/4/3/134313922/jamuvigesivotilufapa.pdfIn PDF document text
    • https://vidajubobulixi.weebly.com/uploads/1/3/4/6/134650234/fowef.pdfIn PDF document text
    • https://duzigavejad.weebly.com/uploads/1/3/4/5/134513143/lodaxomu_fibega_doguwixexidazu.pdfIn PDF document text
    • https://cdn.sqhk.co/dodagirojep/c7LG1hg/28553789719.pdfIn PDF document text
    • https://cdn.sqhk.co/veleviziwew/URyeR5v/gonerupivupoxubodo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460228/normal_5ff2dc6d72e56.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/jiwisigetizoxif/jawufuminodapesozufe.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/xumawofamebadagerovejaro.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/informasi_saham_bursa_efek_indonesia.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/81485460957.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/skype_for_business_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/bt_home_hub_4_setup_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/baladoor_telugu_movie_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_off0000d20f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD20F 5060 bytes
SHA-256: 27ddfd33f66f4f52603b93f7123ef61585915659101c2e1e093d4ec50a8184f9
font_01_sfnt_off0000e35c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE35C 11140 bytes
SHA-256: 3eb20bfd77b785efd00d11f90e5848fb9cc337fff1fe9f9377f7b1f7e668593e