Malicious PDF — malware analysis report

Static analysis result for SHA-256 57ed0dad640d1e07…

MALICIOUS

PDF

75.1 KB Created: 2021-02-06 20:33:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3968971af4db3ffc0cabf0bd5636d9a7 SHA-1: 583189ff5aa7a42233edc9446a22f0c457a45915 SHA-256: 57ed0dad640d1e07e3fcc5d082321644bc44ec25d2ab7bf8c8458573350a7f47
186 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.
  • 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://maypoin.ru/123?utm_term=banks+vernonia+trail+map PDF link annotation
    • http://richmaya.site/pekekokebom4tqrf.pdfIn PDF document text
    • https://bozaxemavokasum.weebly.com/uploads/1/3/1/3/131383719/bubodaveto_pajekotavixale_kasinalikexu_zebin.pdfIn PDF document text
    • http://meblik.su/tamagotchi_p1_life_cycle1eelr.pdfIn PDF document text
    • https://cdn.sqhk.co/loxinesupiva/gghejfC/96787389412.pdfIn PDF document text
    • https://cdn.sqhk.co/xemugugafot/Ln2ihhc/bollywood_romantic_ringtone_download_2020.pdfIn PDF document text
    • http://collegegraduatecentraldating.com/kigerosugatirufavonezal4fs.pdfIn PDF document text
    • https://vijapuloxo.weebly.com/uploads/1/3/0/7/130775263/6767910.pdfIn PDF document text
    • https://barefofu.weebly.com/uploads/1/3/4/4/134492989/e95295e65069d3.pdfIn PDF document text
    • https://cdn.sqhk.co/mowasikuso/jdZbgeb/basic_woodworking_class_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/bugininaxi/sMvojhs/juego_metal_slug_para_xbox_360.pdfIn PDF document text
    • http://bestplacefor.rest/29375432374j51t6.pdfIn PDF document text
    • https://cdn.sqhk.co/tijovomiv/hVuPKjb/ted_baker_glasses_b894.pdfIn PDF document text
    • http://torchqbfl.fun/la_biblia_de_barro_gratis895p3.pdfIn PDF document text
    • http://wordsideget.top/zuxomurunulp3gse.pdfIn PDF document text
    • https://cdn.sqhk.co/fopujetoros/mGgdRhg/48658812141.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/bogeguva/evidence_based_practice_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/dry_cleaning_postcard_template.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/58934365295.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_off0000e99a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE99A 5140 bytes
SHA-256: 790907577a0f2e0d6d0dd034267402cc0ca4d5cb02a974722921d7e0fcc4d858
font_01_sfnt_off0000fb08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB08 10720 bytes
SHA-256: 3e84872a827c8b04dc0a006bbf5211c444cf5c1f06fbf191472a160f46ab44f0