Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab34b7cce0086549…

MALICIOUS

PDF

71.9 KB Created: 2021-02-11 15:45:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c35a844e61f4cf07c4cb804bf8339ce0 SHA-1: 7d288d9b521ea031ce4faab0ff219597d749be30 SHA-256: ab34b7cce0086549352cdd838b1c38432d71ce85500aaacdcc05942fe93348b6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://jottigo.ru/wix?keyword=surgeon+sim+2+apk PDF link annotation
    • https://nitetawowi.weebly.com/uploads/1/3/5/3/135301411/8995334.pdfIn PDF document text
    • https://wezefumuge.weebly.com/uploads/1/3/4/6/134614004/givexolugox_fafunata.pdfIn PDF document text
    • https://bulugigedi.weebly.com/uploads/1/3/4/7/134714886/dimuzefigudazotekap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408348/normal_5fe29942c14bf.pdfIn PDF document text
    • https://sipovabamekejo.weebly.com/uploads/1/3/5/3/135391609/vogowefuw.pdfIn PDF document text
    • https://menudobuwowewil.weebly.com/uploads/1/3/4/7/134765252/devatif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427097/normal_601557291343a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484641/normal_5fe6266361ac4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369659/normal_6022f7a2875d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369331/normal_600dc028c04bd.pdfIn PDF document text
    • https://cdn.sqhk.co/lijipatalenu/e7gimhh/true_edge_edge_lighting_apk.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/vibuvomomuv/18247247552.pdfIn PDF document text
    • https://s3.amazonaws.com/padadutiseni/gasupozekewiw.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/65979351200.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/bennie_and_the_jets_piano_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/calligraphy_name_app_android.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_off0000da84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA84 5408 bytes
SHA-256: 9403c1d6c2271adb4aed5e5890e9dfc9fde65b0aa12d41d7fba1813fec59b992
font_01_sfnt_off0000ecd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD5 12116 bytes
SHA-256: 58a5fcfebe6835b7821d3687aa965122f2dcbea99956e57314fb3114d869af7e