Malicious PDF — malware analysis report

Static analysis result for SHA-256 fec08e6e8d372a46…

MALICIOUS

PDF

65.2 KB Created: 2021-02-26 16:20:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c97dbd2c0f575f05c62bfba7ad49e17d SHA-1: 6f5f67a9d87d296c51a077451be6e480169d7a59 SHA-256: fec08e6e8d372a461c30288c5c67ae1bbfab1155713877651afbfe749b2b7f13
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://baarspo.ru/award?keyword=lang+leav+books+price+ph PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384819/normal_603727a2ec3d6.pdfIn PDF document text
    • http://wapividazofar.scienceontheweb.net/12706253237.pdfIn PDF document text
    • http://xemizawufogutuf.scienceontheweb.net/paxomepogemuxugojo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487186/normal_60150312a8376.pdfIn PDF document text
    • http://amandeepsadyora.com/946385945539r3qz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489713/normal_6011366098bf6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382208/normal_600e42cad3583.pdfIn PDF document text
    • http://soxiwokix.iblogger.org/what_is_the_summary_of_the_nightingale_and_the_rose.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418777/normal_5ffd24149179a.pdfIn PDF document text
    • https://cdn.sqhk.co/noneniwetav/he0geOs/bubble_pop_sound_effect_free_wav.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497369/normal_5fc89c2c02152.pdfIn PDF document text
    • http://streamsweets.com/32793185753ilt9y.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459325/normal_5ffa1c7a8f262.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxunoromi/sWgdGKq/todd_rundgren_albums_youtube.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c38b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC38B 5400 bytes
SHA-256: 6e354010769feba7f92926ae683bd5e2310dce428e5e23d1e83a078e5d8b84cb
font_01_sfnt_off0000d5f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5F0 9948 bytes
SHA-256: 524f5757da5b56721dd6aa639709c8985b60dbd71dec7af8ab671a6c708f6505