Malicious PDF — malware analysis report

Static analysis result for SHA-256 12156d729346534a…

MALICIOUS

PDF

74.2 KB Created: 2021-01-12 02:43:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: df8b310091cbb505a29e3a33666c5e3c SHA-1: bed02dcd6afb600b91209a3707468659ba88eb04 SHA-256: 12156d729346534a2059a463ce3f9ff5f38b02f8c1c5b0df7f74f520ca8ea442
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://traffset.ru/wb?keyword=age%20of%20empires%202%20hd%20the%20forgotten%20campaigns PDF link annotation
    • https://site-1199825.mozfiles.com/files/1199825/70109996198.pdfIn PDF document text
    • https://site-1176955.mozfiles.com/files/1176955/jolteon_pokemon_quest.pdfIn PDF document text
    • https://zefakibafiv.weebly.com/uploads/1/3/1/3/131383453/5cb20b5ec901e52.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446036/normal_5ff13b923dcb1.pdfIn PDF document text
    • https://rirulejirosajis.weebly.com/uploads/1/3/4/3/134320684/5127729.pdfIn PDF document text
    • https://labajilawuja.weebly.com/uploads/1/3/1/4/131406369/6551282.pdfIn PDF document text
    • https://site-1174582.mozfiles.com/files/1174582/scary_movies_on_hulu_and_netflix.pdfIn PDF document text
    • https://niwurakoj.weebly.com/uploads/1/3/4/5/134588258/jinetinajob.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454055/normal_5fc8c2fea0493.pdfIn PDF document text
    • https://lavabowigu.weebly.com/uploads/1/3/2/6/132682694/2816083.pdfIn PDF document text
    • https://cdn.sqhk.co/gabamulijawe/hfgkjcy/potstickers_in_chinese_writing.pdfIn PDF document text
    • https://site-1172290.mozfiles.com/files/1172290/xadutemofubunok.pdfIn PDF document text
    • https://site-1174959.mozfiles.com/files/1174959/grand_prix_story_2_form.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/midizaxopazeji/latest_amendment_bonus_act_1965.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/spider_man_google_docs_mp3.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_off0000ddfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDFC 5656 bytes
SHA-256: 289d3a671753ecb6b0e7d88e680407aaedc53bdc87578a3ca347029ec466ce62
font_01_sfnt_off0000f11b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11B 13388 bytes
SHA-256: 9cada080685465b1e6b67a9b369fc80528c8c0b0a6002f36e7a63fef8e8605e4