Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaeec074593ddaae…

MALICIOUS

PDF

66.1 KB Created: 2021-02-21 21:23:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 716ae6bb3e32d109861b6fa611146bc6 SHA-1: adac0fb380cd2c0073755925a2b420758e332877 SHA-256: aaeec074593ddaae14484a9fc6922f7fc9451fa679f258516e87d873c316c122
244 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=earnest+money+receipt In PDF document text
    • https://fofumizuzel.weebly.com/uploads/1/3/2/7/132740209/b93bd6f.pdfIn PDF document text
    • https://pozufijuxib.weebly.com/uploads/1/3/0/7/130775557/9784967.pdfIn PDF document text
    • https://cdn.sqhk.co/mobixipotex/hagctgh/duzixometitanewab.pdfIn PDF document text
    • https://jesisime.weebly.com/uploads/1/3/4/8/134886507/3f6d40f6745a9.pdfIn PDF document text
    • https://cdn.sqhk.co/vovomafejuwa/KMje3ii/zombie_chase_games_for_free.pdfIn PDF document text
    • https://cdn.sqhk.co/naxetimi/g3Bb2hi/jaxew.pdfIn PDF document text
    • https://wakukorukizine.weebly.com/uploads/1/3/2/7/132712206/mulanigewenok.pdfIn PDF document text
    • https://cdn.sqhk.co/xedasuzefer/dGm9JsG/napewunovepafumogidufupi.pdfIn PDF document text
    • https://risovokoxenixe.weebly.com/uploads/1/3/3/9/133997247/809dda074f.pdfIn PDF document text
    • https://cdn.sqhk.co/modesinilofe/vjddOQ9/marble_mission_game_online.pdfIn PDF document text
    • https://cdn.sqhk.co/xewimoziwuvo/elgj4nC/73180464607.pdfIn PDF document text
    • https://cdn.sqhk.co/zakolemafemo/Khfgchh/linkin_park_discography_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/gixezovof/jP2e1Vt/happiness_definition_synonyms_and_antonyms.pdfIn PDF document text
    • https://cdn.sqhk.co/wuxaguzifep/hf8jeif/33305523898.pdfIn PDF document text
    • https://cdn.sqhk.co/safovokon/y4Ggfif/75385369922.pdfIn PDF document text
    • https://litukepulaj.weebly.com/uploads/1/3/4/8/134863372/kevoleni_rojiniwivak.pdfIn PDF document text
    • https://nojasiputijaze.weebly.com/uploads/1/3/4/8/134869787/nujonumosilimet-furajuza.pdfIn PDF document text
    • https://cdn.sqhk.co/mowezeto/ugpKghg/dj_bottle_telugu.pdfIn PDF document text
    • https://buwipifigidorip.weebly.com/uploads/1/3/0/8/130813409/bizuvumozu.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_off0000c733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC733 5104 bytes
SHA-256: 3a92ca6ac52a92421e3efa0e7aebda4081aede116a322a75187dc88c6f9e709c
font_01_sfnt_off0000d885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD885 10344 bytes
SHA-256: 547283dbc97085395237c42ce0ec35b732c9eaa1c8cacf78412736cbe01079e9