Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0a12d38af815217…

MALICIOUS

PDF

71.2 KB Created: 2021-02-11 15:14:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8f941a13cfbb8704e8f44556ad3b4fff SHA-1: 5bec778111a1879c9ec4eea365c8a0b188e1fcab SHA-256: d0a12d38af8152172661d6fcaa75039123286db88411b8e5b2a0defe94edf6db
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=hink+pink+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4387815/normal_5ff209835ce56.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/7jawGY4/dexofox.pdfIn PDF document text
    • https://vigoxanumevu.weebly.com/uploads/1/3/4/4/134466257/pululurosusopemusap.pdfIn PDF document text
    • http://boviriso.22web.org/char_broil_performance_6_burner_grill_cover.pdfIn PDF document text
    • https://cdn.sqhk.co/korulifesewa/chgjdN6/42522865289.pdfIn PDF document text
    • https://vomizovuzib.weebly.com/uploads/1/3/1/6/131637161/542117.pdfIn PDF document text
    • https://cdn.sqhk.co/wefonasifaza/smajeXL/bemugaxox.pdfIn PDF document text
    • https://pafovawulawagi.weebly.com/uploads/1/3/4/5/134581771/245d80da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445750/normal_6021d363abf75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455883/normal_5fd77b7958fdd.pdfIn PDF document text
    • https://wesatelifap.weebly.com/uploads/1/3/1/8/131871597/e8ff08121.pdfIn PDF document text
    • https://bemujegifa.weebly.com/uploads/1/3/5/3/135312506/9631124.pdfIn PDF document text
    • https://sivipamekan.weebly.com/uploads/1/3/2/6/132682587/binikovezesijetano.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423155/normal_5ffe105e1495e.pdfIn PDF document text
    • https://cdn.sqhk.co/rawewosit/je7cEhg/kotewimefig.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418365/normal_5fc73db2e1203.pdfIn PDF document text
    • http://fogivuwekewelub.iblogger.org/rasazulogenat.pdfIn PDF document text
    • https://wazaxilam.weebly.com/uploads/1/3/4/7/134726650/wepeb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bibikefogive.epizy.com/american_thyroid_association_guidelines_for_thyroid_nodules.pdfIn PDF document text
    • http://gugujis.epizy.com/ultra_high_graphics_android_games_list.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_off0000dbfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFA 4900 bytes
SHA-256: cf6802cf5b84f480823b8941092a47a6f39183d6320e5c17e0ac8a7cd25a62b8
font_01_sfnt_off0000ecc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC1 10212 bytes
SHA-256: 6d9ebf2ce001a8f9ab9ccdbb9367cd12d6699afce8726a134cb3e5b485518605

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