Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e5ae085c9fe9871…

MALICIOUS

PDF

107.9 KB Created: 2021-03-08 08:38:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 1f36cee10f736dd7e16d499147a9fff1 SHA-1: 811e5e4d5048b4c65c12387560f1a47e67003b81 SHA-256: 7e5ae085c9fe9871e0e13ec108291cc5359738259ddfd177f3939c972ef36c04
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many hosted on disposable domains, suggesting a link farm or phishing operation. The presence of a URL related to 'ocarina of time beta quest rom download' indicates a lure to attract users. ClamAV detection and ML classification strongly indicate malicious intent, likely related to phishing or malware distribution via these links.

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://nipisod.ru/wix?keyword=ocarina+of+time+beta+quest+rom+download PDF link annotation
    • http://keniworu.mywebcommunity.org/harley_davidson_service_price_list.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/94344822652.pdfIn PDF document text
    • http://worameruvejaka.mywebcommunity.org/77898509738.pdfIn PDF document text
    • https://cdn.sqhk.co/vasibejovej/aAHXhbv/37993808254.pdfIn PDF document text
    • https://cdn.sqhk.co/jidevumedure/gcZgcjg/boninesafakalusabe.pdfIn PDF document text
    • http://tapagigozi.medianewsonline.com/dagewa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cb2d4818-2134-4ea5-ae57-1bc45cfc4292.filesusr.com/ugd/7e787c_6c982c2d75d348feac57a276761f20f3.pdf?index=trueIn PDF document text
    • http://kegigija.atwebpages.com/26288932296.pdfIn PDF document text
    • http://woranuganavot.myartsonline.com/los_protocolos_de_los_sabios_de_sion_casa_del_libro.pdfIn PDF document text
    • https://04934832-22f3-474e-96de-b9d593e92251.filesusr.com/ugd/f390e7_226cb15fa8764e79976c92355132fba8.pdf?index=trueIn PDF document text
    • https://ddb281da-11d2-423e-b83a-408ecf1f607f.filesusr.com/ugd/9db61c_a4486e0db0e14a97b17494267ecd2576.pdf?index=trueIn PDF document text
    • https://ca108e69-7b6b-43f0-8f16-d96ebeb8a33d.filesusr.com/ugd/79e0dc_bcf0beebfb334333809db255ffac26f3.pdf?index=trueIn PDF document text
    • https://7b9449e5-51e9-4a7e-81f5-8587c42320f9.filesusr.com/ugd/571bad_bd6726588e87433b888ee653bb564923.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/najubu/mozeketazaridedasivopu.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/jifulosilepunetogulajogam.pdfIn PDF document text
    • http://nufiwimuzobo.onlinewebshop.net/clock_templates_to_print.pdfIn PDF document text
    • https://66f9c2bc-82a6-463d-9ccd-9c94d3d8805e.filesusr.com/ugd/b361c6_ed6196a5b80b45108d322271201d8a6d.pdf?index=trueIn PDF document text
    • https://d54d55f4-8004-4613-9f19-7b96cbed0ae7.filesusr.com/ugd/ce4b32_d371bba8f1de405fa89ac29fb45de72f.pdf?index=trueIn PDF document text
    • https://bcd7deca-fd5d-492b-a220-d373ca515bc9.filesusr.com/ugd/12f4eb_aecaeee84f7040f39c4efd2c0d182d91.pdf?index=trueIn PDF document text
    • http://nebojemesiwi.atwebpages.com/47827473498.pdfIn PDF document text
    • https://s3.amazonaws.com/pokixovuxik/pokemon_go_appraise_guide_reddit.pdfIn PDF document text
    • https://8488b7ac-84bc-45ae-88ed-26841205fc59.filesusr.com/ugd/7cda3c_be26b269bc8c4cc39409c210359cea0a.pdf?index=trueIn 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_off00016849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16849 5552 bytes
SHA-256: bab1c45c427f49e5daa0d7cc4ab246302d7b180c4554a6be6ac1ce454666c3b8
font_01_sfnt_off00017b1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17B1D 11900 bytes
SHA-256: e637b89505502b6c43be1fadfc6565a5aba4101073210e29a5dd6767a9d47f95