Malicious PDF — malware analysis report

Static analysis result for SHA-256 08fa1e39ee4fa6f6…

MALICIOUS

PDF

71.7 KB Created: 2021-02-12 02:42:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 82c8b7e70811fcbdc8f99ea439e3c7c6 SHA-1: 4d1d1b8f422371ffc1848205ba7996689dd6fef5 SHA-256: 08fa1e39ee4fa6f6c9952e7e8969545df5d2a0ba57fa7543e8e1da940fdfa905
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 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=skyrim+magic+scaling In PDF document text
    • https://manoxumumaxu.weebly.com/uploads/1/3/4/4/134472756/jepogiga.pdfIn PDF document text
    • https://cdn.sqhk.co/xedufoga/AgfgewL/15105028618.pdfIn PDF document text
    • https://fafamamijusoma.weebly.com/uploads/1/3/4/3/134371196/53fc548.pdfIn PDF document text
    • http://probmaka.tech/panasonic_hc-wxf991_manualny86p.pdfIn PDF document text
    • http://jebumivusesujan.iblogger.org/alpine_docker_image_apk_not_found.pdfIn PDF document text
    • http://info-pages.ru/17368986445z1mqh.pdfIn PDF document text
    • https://zimizediregewoj.weebly.com/uploads/1/3/4/0/134040679/422841.pdfIn PDF document text
    • https://cdn.sqhk.co/luwosera/ibujdzl/5178429326.pdfIn PDF document text
    • http://tejajugumoneton.66ghz.com/binomische_formeln_ausmultiplizieren.pdfIn PDF document text
    • https://kexexetipo.weebly.com/uploads/1/3/4/8/134897314/fcf7e2396785.pdfIn PDF document text
    • https://sujepofuk.weebly.com/uploads/1/3/0/7/130775011/fadenowimabol-todup.pdfIn PDF document text
    • http://6gusevshop.space/873051280831iwn2.pdfIn PDF document text
    • http://sayfelengs.space/commercial_loan_commitment_letter_templatedqjwv.pdfIn PDF document text
    • https://cdn.sqhk.co/zujubiviv/o0ihjjV/92923135500.pdfIn PDF document text
    • https://cdn.sqhk.co/monasomeb/ghcibjf/gun_jumping_in_merger_control_concurrences.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mijugavagi.epizy.com/14720712516.pdfIn PDF document text
    • http://mepulufe.epizy.com/love_you_animated_gif.pdfIn PDF document text
    • http://jiwabesufag.epizy.com/themes_in_literature.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_off0000dd0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0F 5388 bytes
SHA-256: e89c7cee89f73134800a7e66a852674c97ba85f1aa4f037036e65e06c3b921b9
font_01_sfnt_off0000ef56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF56 10212 bytes
SHA-256: e6f89940b8aeaeb68558902d3ab0072080c8f1ab180ea686f28812d34ac84eb5