Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaae786d4a631779…

MALICIOUS

PDF

83.5 KB Created: 2021-03-23 10:58:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 2aff97e7ef10a51fa1066b7abc6af24f SHA-1: b1cfff22b1ffbfbff5fe8fa240b5b8815e167ff3 SHA-256: eaae786d4a63177980e6d4db793745ffedeff1a16fc05b74cfbdc4dc92fe3b37
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of external links, many pointing to disposable domains or link farms, indicating a phishing or SEO manipulation scheme. ClamAV and ML classifiers strongly indicate maliciousness. The embedded URLs suggest the document is designed to redirect users to potentially malicious or deceptive content, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

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://dugedepap.ru/strik?utm_term=a+streetcar+named+desire+scene+2+analysis PDF link annotation
    • http://xiselegudiwip.iblogger.org/fononogugexejuwebetafimo.pdfIn PDF document text
    • https://cdn.sqhk.co/zolewiko/Shagdhc/1625615837.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465128/normal_5fcf2bc33f28e.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/Cm9jfWu/13324013923.pdfIn PDF document text
    • http://sizijevoji.iblogger.org/ktm_bike_boy_girl_photo.pdfIn PDF document text
    • https://cdn.sqhk.co/wofunukasu/ggEhaXd/75047798653.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407087/normal_60401a7649079.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/6ie7yhi/ub_learns_zoom.pdfIn PDF document text
    • https://cdn.sqhk.co/taxodisilif/ikjcghf/dragon_warrior_monsters_2_prima_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409609/normal_5fca3058f0221.pdfIn PDF document text
    • https://cdn.sqhk.co/bojowagawire/gDgeibO/bogan_bgm_in_masstamilan.pdfIn PDF document text
    • https://cdn.sqhk.co/kinubowa/dhcMhcz/adobe_flash_player_for_ipad_pro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424330/normal_60481e1f275e7.pdfIn PDF document text
    • https://cdn.sqhk.co/vekepafate/0hcgjUl/parkour_maps_for_minecraft_pe_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379837/normal_601e031a24561.pdfIn PDF document text
    • https://cdn.sqhk.co/lusesito/eojb5j2/hammer_simulator_script_pastebin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://332892e0-6a2b-40ad-946e-e7c92c61c867.filesusr.com/ugd/3e5d97_a121d873fe1b43e1bb4a678f890d5600.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nonabafat/cancer_de_mama_articulos_originales_2018.pdfIn PDF document text
    • http://taxopewik.rf.gd/sowesubudaberuvexalenavu.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/xovowatodowaxefajul.pdfIn PDF document text
    • https://s3.amazonaws.com/setigafat/wisotenibimodiva.pdfIn PDF document text
    • https://336ddc11-c37d-4cd6-9685-7accad2975f7.filesusr.com/ugd/479fa9_dedaa90cd88148ac985cc90d76f1846a.pdf?index=trueIn PDF document text
    • https://e85625e8-91d5-48c2-95a4-67b7b95d5b39.filesusr.com/ugd/b97a97_8c92e36773a9475ab0da230a2347264c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bogeguva/chrome_setup_for_win_10.pdfIn PDF document text
    • https://acfcda0b-1795-4b40-aedc-9a0bc13047ce.filesusr.com/ugd/89c6ad_b8ca9bd0ee204b4296a9ab1a9b533d16.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dudurat/63637658350.pdfIn PDF document text
    • https://676ec9ed-f7fd-49aa-bfd7-c4d7a4ec655a.filesusr.com/ugd/c4f63d_c43534cc76494ed7b9c64ca6331ab01a.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_off000106e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106E7 5308 bytes
SHA-256: f878801191129fc1d458f3853216d1b73bd8c02595be87ad418892d80b65b316
font_01_sfnt_off000118ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118EA 10924 bytes
SHA-256: c8e1fe429956f7da435b3038fa2a9fd9becc3f7a961ef2ca710f14c3a60d26a2

Open this report in the interactive analyzer, or submit your own file for analysis.