Malicious PDF — malware analysis report

Static analysis result for SHA-256 47815d6dc767affb…

MALICIOUS

PDF

74.2 KB Created: 2021-03-22 15:33:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a37df79c9951d4ba73c4117fce720d34 SHA-1: 15e23af222a7ac25e7910e8bcc4d1cf1dd747fb1 SHA-256: 47815d6dc767affb2f5514f47b0038861fbe1163623d5727aba65874cf40b569
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://fokemale.ru/award?keyword=amari+soul+reflections+of+a+man+pdf PDF link annotation
    • http://repochka.site/border_patrol_agent_job_qualifications0kaer.pdfIn PDF document text
    • http://thesalle.xyz/for_honor_kensei_beginner_guidepn4od.pdfIn PDF document text
    • http://labiosdewonda.com/which_polaroid_600_camera_to_buy3owvv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503279/normal_5ffc5044346f7.pdfIn PDF document text
    • http://lnstagramcopyrightservices.org/whirlpool_gold_refrigerator_manual_defrostgf5nn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423752/normal_5ffd47ae373b1.pdfIn PDF document text
    • http://rezltml.xyz/volumomivupowaxutulivifuvsluee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420441/normal_60126639bbb66.pdfIn PDF document text
    • http://burrrhey.tech/3824520871pdh1d.pdfIn PDF document text
    • http://p-kavkaza.ru/diablo_3_ps3_save_data_download0uqqt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/female_sea_monster_names.pdfIn PDF document text
    • https://d67926d6-99fe-48a4-938f-95006fdf2de6.filesusr.com/ugd/21d82e_aa7693d9b9d64ee79f3d6fe08459232e.pdf?index=trueIn PDF document text
    • https://8aefc570-8454-48c3-bb63-d4d1067b7ce0.filesusr.com/ugd/5c9621_5c9f91eebbac42ca97d7de070b93bed5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/27644810440.pdfIn PDF document text
    • https://9610c43f-1b2a-4a8a-b660-75aaf3908198.filesusr.com/ugd/286fb8_07ec1a414ce04ae9b11b0ac679a4c0f7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lazolu/97605872174.pdfIn PDF document text
    • https://16564176-4c62-44d7-82e3-1dea6b832d73.filesusr.com/ugd/5e57cf_a91a4ce7e444455799de2c3781956562.pdf?index=trueIn PDF document text
    • https://681956c7-2c57-495f-b996-d04b50c745b0.filesusr.com/ugd/907d98_8154e9fdb32e4a1595a70af2a9a08394.pdf?index=trueIn PDF document text
    • https://2061f665-9309-41a6-981d-137229ee7e60.filesusr.com/ugd/eb2fe6_8df5b5bfd9994e508ec7523abd91fed4.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/obtain_information_bit_by_bit_crossword.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e53c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE53C 5288 bytes
SHA-256: 31434c386e6ec377f09835037f4159161b173e365601ab687dae644b7792fd44
font_01_sfnt_off0000f723.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF723 10716 bytes
SHA-256: d6fe2e08161891f66927022cf91e26c2f15fd85724fc56778363c859d180e7c0

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