Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe1d15ef760d257…

MALICIOUS

PDF

79.5 KB Created: 2021-03-11 14:55:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 252fde4de3a05c2f8e5ead91738702ce SHA-1: 29375334e8d8a10abbb8ebe0fb965e04c9c65752 SHA-256: abe1d15ef760d257f20d8b38f8286efd593d1b86dbd229f254f43c957d64ccb0
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 0.9998

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/aws?utm_term=rhinoceros+5+tutorial+italiano PDF link annotation
    • https://cdn.sqhk.co/levowexesu/j672uYp/vuremebudozafekivusibej.pdfIn PDF document text
    • http://euromarket.pro/nabexejojl7nz.pdfIn PDF document text
    • https://cdn.sqhk.co/bixatavafut/UV31krm/tron_light_bike_scene.pdfIn PDF document text
    • http://netewe9.xyz/tifofesorasujupawo37tq6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379241/normal_60328a60e9d55.pdfIn PDF document text
    • http://prostotit.site/41479175360d6amj.pdfIn PDF document text
    • http://qqkaxes.xyz/music_in_theory_and_practice_volume_1_workbook8ssru.pdfIn PDF document text
    • http://the-glow.ru/handleiding_itunesbieth.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413585/normal_6047f41260a60.pdfIn PDF document text
    • http://pidagenavuziw.mywebcommunity.org/xuwigabofogonusakavora.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502819/normal_5ff6ac0401bfc.pdfIn PDF document text
    • http://nout-sale.site/titigitatokuzcc5rk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gurabagoderes.atwebpages.com/big_fish_grill_rehoboth_de_menu.pdfIn PDF document text
    • https://601bead5-a720-4f65-98db-62fe2a42cb91.filesusr.com/ugd/0e52b4_ce090883ddf944f1bc785ed5e298694a.pdf?index=trueIn PDF document text
    • https://77701ba7-c5ad-4750-ab17-5b03548f7fc0.filesusr.com/ugd/9a242c_27430c4b3a4346aeabca7eaaddb3292b.pdf?index=trueIn PDF document text
    • https://033a7475-7ccb-45c1-8f1e-38fd320d48d0.filesusr.com/ugd/03a576_3e9981998cf24f1fab43d8e0a19fbba6.pdf?index=trueIn PDF document text
    • https://0d555108-1732-4721-8d72-76d747b2053a.filesusr.com/ugd/1b0481_798cee964c1f4d3b86d4e2f08465b0f6.pdf?index=trueIn PDF document text
    • https://081e7fb2-604d-424b-9b75-a58d54a71a44.filesusr.com/ugd/abd6ea_7f6a66dd87d941a6b891a634234a6f57.pdf?index=trueIn PDF document text
    • http://xobibaga.myartsonline.com/nimisenukaju.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4C 6440 bytes
SHA-256: 629123bfde0685c5f69bbdd27ec008bde0224d5c30af1dabb990f6ee33ea778e
font_01_sfnt_off0000fa40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA40 5016 bytes
SHA-256: fbd3826f8b10f9fe0938a7bfe21e34cb6e69af967efb97fafdc50c3ad34e23e7
font_02_sfnt_off00010b51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B51 11940 bytes
SHA-256: b2781ef9b79d8238388f72ff39f91635e0688cc939821c07d256dd7bb3dcb4aa

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