Malicious PDF — malware analysis report

Static analysis result for SHA-256 265732183732c482…

MALICIOUS

PDF

82.6 KB Created: 2021-05-21 14:36:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: af9b0e26f1380aa4898dec5baa0a2203 SHA-1: 94a1255d77cb7ceace0c513d67fe3f31a455ea43 SHA-256: 265732183732c482d9e83ce21c8be9f3ff65dfa9ac2027be5735717807f1dac1
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://botokaw.ru/strik?utm_term=how+do+you+make+an+appleton+farms+spiral+ham PDF link annotation
    • https://wulodegekejiwa.weebly.com/uploads/1/3/4/2/134266030/zusuvajudo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466135/normal_6029f71ebd546.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391893/normal_5fdb2fb087150.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410989/normal_5fec3d865ff62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458150/normal_604755a9258da.pdfIn PDF document text
    • https://lupilonugugi.weebly.com/uploads/1/3/1/6/131637558/zuvak.pdfIn PDF document text
    • https://pimusaxasoj.weebly.com/uploads/1/3/1/8/131856122/5455602.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491436/normal_5fd2e9434bfa1.pdfIn PDF document text
    • https://zoxanomo.weebly.com/uploads/1/3/1/1/131163640/tazed.pdfIn PDF document text
    • https://fajizaxaro.weebly.com/uploads/1/3/1/3/131381717/9777702.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459794/normal_601b3f867f510.pdfIn PDF document text
    • https://soregekewo.weebly.com/uploads/1/3/4/2/134266411/9739825.pdfIn PDF document text
    • https://rumorima.weebly.com/uploads/1/3/4/3/134307849/todefisobedol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503791/normal_604118408d10a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/4d3c8f09-a000-41a7-96f8-7c7fc6bb604b/focusrite_scarlett_2i2_3rd_gen_installation.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/23094467188.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/ms_access_2007_online_templates.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7fc77ce-9428-4390-92cc-918b0cc9f03d/personajes_principales_y_secundarios_de_la_obra_el_amor_en_tiempos_de_colera.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/the_crown_season_4_episode_1_boat_explosion.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 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_off0000f563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF563 5380 bytes
SHA-256: 6038c3adb8af79331b7235e3be3e1b29299dde236c7073feeaf59ac8879870b3
font_01_sfnt_off00010793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10793 11680 bytes
SHA-256: 6dc199d6785ef202584f312b99d95803f99a5863bff73e015e0e73d44ce7e5b6
font_02_sfnt_off00012ed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ED1 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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