Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c05e2701167400c…

MALICIOUS

PDF

96.3 KB Created: 2021-03-07 17:43:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 2cc8319950361d918186bff584843c43 SHA-1: 1398fa4733ac063d545a7a1af3701dae4ca57c8d SHA-256: 8c05e2701167400cd5526d009fc99c9d11cb537de6200481872336645dc13cd7
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

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 0.9992

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 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.
  • 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://lozipotod.ru/wix?keyword=character+progression+pathfinder+2e PDF link annotation
    • https://wegodirudime.weebly.com/uploads/1/3/2/7/132740829/jevugata.pdfIn PDF document text
    • https://rugepokowefi.weebly.com/uploads/1/3/5/2/135294276/fonakapiga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498392/normal_60415cf56ea2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374951/normal_60371e20eadc1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403948/normal_5ff5ee22aeca3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450147/normal_5fe97eabef6fd.pdfIn PDF document text
    • https://dufanidozit.weebly.com/uploads/1/3/4/7/134764520/gajisuwopetef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448733/normal_5fc8c8d004128.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457281/normal_6041c48563e7e.pdfIn PDF document text
    • https://domilejoxu.weebly.com/uploads/1/3/4/5/134529458/naxanizizi_kalekojexi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448995/normal_5fd5fbb56919e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4527859/normal_601b338c2e37e.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/buxoparadazegu/kadatutolivogebu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f53871c1-6f4c-4614-bb34-d3ab1734ef97/62003542832.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/c_i_d_full_form_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/hillsong_worship_songs_free_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/call_of_duty_mobile_garena_apk_obb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb40aa54-aed0-49e2-b7f9-22c7a7a3ec45/lelomujusuxi.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/21951921601.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8083d8d0-96d1-4e97-a4f1-17c4228394f4/ford_6.4_egr_delete_kit_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/jumble_answers_october_16_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9af2cc7e-37bf-47ea-8852-a8589a3da25a/75011076787.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd726bd8-a89d-4a04-aef9-20c727e39931/cuisinart_-_coffee_center_12-cup_coffee_maker_with_water_filtration_-_black_stainless.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/dirodoma.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013c8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C8A 5420 bytes
SHA-256: 65629fe285093d20c155942cf7ec91f24680d2a886adc4eb66f943103a9f23a7
font_01_sfnt_off00014eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EEF 10732 bytes
SHA-256: e1052281024151472ac082b109bc6beb15585a036b12fadad96be99ee624a271

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