Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d880e333588f6df…

MALICIOUS

PDF

69.7 KB Created: 2021-03-06 05:28:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 9295f46d7810d3c4bf1cdff27e2b2526 SHA-1: 47e5f1ec1706ef4c6abea05473a7414f4b452e1a SHA-256: 9d880e333588f6df36e3f2f1f6032c8114e18ba033789b1a2c429b20a6bfd5dc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://maypoin.ru/wix?keyword=meiosis+worksheet+answer+key+biology PDF link annotation
    • https://linonojito.weebly.com/uploads/1/3/1/3/131380720/8483445.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/6hgIh1U/duck_hunt_game_buy.pdfIn PDF document text
    • https://munuliwakubife.weebly.com/uploads/1/3/1/6/131637312/5429141.pdfIn PDF document text
    • https://cdn.sqhk.co/liminekaj/hedhdic/electronic_music_festivals_2019_usa.pdfIn PDF document text
    • https://dizawiwutap.weebly.com/uploads/1/3/4/6/134629961/459273.pdfIn PDF document text
    • https://cdn.sqhk.co/waxolulum/ddmnahi/easy_care_oximeter_repair.pdfIn PDF document text
    • https://cdn.sqhk.co/zidulibu/dijjzgd/vuwiboganil.pdfIn PDF document text
    • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/juzudepidu-nedefitofetu.pdfIn PDF document text
    • http://lg-supportteam.com/91325494134ug1qp.pdfIn PDF document text
    • https://vesabigixovo.weebly.com/uploads/1/3/1/8/131857304/91f338e159fb75.pdfIn PDF document text
    • https://cdn.sqhk.co/tisufupujeli/iNGjccl/fitness_girl_dance_play_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kikolibub/ghcUXii/dubafemus.pdfIn PDF document text
    • http://indir-kazan.com/wefawomn685x.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/ihihhhj/97561445657.pdfIn PDF document text
    • https://cdn.sqhk.co/burajugi/hijkwSn/brain_out_level_32_a_cliche_question.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://4454cc88-256b-48ad-9013-c0414c72072d.filesusr.com/ugd/67e251_737b78d1b5ad4791b4f46bcd6ea3cd60.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/cateye_strada_cadence_wired_manual.pdfIn PDF document text
    • https://ce2645ba-e89a-43d5-afff-5c0150757291.filesusr.com/ugd/c63dba_a01e166a197b46339b302a796eeb04a7.pdf?index=trueIn PDF document text
    • https://d8d078ea-10ec-4787-8e21-ef6e32b87a24.filesusr.com/ugd/8f6098_1446da3b9d424e8b9596caebe708c8ef.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zakunafu/mn_dmv_driving_test_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/febajimuvagogexa.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/losing_weight_for_no_reason_yahoo_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/5045874638.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d45c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD45C 5352 bytes
SHA-256: 5de7c83b4acdc037b8f5f022f611fe62411520c0beab57b8b6a7c5244ae2a89e
font_01_sfnt_off0000e6ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AC 9948 bytes
SHA-256: ee2ca554ebe067a997642bafd92ed345b388c4fe6b18c5813b1f4d3bfafe2be0

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