Malicious PDF — malware analysis report

Static analysis result for SHA-256 845b61c0bf45894c…

MALICIOUS

PDF

84.5 KB Created: 2021-03-24 11:27:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 21a14dd397fc8b6d94214f7acde58cb3 SHA-1: 1e41f4582c4e03694281c8bc7cba9c3e8ccd193c SHA-256: 845b61c0bf45894c97c95e092e619923f8ad456a0a38647514f941fe55a5dd68
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that, when clicked, leads to a site offering a download related to 'snapchat apk ios 9.3.5'. This is a common lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or trojan distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/wix?keyword=snapchat+apk+ios+9.3.5 PDF link annotation
    • https://cdn.sqhk.co/riroxale/i2biegg/double_dragon_trilogy_pc_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447915/normal_6015c4a64bfda.pdfIn PDF document text
    • https://cdn.sqhk.co/lojadisexudo/bjbig7R/maruti_swift_rear_shocker_price.pdfIn PDF document text
    • https://cdn.sqhk.co/xinefegepe/djejaX0/the_triple_crown_2020.pdfIn PDF document text
    • http://verifybadgehelp.com/what_is_formal_and_informal_meaningjdjb6.pdfIn PDF document text
    • https://cdn.sqhk.co/milagaleja/lSgeH6L/happy_merge_family_farm_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373016/normal_601fef1135fff.pdfIn PDF document text
    • https://cdn.sqhk.co/bizujutenifo/ha1gcrA/dragon_isles_world_of_warcraft.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369307/normal_60078ebbb165d.pdfIn PDF document text
    • http://pmaider.com/canal_rcn_en_vivo_chaty_tvi130f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403952/normal_600ba97156603.pdfIn PDF document text
    • http://thedefenseforge.com/kijejewifajafefugana971zi.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/fumiposamisur/biodynamic_farming_books.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/cessna_172m_weight_and_balance_form.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/navbar_responsive_bootstrap_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/sarojabazatugasu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2019862f-c27c-4a1d-bb76-704073d64ab5/xadozej.pdfIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/bed_sheets_made_in_pakistan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/513b19f2-e226-4a00-aa1c-1a987464f146/10422401749.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/security_interview_questions_and_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/181114cd-5571-4e10-9e30-f9ffa35463af/how_do_i_setup_my_acurite_wireless_thermometer.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/14843239194.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/84367924587.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzamada/gujobezirofawokukugijuwi.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/jokaguf.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_off00010aa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AA9 5536 bytes
SHA-256: dff72c2db9e6739b56612c611ecddacce75aff2ea473a5d3e213031a4f42ab44
font_01_sfnt_off00011d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D7E 11468 bytes
SHA-256: 992b127cc112846c23aeaa60de5114f0e82d708419800f2a35f1f8f43e498847

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