Malicious PDF — malware analysis report

Static analysis result for SHA-256 08d0c37eff06fb76…

MALICIOUS

PDF

179.4 KB Created: 2021-03-17 17:43:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 33cf72ffdc31e126e14565d4d5c5a142 SHA-1: ce05d5f8b2985598d4ef759387924c77f15d7ac9 SHA-256: 08d0c37eff06fb762d76a4d33d4aaf49c2776f2475361d10d7fa90f99e7c601a
96 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, one of which is presented as a search result for 'lanakila elementary school school supplies'. The ML classifier and ClamAV detection strongly indicate maliciousness. The presence of embedded URLs suggests an attempt to redirect the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://leonvi.ru/wix?keyword=lanakila+elementary+school+school+supplies PDF link annotation
    • http://phillipen.online/lajoputozfybl.pdfIn PDF document text
    • http://lnstagramsupportingcenter.com/61380349072xzrlo.pdfIn PDF document text
    • https://jekotufuwin.weebly.com/uploads/1/3/1/4/131406020/sipujupevaf.pdfIn PDF document text
    • https://vemegerefawobe.weebly.com/uploads/1/3/2/6/132682093/a8d33747031ecdf.pdfIn PDF document text
    • http://tlgfree.xyz/83389150314y1c3v.pdfIn PDF document text
    • https://cdn.sqhk.co/kiribikiv/NGyEhjf/36935681579.pdfIn PDF document text
    • https://vowipolijej.weebly.com/uploads/1/3/4/7/134713390/fc07908acc3d8.pdfIn PDF document text
    • https://cdn.sqhk.co/mixaluwekitu/hcoBMhb/90118665478.pdfIn PDF document text
    • https://bigonokefexix.weebly.com/uploads/1/3/4/5/134518339/juropuxok.pdfIn PDF document text
    • https://cdn.sqhk.co/bataseset/jfFm0jf/twisted_tea_calories_bottle.pdfIn PDF document text
    • https://cdn.sqhk.co/fojufifef/gdjbqxN/flood_insurance_underwriting_guidelines.pdfIn PDF document text
    • https://puzepoxa.weebly.com/uploads/1/3/4/3/134318678/90cc0e3a1e56.pdfIn PDF document text
    • http://reduslim-sito.site/android_os_list_namesbsbuo.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/08092fd4-af95-498e-9ca0-444a112c128c/wafijekisafaj.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/befotoxiwuzafebajizubew.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/lisonakoxeg.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/dulejo.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/nawozebotufagudokom.pdfIn PDF document text
    • https://s3.amazonaws.com/zatazewoz/corporate_event_invitation_templates_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89ed46e2-9196-4cbc-97b6-ce9517a1b5e1/17710022518.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/70627692414.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/modogabegew.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/bowefipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ef84226-ef94-4a3a-b687-47772e8c1d77/liwiv.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00027a66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27A66 5160 bytes
SHA-256: 65843a32c2d10194d6f4ccdc73c073410e27c1d32ea54fa4a2fe2a9c3b36e157
font_01_sfnt_off00028bc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28BC8 11116 bytes
SHA-256: f5750794b903a40ff2eceaf54f43aa0319148462ec82163a9aa7a09cec1fd6e5
font_02_sfnt_off0002b109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B109 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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