Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bb40234ea447cb3…

MALICIOUS

PDF

71.3 KB Created: 2021-05-16 08:02:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3d4c21554ed2210a9391348169cbf31a SHA-1: 2eb5cd6a4bc580ab55c2738b3d0a87c5441d02ad SHA-256: 8bb40234ea447cb3909ffb21b514002981dad0ffd6023a56c112d72a4a23106a
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/strik?utm_term=kitchenaid+mixer+replacement+parts+edmonton PDF link annotation
    • http://creditscoreusa.info/civ_6_religion_beliefs_tier_list_gathering_stormwkp7t.pdfIn PDF document text
    • http://english-10.site/vukekodagowigemopirar5s543.pdfIn PDF document text
    • https://cdn.sqhk.co/bijozugetav/ijf0Gii/zojik.pdfIn PDF document text
    • http://goodxday.xyz/31290538750rt6rb.pdfIn PDF document text
    • http://1cats.space/nebexogaponowovolebm91hh.pdfIn PDF document text
    • http://organic100.fun/login_page_template_bootstrap_48b5y0.pdfIn PDF document text
    • https://cdn.sqhk.co/wuwoxegolewa/zz6ice6/romancing_saga_2_walkthrough.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://juvegebufu.epizy.com/wofasezojemekaxu.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/vosibe.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/32979911586.pdfIn PDF document text
    • http://ganusigesu.rf.gd/44524992610.pdfIn PDF document text
    • https://6e3eaeb2-b9dd-4462-8b56-96c59beebd9a.filesusr.com/ugd/dcc11b_1a43156af8924e54a391b4d49dd53865.pdf?index=trueIn PDF document text
    • https://2a4b29e6-a790-453e-81e7-e8b9caf2c27b.filesusr.com/ugd/bf0735_3dff414de82b41c3b2b5ca059ec476df.pdf?index=trueIn PDF document text
    • https://de315c38-daa2-4293-b666-e554ba9b7d65.filesusr.com/ugd/564d2e_f6b11ac0c67f47949426fed7f8f398c3.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/18a90253-bb85-45c5-8f74-699a3777d75b/which_lion_the_witch_and_the_wardrobe_character_are_you.pdfIn PDF document text
    • https://s3.amazonaws.com/tufitijinexu/46106201174.pdfIn PDF document text
    • https://932aa67c-856a-4fda-9fc8-fe3f50d4acc2.filesusr.com/ugd/a25eee_2b94da336a264538b47cb0fdd2509796.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/strength_training_workout_for_runners.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/good_research_topics_for_6th_graders.pdfIn PDF document text
    • https://8e0cabef-d481-4215-b437-8a5fc4e4723c.filesusr.com/ugd/f41140_28ba62f90e284816b55fc96efa0fe4f5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/81b44943-19d8-48fd-b5b7-3ba7bcdd19a7/suntrust_bank_email_address.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_off0000d875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD875 5352 bytes
SHA-256: 521cfba14e852317d85dd58d111011aead86a97fb81bd0cb61b40d1cb1142bdf
font_01_sfnt_off0000ea80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA80 10980 bytes
SHA-256: 851c8cdb4ef9abac10b5246c04051f15965643ecde6f21f1d855680cacccf607

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