Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f8f02ff5a4af0f8…

MALICIOUS

PDF

247.9 KB Created: 2021-03-23 06:36:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 27a1ee733312275ea5ef627d31c377b5 SHA-1: 9b68097a8a78a94de46d173c9c12fe50206bb119 SHA-256: 6f8f02ff5a4af0f849e39194401689a94e87bd6d9738fab84b825b51f0d12f73
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://druttle.ru/wix?keyword=difference+between+ethnolinguistic+groups+in+the+philippines', which is a strong indicator of a phishing or malware distribution attempt. The document body, though heavily obfuscated, suggests a topic related to 'ethnolinguistic groups in the philippines', likely a lure to disguise the malicious nature of the file. No scripts were extracted, but the presence of external URIs and the overall detection suggest the PDF is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9750

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/wix?keyword=difference+between+ethnolinguistic+groups+in+the+philippines PDF link annotation
    • http://soul-felt.com/how_to_reset_a_bravos_maytag_washer76nod.pdfIn PDF document text
    • http://xapepinozex.22web.org/dotutalove.pdfIn PDF document text
    • http://pakekoramiduwin.getenjoyment.net/kuteduzibusazu.pdfIn PDF document text
    • http://kepuvofege.22web.org/43475150647.pdfIn PDF document text
    • http://tapasin.sportsontheweb.net/pabelubazuduset.pdfIn PDF document text
    • http://fabujisaw.mygamesonline.org/didudagixogowumo.pdfIn PDF document text
    • http://mxbur.fun/43023589350l2f8g.pdfIn PDF document text
    • http://fomamiforepu.22web.org/7649472456.pdfIn PDF document text
    • http://fimewot.xyz/behavioral_neuroscience_textbooknhohs.pdfIn PDF document text
    • http://mmmmmme.space/answer_to_complaint_sample_californiabzynr.pdfIn PDF document text
    • http://copyrights-notices-helps.com/2727177643042hou.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/fedure/systolic_hypertension_in_elderly_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/instagram_photos_extension_firefox.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/41726600387.pdfIn PDF document text
    • http://tuxefunuzire.atwebpages.com/do_lab_grown_diamonds_have_any_value.pdfIn PDF document text
    • http://nibijebe.epizy.com/serway_vuille_college_physics_9th_edition_solutions_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71f4a9e2-322f-4c90-b3c8-7b139b03166a/what_other_jobs_can_a_project_manager_do.pdfIn PDF document text
    • http://zekubegem.epizy.com/admit_card_icai_nov_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df7f22b6-2f59-47c5-8a74-bc2c5b20fd5f/relational_database_management_system_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/752ea834-b4cf-4b6c-a217-b6b0fe0b866b/ruger_lcp_holster_iwb.pdfIn PDF document text
    • http://lidikulogape.rf.gd/monotype_bodoni_std_roman_free.pdfIn PDF document text
    • http://zevusup.atwebpages.com/67999210062.pdfIn PDF document text
    • http://likijanima.epizy.com/50548811644.pdfIn PDF document text
    • http://wedosop.rf.gd/african_swine_fever_virus_real_time_pcr.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d9fe587-887d-4ec9-9c84-31e33dfdbff3/how_to_lose_weight_with_p90x.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00034788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34788 16240 bytes
SHA-256: 9bfd28d6e6462604fc6f5fc18f9df81a6ce07b5d36fafe22bdb6d3a1a00bb594
font_01_sfnt_off00037c98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37C98 5300 bytes
SHA-256: 12e50939c1c504fcd9413577608bdc8d09ebdb4254dc6af6d9627958552facd8
font_02_sfnt_off00038eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38EB6 15196 bytes
SHA-256: a8ac47366183ddc96195da0f69211e2c6a74393a73d1407b33502ef07c8ad0d3
font_03_sfnt_off0003bb4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BB4B 16060 bytes
SHA-256: 4ef9506ee11a349461550e6b437e3786686b598308a87786035880d16624999d

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