Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b5040829ed5760f…

MALICIOUS

PDF

76.0 KB Created: 2021-03-18 02:21:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 1604a55314b87608df67dae07487a6b4 SHA-1: 90699690d05a74cf0e0c65498a63b7307eb0bbfc SHA-256: 7b5040829ed5760f7fe2011c994f3680b51c086e8b4521f55da9487741a32109
96 Risk Score

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 0.9993

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://maypoin.ru/strik?utm_term=primerica+classes+schedule PDF link annotation
    • http://pedaxofanor.mywebcommunity.org/nortel_networks_m3904_headset.pdfIn PDF document text
    • https://cdn.sqhk.co/zafowavo/ibDhief/15333699186.pdfIn PDF document text
    • http://goligofalu.medianewsonline.com/what_is_via_character_strengths.pdfIn PDF document text
    • http://dosaxixapaxa.medianewsonline.com/ryobi_12_drill_press_review.pdfIn PDF document text
    • https://cdn.sqhk.co/serodozire/qqasjib/best_racers_at_richmond.pdfIn PDF document text
    • http://jenuxijaf.mygamesonline.org/15089898839.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422168/normal_5fe6f8158a5d8.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/mikomibotuwatiwozagaru.pdfIn PDF document text
    • https://cdn.sqhk.co/fonowatusopu/hyWRjdM/xeloboviwolipejuvu.pdfIn PDF document text
    • http://xanusojuruxu.sportsontheweb.net/26950410048.pdfIn PDF document text
    • http://roxedizusugu.mywebcommunity.org/convert_jpg_to_small_file_size.pdfIn PDF document text
    • http://jorowijedo.mywebcommunity.org/what_does_arrested_development_mean_in_biology.pdfIn PDF document text
    • https://cdn.sqhk.co/rorefevobo/i6icjNc/pop_pop_bubble_wrap_app.pdfIn PDF document text
    • http://zinefikitozozeg.sportsontheweb.net/28378063463.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414358/normal_600450262d813.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/tezude/self_guided_tours_to_costa_rica.pdfIn PDF document text
    • https://s3.amazonaws.com/kujapomib/gelurewusipuwufib.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/geometric_transformations_rotation.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/apache_camel_source.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/away_in_a_manger_music_sheet_piano.pdfIn PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/free_mobile_phone_antivirus_software.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/hey_afrojack_song.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/logitech_k400_plus_keyboard_software.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_off0000eb1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1E 5180 bytes
SHA-256: 4a02b02b3593832f393b013777f9b7737a56eb35f8c932a99a065c337e3fd8d4
font_01_sfnt_off0000fc86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC86 11160 bytes
SHA-256: a190fdd9948f61c8114d8699b4f603f0b7f76e8619587aca20f12d9e066f6145