Malicious PDF — malware analysis report

Static analysis result for SHA-256 3797e048dab88adb…

MALICIOUS

PDF

76.1 KB Created: 2021-03-10 01:32:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: aed376515316a715a92eae14e653d7cb SHA-1: 3524ecced3655660ae741b7b128a14892ae7d432 SHA-256: 3797e048dab88adb4c00ee4e89ac34b349180c78c8d14f088102fe37af29a7a5
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. An embedded URI points to a suspicious domain, likely used for phishing or to host further malicious content. The document body, though heavily obfuscated, contains keywords related to car sales, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/strik?utm_term=ford+mustang+gt+for+sale+near+me+craigslist PDF link annotation
    • https://cdn.sqhk.co/rasirise/hehfih8/simulacra_pipe_dreams_free_download_pc.pdfIn PDF document text
    • http://bilkaita.space/kftc_voter_guidegj9wx.pdfIn PDF document text
    • http://sumapewub.getenjoyment.net/98196689689.pdfIn PDF document text
    • https://miruvoxizoxu.weebly.com/uploads/1/3/5/3/135397032/tuvasolobif.pdfIn PDF document text
    • https://cdn.sqhk.co/najuvotuwoz/mgg7MgL/47763325306.pdfIn PDF document text
    • https://gixoxiri.weebly.com/uploads/1/3/4/7/134707295/konejibaxax.pdfIn PDF document text
    • http://vosojivaru.mypressonline.com/fuxelitebu.pdfIn PDF document text
    • http://istra-backwater.ru/sherlock_holmes_2_full_movie_in_hindi_hd_free_downloadnmshu.pdfIn PDF document text
    • https://cdn.sqhk.co/duxadikoti/k0ijibd/11428059605.pdfIn PDF document text
    • http://zolepop.mypressonline.com/citizen_skyhawk_wr100_manual.pdfIn PDF document text
    • http://viwesisikumebi.getenjoyment.net/reality_transurfing_romana.pdfIn PDF document text
    • http://katipef.medianewsonline.com/kixogamemev.pdfIn PDF document text
    • https://cdn.sqhk.co/pivugituxi/dnEshh0/23074575794.pdfIn PDF document text
    • https://cdn.sqhk.co/jomububorava/gchdogd/5_seconds_of_summer_music_list.pdfIn PDF document text
    • http://rusadezebep.mygamesonline.org/92673054684.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/zoxewudunigus/samsung_sd_card_format.pdfIn PDF document text
    • http://bufijonewufo.onlinewebshop.net/31437769039.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/sefodidagumesuganorijegej.pdfIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/earth_day_worksheets_for_5th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/39068255158.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/yu_gi_oh_forbidden_memories_character_guide.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_off0000eab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB7 5296 bytes
SHA-256: a41acc37bda30c83e0ea43aec3d356e18e2ab15e329e853dbee59a81d2604f13
font_01_sfnt_off0000fca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA7 11272 bytes
SHA-256: c1ae9267c3c6b5baf53c631faa22a6b680afcef6f853026aac01943af3a3b29f

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