Malicious PDF — malware analysis report

Static analysis result for SHA-256 89e7cc4f564f0ef5…

MALICIOUS

PDF

74.1 KB Created: 2021-02-22 01:26:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: c4b468efaccdf2f6dc4b386b084e1c18 SHA-1: 97835d447a04342faf90f3176ab2ad623e2fb028 SHA-256: 89e7cc4f564f0ef5c8dcaf8a80cdbb141bd759eb9eae2239563fb2201e47ba3e
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 0.9999

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://jacksth.ru/strik?utm_term=iphone+5c+price+in+nigeria PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4448536/normal_5fc8a4bf5df57.pdfIn PDF document text
    • https://cdn.sqhk.co/fovulifavu/jc4hahE/pearl_forum_drum_set_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/dunafafaxen/OyIjhhj/43946103552.pdfIn PDF document text
    • https://cdn.sqhk.co/tosuwukiwate/WPiijdU/64162514537.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405419/normal_601299bbc7b46.pdfIn PDF document text
    • https://cdn.sqhk.co/rezeribevi/vVhgAji/what_is_dinkoism.pdfIn PDF document text
    • http://okclub.org/bella_s_lullaby_piano_sheet_music_original3487d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388177/normal_5fd13547dfd17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372737/normal_60199645f30f6.pdfIn PDF document text
    • https://cdn.sqhk.co/rifasidajika/icKgdcI/dolesekoranuzulivexufi.pdfIn PDF document text
    • http://amaryllis.space/volibeputugulorakupanosjuf6u.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477651/normal_6028065bd0c04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486981/normal_602d76b5abdf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371786/normal_60150de31b43d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tereraje.rf.gd/avadhuta_gita_italiano.pdfIn PDF document text
    • http://mevekanuz.epizy.com/david_deida_choose_a_woman_who_chooses_you.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_off0000dc54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC54 5044 bytes
SHA-256: ae2240aafb07be93f5a3946c4cc255b3c592cf544a213dbdc8a1cff95280e60c
font_01_sfnt_off0000ed7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7F 14944 bytes
SHA-256: 77b53e209086b70a389060dee16d38f945f21d1a3b451e0a6bc422773ef9dfee