Malicious PDF — malware analysis report

Static analysis result for SHA-256 012dda501fa84ac2…

MALICIOUS

PDF

74.3 KB Created: 2021-02-22 16:27:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: d1ea5ae4721677706bd18489b67a9dea SHA-1: e7a444b23fc32f60cc2bde6b5e0554ef71b24929 SHA-256: 012dda501fa84ac20cac4b099ad624c18b03c588a14ded007c4d47191d224119
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'seumenha.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to trick users into visiting malicious sites or downloading further payloads.

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://seumenha.ru/123?utm_term=best+astrology+books+pdf+in+tamil PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4454430/normal_5fefd9cf0510a.pdfIn PDF document text
    • http://kegumexiwekot.22web.org/fbi_agent_badge_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488604/normal_6033388529399.pdfIn PDF document text
    • http://naturfresh.fun/179067468876g3tr.pdfIn PDF document text
    • https://cdn.sqhk.co/taxeseta/gjkF73b/26490469810.pdfIn PDF document text
    • https://cdn.sqhk.co/vozevadijut/hamgier/hockey_goal_horn_soundboard.pdfIn PDF document text
    • http://mmmuuuue.space/17462246222uee7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499673/normal_602d0d2984af4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366652/normal_6000e466c69c0.pdfIn PDF document text
    • https://cdn.sqhk.co/gorokipo/jjdvYzm/18862993702.pdfIn PDF document text
    • http://55571.ru/6882096575p54t8.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/kuxuxemu/losubatojikizikenanunobib.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/bolbitis_difformis_mini.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/what_was_the_spreadsheet_program_before_excel.pdfIn PDF document text
    • http://kusegipe.epizy.com/17495200755.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/23761712527.pdfIn PDF document text
    • http://falogivaxaf.epizy.com/1607515397.pdfIn PDF document text
    • http://tamugaza.rf.gd/w-_4_allowances_form_2019.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_off0000e2c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2C1 5716 bytes
SHA-256: 869b28a78de50472abc43ce00fa4d74fb6e492bdfc1d5f4128eb2e5832b7bc0f
font_01_sfnt_off0000f633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF633 11144 bytes
SHA-256: 49b2d88690b13e25980aa0fa8e9661daf085fb1ccc0631902ceb671503884455

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