Malicious PDF — malware analysis report

Static analysis result for SHA-256 d76ffd76e98f768e…

MALICIOUS

PDF

83.2 KB Created: 2021-04-27 06:46:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2f59c698d6d673f54dc7d816cd6fffbe SHA-1: 221ab8ab4502ff55387dbffbc0cc190d3bc1e1e4 SHA-256: d76ffd76e98f768e828782d1adf9922d54f9d6a3ab837b7716636cd252e13b68
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a phishing page disguised as information about stock prediction. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/strik?utm_term=best+machine+learning+algorithms+for+stock+prediction
    • http://pupigojoniru.mypressonline.com/beading_techniques.pdf
    • http://chambrehq.xyz/jugorovinuvodejejalikaxj2ohv.pdf
    • https://ronupajowosoza.weebly.com/uploads/1/3/4/8/134871490/9849561.pdf
    • http://nesobaka3.xyz/xogetigotiwafapiponj5wm0.pdf
    • https://dugegedop.weebly.com/uploads/1/3/4/3/134338267/bijoxegaketu.pdf
    • http://cashthe.ru/kutixilasanojorenajutnsp29.pdf
    • http://rumigiwataj.getenjoyment.net/nobujeres.pdf
    • http://ibkreactiva2020.com/90131865245wi78r.pdf
    • http://prodson.space/thirteen_reasons_why_season_4_episode_3_soundtrack3aete.pdf
    • http://sadovik.me/tipos_de_funciones_del_lenguaje_metalinguisticaelpz8.pdf
    • http://7evenrp.ru/myat_t_for_businessq3zru.pdf
    • https://wiwokuvivatazu.weebly.com/uploads/1/3/4/6/134629214/tofesotaxopovupe.pdf
    • http://vk-settings-change.online/alkyl_halides_iit_jee_questionsxqwjl.pdf
    • http://tricitysikhs.com/211183109838a81e.pdf
    • http://duwinijuj.mypressonline.com/78908982467.pdf
    • https://kelurefuvaw.weebly.com/uploads/1/3/0/9/130969237/3835625.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/1ae87b6b-95bd-4106-80f6-9c36814f65d2/will_any_wifi_extender_work_with_fios.pdf
    • https://s3.amazonaws.com/dazifozixawus/90688081951.pdf
    • https://uploads.strikinglycdn.com/files/dbd81a10-6cdb-4cd3-bfdc-1d7f3f3df686/99362169474.pdf
    • https://s3.amazonaws.com/lodazojamuva/52429570980.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f02e.bin
10878babd576b5d4c5ae011052f1cdedb536d9fa189f4c649e2fccf8c250ca22
pdf-font-stream PDF embedded font (sfnt) at offset 0xF02E 5684 bytes
font_01_sfnt_off0001035a.bin
78c23f0863573613aa7a1f0d9188aa6fdec4db34613afb659f18e27f0e4cd20f
pdf-font-stream PDF embedded font (sfnt) at offset 0x1035A 11496 bytes
font_02_sfnt_off00012971.bin
532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e
pdf-font-stream PDF embedded font (sfnt) at offset 0x12971 16204 bytes