Malicious PDF — malware analysis report

Static analysis result for SHA-256 416d0e6fc53f5f26…

MALICIOUS

PDF

86.2 KB Created: 2021-04-23 06:29:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: d7a375585da7d0f3002f99a9446cb9f7 SHA-1: a3925e28c5429b0cb0895008bd12f33a360ba9e0 SHA-256: 416d0e6fc53f5f26a0eed47b565e5b9ca92eb89d677115c7fe912a07c6dfd188
156 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, characteristic of a link farm designed to manipulate search engine rankings or direct users to malicious sites. The embedded URLs and the ClamAV detection strongly suggest a phishing or malware distribution intent. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://vilenefex.ru/strik?utm_term=how+long+should+a+vape+pen+battery+last PDF link annotation
    • https://wunenogapo.weebly.com/uploads/1/3/4/5/134509221/2eab72dc3bffe.pdfIn PDF document text
    • https://keregejuvuja.weebly.com/uploads/1/3/4/3/134345288/dodebigewodama_vamovovirase_tedadaserutabun_mibelipi.pdfIn PDF document text
    • https://xexofomes.weebly.com/uploads/1/3/4/4/134489610/487961096b2.pdfIn PDF document text
    • https://zoparimunafixi.weebly.com/uploads/1/3/4/3/134336740/103338026391d.pdfIn PDF document text
    • https://tikomonanuso.weebly.com/uploads/1/3/4/2/134266270/c184ea2c03b.pdfIn PDF document text
    • https://rizebilawi.weebly.com/uploads/1/3/0/8/130814716/1981070.pdfIn PDF document text
    • https://nawajutexi.weebly.com/uploads/1/3/4/1/134108687/a646195c5bca7c3.pdfIn PDF document text
    • https://powagaminabori.weebly.com/uploads/1/3/0/9/130969211/vatozitalumorusavuv.pdfIn PDF document text
    • https://palujaburufo.weebly.com/uploads/1/3/2/7/132740236/7328931.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzevawu/DihOicE/haunted_tunnel_colorado_springs.pdfIn PDF document text
    • https://cdn.sqhk.co/tabewinudeka/gck2oLk/smoothie_maker_blender_set.pdfIn PDF document text
    • https://cdn.sqhk.co/nanagajog/cwicYha/las_vegas_style_slot_machines_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/mawebugo/QjjjdFd/44070045056.pdfIn PDF document text
    • https://cdn.sqhk.co/jekuzedu/ibiiKWI/xobuvidilimofebel.pdfIn PDF document text
    • https://baluwakenina.weebly.com/uploads/1/3/1/4/131437578/besasetujir_vavix.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/mejobu/fukaruk.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/video_song_site.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/happy_wheels_mod_apk_android_1.pdfIn PDF document text
    • http://zixoxajoredipub.epizy.com/python_snake_for_sale_uk.pdfIn PDF document text
    • http://tokafibalo.epizy.com/aptana_studio_3_for_windows.pdfIn PDF document text
    • https://s3.amazonaws.com/sorapobuk/89624758805.pdfIn PDF document text
    • http://bawatusarab.epizy.com/asge_guidelines_pregnancy.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/the_crown_season_1_episode_9_numerical_dyslexia.pdfIn PDF document text
    • http://wodebupikeziv.epizy.com/can_i_buy_a_new_remote_for_my_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/49205789417.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/what_is_the_synonym_for_retained_earnings.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/2d_honeywell_xenon_1900ghd.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_off00011279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11279 5576 bytes
SHA-256: ce116cedcf52934ea5f0ca0accd7513540a6b08c105348111ce2864c54f88643
font_01_sfnt_off0001257c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1257C 11092 bytes
SHA-256: 3ec9b3173c3c347413fc3d7af7c61078fd871efdb776f6ec98800da50fadf4da

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