Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1ae9119d9026e81…

MALICIOUS

PDF

73.8 KB Created: 2021-03-27 16:18:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e9a02b640f50d75b205947f906b17b4c SHA-1: b2ce0560995d4b400a3f28211e8dfa588f9047b8 SHA-256: c1ae9119d9026e81fd9f5efa82ed5bc7da826f27d936e801fcf137a9c728384e
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing attempt. It contains an embedded URI pointing to 'https://golowaki.ru/wix?keyword=d%2526d+mansion+generator', likely intended to redirect the user to a malicious site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to deliver a malicious payload or phish credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://golowaki.ru/wix?keyword=d%2526d+mansion+generator
    • http://stav-games.ru/942013787031g492.pdf
    • https://cdn.sqhk.co/pixafosabow/fgcymjd/slither._io_snakes_or_worms.pdf
    • https://cdn.sqhk.co/semoxumid/rGL2Zgj/big_bang_article_for_students.pdf
    • https://cdn.sqhk.co/daposofoxig/hgXNtES/24306884181.pdf
    • https://cdn.sqhk.co/verexumifo/jin2hfO/mivekogajikude.pdf
    • http://hellochildren.online/statistics_and_probability_problem_solverbukz5.pdf
    • https://cdn.sqhk.co/pubisifibuj/iighdjd/newest_call_of_duty_for_xbox_360.pdf
    • https://cdn.sqhk.co/telupiza/hiifeie/the_wolf_chinese_drama_recap.pdf
    • https://cdn.sqhk.co/gurudulep/hCjfja4/improper_fractions_worksheet_grade_7.pdf
    • http://arfesopt.com/why_is_structure_important_in_writing_fiction6i56a.pdf
    • http://viputixezererej.66ghz.com/xml_stylesheet_language.pdf
    • http://chunyoo.com/river_road_animal_hospital_columbus_ga8lrrb.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tosasip.epizy.com/tudaxobubo.pdf
    • https://uploads.strikinglycdn.com/files/e8bde1a4-7a93-4a15-b5b8-3f1e426e84c8/night_owl_optics_night_vision_binoculars_ocb400.pdf
    • http://najaxobefirag.epizy.com/81248979952.pdf
    • http://dajejumu.rf.gd/carlow_county_council_planning_application_form.pdf
    • http://salekisaju.epizy.com/50018197312.pdf
    • http://jedafalakax.epizy.com/weralefijalovonit.pdf
    • http://repujatadaw.rf.gd/3355008185.pdf
    • https://uploads.strikinglycdn.com/files/f05c8051-f7cb-4d45-b402-a369d7dad306/how_to_find_square_root_on_ti_36x_pro.pdf
    • http://gawusozuf.epizy.com/47386759915.pdf
    • https://uploads.strikinglycdn.com/files/13730988-083f-41a8-82b1-da40d010d1a3/what_is_act_1_scene_3_about_in_julius_caesar.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7b3.bin
278cac2e78d1b4950b7c4295bc4000fde350c7c8fc6a349bfdf9917f5098d62c
pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B3 4156 bytes
font_01_sfnt_off0000f5e2.bin
03080dd20e8c6cc10b3ab5097d2be5c1c74f417574d2d83c60a58491127cc2eb
pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E2 10612 bytes