Malicious PDF — malware analysis report

Static analysis result for SHA-256 a465ba14c3e78725…

MALICIOUS

PDF

80.3 KB Created: 2021-03-17 22:28:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 868f85231f0407fa745a2b608788fdba SHA-1: 4c55b53015ed9d22a3af69b23febb487ffe51fad SHA-256: a465ba14c3e7872598391e09b9b0e3529aae3b1be97ecfb799c5dec0e70deb18
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The document body, though heavily obfuscated, contains text related to 'Disney concept artists make', suggesting a lure. The embedded URI 'https://nipisod.ru/strik?utm_term=how+much+do+disney+concept+artists+make' likely leads to a malicious site or download. No scripts were extracted, but the PDF structure and embedded URLs are strong indicators of a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/strik?utm_term=how+much+do+disney+concept+artists+make PDF link annotation
    • https://cdn.sqhk.co/wuvinudubuno/83gjjhJ/cartoon_network_telugu_channel_number_in_tata_sky.pdfIn PDF document text
    • https://cdn.sqhk.co/buzulexoxuve/eifjcje/52724249.pdfIn PDF document text
    • https://cdn.sqhk.co/dederubap/hzqjcDJ/sonnys_menu_calories.pdfIn PDF document text
    • http://nafarami.medianewsonline.com/17214515472.pdfIn PDF document text
    • https://cdn.sqhk.co/xogatijixe/9K1ihvg/most_dangerous_truck_roads.pdfIn PDF document text
    • https://cdn.sqhk.co/botonerepap/j7VlfqB/65564391992.pdfIn PDF document text
    • https://cdn.sqhk.co/furugilenu/siaamV3/talking_angela_news.pdfIn PDF document text
    • https://cdn.sqhk.co/wugoxoxowex/Khcgcgh/the_startup_game_wharton.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/205e007a-24c0-421c-ada1-874c06e25065/castle_esc_beep_codes.pdfIn PDF document text
    • http://xotaferuju.myartsonline.com/57618269429.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/bunefuvuwawisigetop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1142db62-5803-416c-8f59-bd7dd324eaf8/prentice_hall_algebra_1_answer_key_chapter_2.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/zosodimagazogorozipomaf.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/describe_what_elements_of_arts_and_principles_of_design_used_in_moriones_festival.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/nalogowidaviba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c78c0bbf-467f-4d58-a7eb-4e0d74e628f7/how_much_does_a_standard_square_bale_of_hay_weigh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab781049-f945-4033-9346-b661446814cd/what_do_pastors_ask_in_premarital_counseling.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/renaissance_periodisation_male_physique_template.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/55264112338.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e47b117-728c-4383-9bff-f37abe877308/the_anchor_yale_bible_commentaries.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/96499617179.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/91638770597.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_off0000f807.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF807 5500 bytes
SHA-256: 78645b729af44238de1ddb50fbaea1dc2bb70eef809538a5ef359d688af5df86
font_01_sfnt_off00010aa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AA3 11512 bytes
SHA-256: 5722e52fe958ccee93d0de1228248e954f58e85519c5eaa549daeaea272683e4

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