Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac657218abf4200f…

MALICIOUS

PDF

76.9 KB Created: 2021-03-11 06:59:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1f53e9f4c2793afeb6607328826f65e4 SHA-1: 20ee4608316e204676a3ffeb3bf35a47c6b5d0c1 SHA-256: ac657218abf4200fe632beb2abf4d2fa8db3b97012a693db3d027ea795eebfa7
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://jumiwimov.ru/award?keyword=makkar+ielts+writing+task+2+pdf PDF link annotation
    • http://zumbayuliya.online/bihar_board_compartmental_admit_cardlxp1i.pdfIn PDF document text
    • http://prizinsta24.space/digestive_biscuits_nutritional_information3wtax.pdfIn PDF document text
    • http://lnstagramverifiedsbadgeforms.com/maverick_et-733_wireless_bbq_meat_thermometerl1n63.pdfIn PDF document text
    • http://getveran.site/36012003406j78pa.pdfIn PDF document text
    • http://all-gopro.com/free_printable_calendar_september_2020nlvkv.pdfIn PDF document text
    • http://uplrezina.site/lejelotesiz4bnb.pdfIn PDF document text
    • https://nasuzezigoma.weebly.com/uploads/1/3/4/5/134587751/pabotex.pdfIn PDF document text
    • http://betmoy54.com/manual_para_aprender_a_tocar_guitarra_para_principiantesnds89.pdfIn PDF document text
    • http://save50it.pro/87260812214i0tmv.pdfIn PDF document text
    • https://vawemuziz.weebly.com/uploads/1/3/5/3/135351027/305891.pdfIn PDF document text
    • https://tekejixebosij.weebly.com/uploads/1/3/1/4/131452745/vovelaxopejajekat.pdfIn PDF document text
    • http://jumpfs.space/plants_vs_zombies_2_garden_warfare_pchog9u.pdfIn PDF document text
    • http://uablog.website/mustang_owners_club_of_austink5x39.pdfIn PDF document text
    • http://onlineeshop24.xyz/bapojubinegesia.pdfIn PDF document text
    • http://lofitner.buzz/tolebuhh0u6.pdfIn PDF document text
    • http://igonlinesupport.com/henkaku_enso_3._65_guiderfu0a.pdfIn PDF document text
    • http://zinobinipote.22web.org/free_blade_and_soul_mmorpg.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/dudurat/wadalodiwawifib.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/char-_broil_performance_4_burner_lp_grill.pdfIn PDF document text
    • http://nojekakanafigi.rf.gd/lifinobogage.pdfIn PDF document text
    • https://s3.amazonaws.com/mivokozibu/fimoruzemanuzi.pdfIn PDF document text
    • https://s3.amazonaws.com/wizakokowe/address_format_letter_us.pdfIn PDF document text
    • http://lanakupi.epizy.com/clinical_case_reports_fee.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/at_a_dixieland_jazz_funeral_sheet_music.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_off0000f051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF051 5500 bytes
SHA-256: ed676cfa569a43902f6c0436a81a6ed253ab77342e33ba0da143c84ef98c07c7
font_01_sfnt_off0001033d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1033D 10332 bytes
SHA-256: b011b8cbfeaccc42f200f637fc45ce7a2eb6849e91beff296d92508882e61a90

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