Malicious PDF — malware analysis report

Static analysis result for SHA-256 67980d4deae6371a…

MALICIOUS

PDF

111.6 KB Created: 2021-03-14 05:57:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 9f0c87ee3a3dd1bb2f50725bc55af8b3 SHA-1: d0c027399b3b6ac5b1f426f4044b12b7adb8ac61 SHA-256: 67980d4deae6371a16b88de26a9060b1101ed92797e9419ffd43abea2afe4a1e
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable hosting, and is flagged by ML classifiers and ClamAV as malicious phishing content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a high volume of links on potentially untrusted domains, suggesting an attempt to direct users to malicious sites. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with phishing or malware distribution lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9936

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://botokaw.ru/strik?utm_term=will+shatter+meaning+in+tamil PDF link annotation
    • https://cdn.sqhk.co/kedilexele/ZiaLIW9/78008639168.pdfIn PDF document text
    • http://homeolimp.com/besegabavajofoxadanxnqdx.pdfIn PDF document text
    • http://potawuzaj.medianewsonline.com/13957111317.pdfIn PDF document text
    • http://garant-ritual.online/xitotemoserotofidikipazolpnxp1.pdfIn PDF document text
    • http://proita.fun/30156466237zu2g3.pdfIn PDF document text
    • https://cdn.sqhk.co/jiluputumusi/7MD0m9q/cheating_tom_2_uptodown.pdfIn PDF document text
    • http://tetupamino.mywebcommunity.org/5th_grade_math_quiz.pdfIn PDF document text
    • http://servisvds.ru/wawalevjj27.pdfIn PDF document text
    • http://2gusevshop.space/analytical_reasoning_questions_and_answers_for_ntsuo7bq.pdfIn PDF document text
    • https://cdn.sqhk.co/jogekiluse/hejbQgc/planet_fitness_sioux_city_iowa.pdfIn PDF document text
    • http://cheapestshop.xyz/luwoniluvuvejefbr.pdfIn PDF document text
    • https://cdn.sqhk.co/xosifusozat/hgpgjgf/58183569171.pdfIn PDF document text
    • https://cdn.sqhk.co/fekepazerox/dRijgiX/zombie_shooter_game_free_download_softonic.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/50083648997.pdfIn PDF document text
    • http://vugugemo.atwebpages.com/tipokegutatulaleje.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/anthem_blue_cross_medicare_advantage_appeal_form.pdfIn PDF document text
    • http://wujagenak.atwebpages.com/rainer_maria_rilke_book_of_hours_love_poems_to_god.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/46840280120.pdfIn PDF document text
    • http://dapizodipe.myartsonline.com/what_do_maritime_lawyers_do.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/mepux.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 9

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off000184a2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x184A2 18176 bytes
SHA-256: 36bf4bca2dbe62ed7eea770f09dcbd942e9f30cdfd175f8627c1a83adfc01dda
font_00_sfnt_off0000f177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF177 5684 bytes
SHA-256: e0f0922da2f1b5a441c0ab47f148b203928c2bc4519f23812ab58bc0699b7f5d
font_01_sfnt_off00010553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10553 5112 bytes
SHA-256: 6cd44a86fe51c409e14ee71983993fc07422f2288e459f8054bfcdbfb352c9a1
font_02_sfnt_off00011690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11690 6644 bytes
SHA-256: 5bf635d062a685f232e0b40840c4384917bfeb66d79bffaa9e8d6912388dacfc
font_03_sfnt_off00012a4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A4C 2328 bytes
SHA-256: c42118b51b061dffbc196cd4866a2cf76d9f31ae9d0a8f6c06e6ad224a677b24
font_04_sfnt_off00013501.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13501 2108 bytes
SHA-256: 806d12f4c18e044784d20764d58024893796e88f204c306662924b3e907cbcac
font_05_sfnt_off00013ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13ECC 6640 bytes
SHA-256: 2da83060ad210a9a1743b04a22b2cc5ebb14ba7af64fbaa5f25da2d26a1b3d84
font_06_sfnt_off0001506a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1506A 17420 bytes
SHA-256: 7bf924679858663a9844efcd344c3e316039e4bfd9a3c67d1f55f0eb07b4d0e2
font_08_sfnt_off0001a16e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A16E 3276 bytes
SHA-256: c6f56f051084033b0538cdf61e3e457d22b7f2c2ea46d10ec59ebb2b81e63971

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