Malicious PDF — malware analysis report

Static analysis result for SHA-256 346e11e0e5ae5f25…

MALICIOUS

PDF

78.9 KB Created: 2021-03-15 14:52:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: db5959a60ae126b0c8c9dec63c2a43d8 SHA-1: aaec08c92ed9ec24c13e22241098c3a85187e431 SHA-256: 346e11e0e5ae5f25a469f125be66d0fb508db9931a30d4c74d841c775cd8d9df
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO manipulation or phishing campaigns. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially harmful content, aligning with a phishing or malicious redirection attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://golowaki.ru/wix?keyword=love+is+the+law PDF link annotation
    • https://cdn.sqhk.co/levuzivanu/aMggBjh/xirovaloburigowotejet.pdfIn PDF document text
    • https://wonakusoxenim.weebly.com/uploads/1/3/5/3/135340368/66e115.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/wafebu.pdfIn PDF document text
    • https://pedigujelod.weebly.com/uploads/1/3/4/0/134096449/fipamadonozoxipeniv.pdfIn PDF document text
    • https://kusuxifitumaka.weebly.com/uploads/1/3/4/5/134593182/6177253.pdfIn PDF document text
    • https://xapugugividus.weebly.com/uploads/1/3/5/2/135298581/lazufibafid-poluv-kuxop.pdfIn PDF document text
    • https://matixibufi.weebly.com/uploads/1/3/0/8/130873880/282efddd6.pdfIn PDF document text
    • http://pornbustyvids.com/how_to_use_semiotic_analysisuqbuu.pdfIn PDF document text
    • https://zepifuvuxetota.weebly.com/uploads/1/3/6/0/136095774/lunawiwulerozufijam.pdfIn PDF document text
    • http://xujavimok.22web.org/zuzuzuwilulig.pdfIn PDF document text
    • https://cdn.sqhk.co/losomilodip/Uxvhezp/41952933775.pdfIn PDF document text
    • http://salet.store/varuthapadatha_valibar_sangam_video_songs_hd_1080p_free_downloadhkarz.pdfIn PDF document text
    • https://cdn.sqhk.co/gixenako/g8rlfwl/vsco_mod_apk_v76.pdfIn PDF document text
    • https://cdn.sqhk.co/sebazisop/Z4O4Sw9/warijusitenukigu.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/99fa0f86-3fcb-4379-b18e-005f87a80727/kohler_jet_tub_parts.pdfIn PDF document text
    • http://baxogezupeg.rf.gd/alexa_app_for_macbook.pdfIn PDF document text
    • http://faxunarin.epizy.com/how_does_reading_support_writing.pdfIn PDF document text
    • http://puwagof.rf.gd/97984195028.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/777dcd18-4fe8-4f21-867e-b76c09643cbd/how_to_run_java_program_in_windows_10_using_command_prompt.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_off0000f7d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D0 4772 bytes
SHA-256: b9717b515d04049b00d7ae4c504fb6507e075a1ecf94f18db2dd4cad3f4d7a28
font_01_sfnt_off00010821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10821 11428 bytes
SHA-256: 2ade180e9ec2ed46e761e1aa573772f595542b89870d2f951ed07c91ff572e75

Open this report in the interactive analyzer, or submit your own file for analysis.