Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e686ef4ddbadc42…

MALICIOUS

PDF

76.8 KB Created: 2021-02-19 13:28:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: d40029dd3e96e0a3754b68ff088bb508 SHA-1: 01bdd1d3eccb8ff97e66217f4e6e43b4d6ae6710 SHA-256: 0e686ef4ddbadc4200d75024a6ab383bc53f378145a6bb5ed8af25a944acaf97
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one heuristic specifically identifying a "PDF_SEO_LINK_FARM" containing 30 external PDF links. The document body, though heavily obfuscated, suggests a lure related to a "storyboard artist portfolio pdf". The presence of multiple external URLs and the ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • 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://jottigo.ru/123?utm_term=storyboard+artist+portfolio+pdf PDF link annotation
    • https://bigimenuxorotel.weebly.com/uploads/1/3/4/6/134655509/9661611.pdfIn PDF document text
    • https://poxatekegevu.weebly.com/uploads/1/3/4/7/134753674/xipiwufe_kapenanojaba.pdfIn PDF document text
    • http://wugigazugijub.22web.org/74645121229.pdfIn PDF document text
    • https://zagefejov.weebly.com/uploads/1/3/2/7/132710748/7354680.pdfIn PDF document text
    • https://buranujepexu.weebly.com/uploads/1/3/4/3/134339299/vupexuniv.pdfIn PDF document text
    • http://lifeshop.pro/alphabet_matching_worksheet_preschool87l13.pdfIn PDF document text
    • http://nuzabokazovuwa.iblogger.org/dafofebibuzevi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://birijigasexow.epizy.com/romanesque_architecture_history.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/aspirateur_robot_neato_botvac_connected_d5_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/renting_contract_template_free.pdfIn PDF document text
    • http://sujobej.epizy.com/pizifuruwukatinakami.pdfIn PDF document text
    • http://narajogevimoxe.epizy.com/bootstrap_login_templates_examples.pdfIn PDF document text
    • http://fefomopopokelo.epizy.com/tivozirelarisetufidawuda.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/analytical_techniques_book.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/wifuturadogedu.pdfIn PDF document text
    • http://lovikusikew.epizy.com/rawobutejebu.pdfIn PDF document text
    • http://jenigaseze.epizy.com/arkabutla_lake_fishing_report_2019.pdfIn PDF document text
    • http://suvemavukefejig.epizy.com/42369584992.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2AE 4944 bytes
SHA-256: 0e39018c204dabeca4a3b14d3800452a4551950f93c6af4c6b9b632a7466cfa0
font_01_sfnt_off0000f37f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF37F 10732 bytes
SHA-256: 6db000150baaa72c992a582cabbd37490fd88491ba0fa88fcae76755d26035fa
font_02_sfnt_off0001183b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1183B 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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