Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc6e7ae61a0fdd4c…

MALICIOUS

PDF

86.0 KB Created: 2020-11-25 04:19:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc11c1bada8320886e029363f6ef6957 SHA-1: 104023ae1e1864ac9403b720147f8512fd63260a SHA-256: cc6e7ae61a0fdd4c97479080bbec2c6c8ecec9bb3ab1b04c63b210791ae07915
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, with many pointing to Weebly-hosted PDFs, indicating a link farm or SEO poisoning attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://trafftec.ru/123?utm_term=swtor+shadow+spawn+guide
    • https://guburumo.weebly.com/uploads/1/3/4/3/134322172/88b0eb.pdf
    • https://laratenin.weebly.com/uploads/1/3/2/8/132816160/merolilutomini-jojuxega-temaxo.pdf
    • https://tanaxigurav.weebly.com/uploads/1/3/4/2/134266775/4c2cb17da89382.pdf
    • https://gaxasonazeg.weebly.com/uploads/1/3/4/3/134375181/1829253.pdf
    • https://nedudefo.weebly.com/uploads/1/3/4/3/134389218/a93f0eddca.pdf
    • https://mabedokuk.weebly.com/uploads/1/3/4/5/134582143/danuzizilopil-zutugat-baribo.pdf
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/sefaritonos-nukivafeka-retisebop-regaxumex.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ccc10d31-b326-4c3f-abe0-ca4d010fc90d/rereading_america_9th_edition.pdf
    • https://uploads.strikinglycdn.com/files/fdd7f50f-a32d-4dd1-82a7-e75c626965a2/50965884911.pdf
    • https://s3.amazonaws.com/tibanepoxilibud/sample_estimates_templates.pdf
    • https://s3.amazonaws.com/faluzotixupi/nuwodas.pdf
    • https://s3.amazonaws.com/votuweroxigezog/kinetic_theory_worksheet_answers.pdf
    • https://uploads.strikinglycdn.com/files/91a6bc41-bcda-4014-90c4-0a0fcb7f9310/la_batalla_mas_fantabulistica_pais_de_los_juegos.pdf
    • https://uploads.strikinglycdn.com/files/c7e45224-755d-49cd-9799-33b96cb098c1/64507664747.pdf
    • https://uploads.strikinglycdn.com/files/2f8b93b6-da41-4ba4-b3e3-60c9cb77eeec/the_chain_guardians_of_the_galaxy.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001152c.bin
2a898ee66c3729157aa26b934debcd3cffe0af1f1a0ad61163eba04c087ccee7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1152C 5384 bytes
font_01_sfnt_off00012786.bin
c1883c145ee9854c75b739424f916228b6a07847c8ed8e9b0c2af80b9013b897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12786 10364 bytes

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