Malicious PDF — malware analysis report

Static analysis result for SHA-256 6856cad8215a42ef…

MALICIOUS

PDF

64.1 KB Created: 2020-11-17 22:13:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: b927a30472fb91302252753538029f11 SHA-1: b979e0920f29005853706850254840af926a7abc SHA-256: 6856cad8215a42efdfe062cce9a13564fde28746dff1ba0edaa66097ed427ad1
96 Risk Score

Malware Insights

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

The file is identified as malicious by a ClamAV detection and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting it is used for phishing or to download further malicious content. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs are indicative of a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafftec.ru/strik?utm_term=crystals+and+stones+guide PDF link annotation
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/9897457.pdfIn PDF document text
    • https://pusazaninad.weebly.com/uploads/1/3/4/3/134358808/dozovutolugapi.pdfIn PDF document text
    • https://bawuzuxagoju.weebly.com/uploads/1/3/4/3/134340420/05c08c.pdfIn PDF document text
    • https://razivejinizefid.weebly.com/uploads/1/3/4/6/134610508/kakusajo.pdfIn PDF document text
    • https://vamewufu.weebly.com/uploads/1/3/4/3/134317042/fupomejinederagifufa.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/348fe897-cb0e-46f7-8512-66df5e64b18b/gufevelemisoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e1be921-ac94-42a2-94be-f1bbaadea559/maison_des_oiseaux_la_chatre.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/math_pre-assessment_for_5th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/zivab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/516c8044-cfc4-47f5-a5d2-0207d4c5e4c3/sevefimabaja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/add5994c-c0e5-4993-b13f-e31bf57bb6f6/do_hummingbirds_sleep_upside_down.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f98d750-260c-469b-a2e8-9c66e36554da/jodinotovi.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_off0000c170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC170 5000 bytes
SHA-256: 282f60305ce22188a5300210425c4bbc557d1b569fd47fe60b0564990f44d9d0
font_01_sfnt_off0000d283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD283 9912 bytes
SHA-256: 9efac087c8e216cc9d0be6d4b33471f9c096215fbb3ec915df162d9539a45893