Malicious PDF — malware analysis report

Static analysis result for SHA-256 7008d37bd0be308e…

MALICIOUS

PDF

192.1 KB Created: 2021-01-16 23:50:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 71938088d7b0587060227c0304b363a4 SHA-1: b752e56dc5596c8f2dc982dc39e25a1329ff3fb7 SHA-256: 7008d37bd0be308e8001de1b9cf0527776fdbee22d21b398e173e107f8dddd8e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The presence of an external URI suggests an attempt to lure the user to a malicious site, likely for phishing purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=sunless+sea+tooth+of+the+snow+child PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446634/normal_5fb33a24ca18d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365653/normal_5f881611e511e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418197/normal_5fb5479b5d1a8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408004/normal_5fc5e98ed812f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501214/normal_5fcf7dc4d19fd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386091/normal_5fed0e3bdbd25.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/bWaijh3/woxetuxelosediveben.pdfIn PDF document text
    • https://site-1216881.mozfiles.com/files/1216881/2582461282.pdfIn PDF document text
    • https://site-1177680.mozfiles.com/files/1177680/71606832339.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365589/normal_5fadfa8db7bf0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/liguwubore/what_is_narrative_nonfiction_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/42467685228.pdfIn PDF document text
    • https://s3.amazonaws.com/mikibetiv/gajusobusituravisolup.pdfIn PDF document text
    • https://s3.amazonaws.com/fajonubinomeder/97037808211.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/jerininukovol.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_off0002ba09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA09 5208 bytes
SHA-256: 2cf1358fd98fe6b7e05cd9b045977c05c197486af1ded6ab568825932cc3a0c6
font_01_sfnt_off0002cbd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBD4 11408 bytes
SHA-256: a3a292bb6ea156ca21780725112f4b3b0c4f0cf6d3eaa1afb982bee21f1c860a