Malicious PDF — malware analysis report

Static analysis result for SHA-256 e357f1d249e99628…

MALICIOUS

PDF

73.5 KB Created: 2020-11-09 21:48:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 0f2f590cb534fa2f4993188f056434b8 SHA-1: ea7cd9cea1acc2a1beaf8d843abbbc660d59573b SHA-256: e357f1d249e99628667a5ca5ef1f50411f248708cecf60b7d82bd67cd09df3a2
154 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a known malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a high-priority indicator.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?keyword=the+burning+maze+pdf+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4392659/normal_5f9f431ee661d.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/a9ad42f4-e346-48e9-ad8f-44d3a70f6b23/gokuxixixipabelupovinoga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1bfbc60-95ca-414b-b10a-9b4ca12db899/wutajop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcb1ff99-0fce-4ba3-80d3-55c683e25791/23722359520.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/99606880924.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/083e594f-6258-4cf4-b049-1884c8387297/13651077971.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87a897d4-c71d-420f-854e-e91f4a293808/aurora_3d_animation_maker_templates_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7474972a-1e76-4e02-a618-39b161a328c5/2403172013.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e252a05f-d9fa-4181-914f-7be54e41b404/xugetigilivorije.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c7bd62a-b0a1-4213-b6cd-644ecf1649e4/resident_evil_7_mr_everywhere.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1c353e4-0812-4e6d-8c54-ed3e2528d331/lufatunovuragonuset.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fef3d2d-7d1a-4430-9dca-572aa63ae568/jevofonizulo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e74b3753-a960-4b50-8b33-7586dfe279d8/zezitosaduj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3d077d3-b782-4b57-bb99-9f97a9566da4/bachata_dominicana_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/56671118391.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c0a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0A2 5508 bytes
SHA-256: 574f703da02caa4e1c2c0d06b34a9c634051d8bda3cb8032c732466bb6b88f1a
font_01_sfnt_off0000d34b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD34B 10992 bytes
SHA-256: bd2a6f4f1835df459908aa20e0145f698d551a525f678db4ad09fe483fbf3d80
font_02_sfnt_off0000f922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF922 19804 bytes
SHA-256: 74c28c94981c6daa2693310832b496d9bc416dc90c99a459842e090ffc81ac95

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