Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0a2f608363b4ca1…

MALICIOUS

PDF

129.7 KB Created: 2020-11-10 23:15:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 6ce851fdad2c81c467b4328eb8a6acb2 SHA-1: d8f73bdfc847e2161d10a462565243af8982cdc3 SHA-256: b0a2f608363b4ca15a678f15e4fb23072c1e20703e9024f6e4ddb6b2255ec193
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://traffine.ru/strik?keyword=what+is+ifa+divination PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379859/normal_5fa244046097c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374535/normal_5f8c848bba59d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387921/normal_5f98e8fa843b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366662/normal_5f8736643f635.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/zuxadol/vijuwozupo.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/ben_10_upgrade_coloring_pages.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b01b31b-26e6-49a0-b28a-2e4b23c22749/the_bad_seed_children_s_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02938cbd-d88e-4d61-874e-80848ab95c77/wiwojavur.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/sewititolusibile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3523ba8e-a7f3-485b-97b4-6065fde46943/kolb_learning_style_inventory_test.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56a2c1f5-072d-4eea-89dd-bb34423a263a/98317496616.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0001c57d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1C57D 30208 bytes
SHA-256: ec9cec327150fee5273732fab7bf8a0845e6019fcbb8d57ebdd01ab650e027a7
font_00_sfnt_off00018b0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18B0F 4940 bytes
SHA-256: 48b3bf05cf15b106f93c95fc42332feed15e46f39596419dffdb1be20de7c613
font_01_sfnt_off00019bf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19BF2 13016 bytes
SHA-256: bc00d94c429901b0f8c18a654c20fc16dc4c39055a2e4d2f8158858a032ce444