Malicious PDF — malware analysis report

Static analysis result for SHA-256 62c45f127eb26ab7…

MALICIOUS

PDF

191.9 KB Created: 2020-11-25 04:22:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: c0291a2759a76dc0014f94e65eb6ee40 SHA-1: 55aab5ddb3223cffc008f44249a3df01aefc3224 SHA-256: 62c45f127eb26ab7892d17266ce2d13bb341abc5f9f5cd619ef5fbf17a10f5aa
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'traffking.ru'. ML classification also strongly indicates maliciousness. While no scripts were extracted, the presence of a malicious URL suggests an attempt to lure the user to a compromised site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffking.ru/123?utm_term=mega+blocks+castles In PDF document text
    • https://gekeforoka.weebly.com/uploads/1/3/1/4/131438206/69928cd717bbfc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387419/normal_5f9f324e50256.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450148/normal_5f9ebc0500a67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426424/normal_5fb772b094da7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jitimesolagun/rpg_random_tables_sci_fi.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/zazap.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/bridge_over_troubled_water_guitar_tab.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/13719595640.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/17251793076.pdfIn PDF document text
    • https://s3.amazonaws.com/fejififimaketo/mutalusiguraru.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/behavior_modification_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/7477147985.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/wobuximuxegutuxufan.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002ae3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE3D 4712 bytes
SHA-256: eef5ae6c20630c20579247d8c65e24e0dbb4465c681de4db9ab15fc29c1b2da1
font_01_sfnt_off0002be5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE5C 11412 bytes
SHA-256: 20c05b45bb998b4bb2392b5361dafe080c4eedab2de493be32997c1ca2158f6e
font_02_sfnt_off0002e42e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E42E 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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