Malicious PDF — malware analysis report

Static analysis result for SHA-256 fceb4491e9421c1e…

MALICIOUS

PDF

65.2 KB Created: 2020-12-17 15:51:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7767fbcbe25421b4b18f301f1633e91b SHA-1: 3472e19359225784fe4191e6507ae6af0f7ac0ae SHA-256: fceb4491e9421c1e3fafb20003239eb22b4c843c5a1df5ada0114b2ec3c301b5
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'traffine.ru', which is likely a phishing or malicious site. While no scripts were extracted, the presence of an external URI in a malicious PDF strongly suggests a phishing attempt to redirect the user.

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://traffine.ru/123?utm_term=pasabahce+glassware+nz PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4453560/normal_5fd6825fb4ed5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470979/normal_5fcf12ffce29e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426556/normal_5fd225adcd182.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393515/normal_5fd894310752d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387420/normal_5fd1cb3a8de30.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc10304b8467722f1d4df02/t/5fc1f198145a8629dcf61f36/1606545818916/68986928662.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5ad3c92c50b1a1e980d73/t/5fcfbd8e8606bc77f0e15c48/1607449999718/msp_2_free_vip.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc06d09e5c7695ca9994347/t/5fc3ca226457125654af8190/1606666787586/xbox_360_power_supply_specs.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc18b4cdf132613bbc250a7/t/5fc665e93485235c86a22da4/1606837738879/melofekomezupanetisoz.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/jegefo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf11648de9584222147437/t/5fd067f83364176a125bde9d/1607493624684/galaxy_fandango_carson_city_phone_number.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7b71bf140fc3aa58b6189/t/5fcddf8c3ff101154013cdc2/1607327628898/crusades_saladin_and_richard_the_lionheart.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_off0000c0d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0D5 5344 bytes
SHA-256: ab28beee98697bf88ea00dd69d38d51eb01efb8adacf4a151113ee7f53f2d083
font_01_sfnt_off0000d318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD318 11272 bytes
SHA-256: 912c97823de998a3379777bcf312b0fb077716fbefc93208c79e3adee629b396

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