Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda18a5b9c50987e…

MALICIOUS

PDF

66.0 KB Created: 2021-01-09 05:03:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: eca13929cc5a8def4c37ba471f844c45 SHA-1: 73e54877d89dfc7a01f9c4c828020d53e21fda50 SHA-256: fda18a5b9c50987ed8ef2f637ed6f5ffae0af1d9f5addc9b4edc79d8bfd2e098
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically 'https://trafficel.ru/123?utm_term=mobo+triton+pro+ultimate', suggests a phishing or redirection attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are commonly used in phishing campaigns to direct users to malicious sites.

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://trafficel.ru/123?utm_term=mobo+triton+pro+ultimate PDF link annotation
    • https://cdn.sqhk.co/bagudivibi/lFhfhir/80s_dance_music_hits.pdfIn PDF document text
    • https://cdn.sqhk.co/zigimovovu/dighijg/wafabogazuzuzonubupegoboj.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/exhbvhe/bejeweled_3_classic_online_game_pogo.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/hiicahi/frog_good_luck.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417033/normal_5fedcbc22bbbc.pdfIn PDF document text
    • https://cdn.sqhk.co/vixukose/3XxP9HU/41059830946.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366987/normal_5ff4026e69996.pdfIn PDF document text
    • https://cdn.sqhk.co/waximanodif/hidhalP/81069837719.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366009/normal_5f8ef1aa65163.pdfIn PDF document text
    • https://cdn.sqhk.co/suxupijisajo/hxcQiiI/34344299554.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413109/normal_5ff4c75ab0a1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407100/normal_5f94ed233042c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467975/normal_5fa72b81480e3.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/434131aa-0d70-4933-a8b7-22f538b1d217/57901754990.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_off0000c47c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC47C 4932 bytes
SHA-256: 75a7ceef541ffde6ab0680f35f68540cbf4b9ef5959a74be96c0ce457bf4895c
font_01_sfnt_off0000d52b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52B 10864 bytes
SHA-256: 88e64584b3dd2a0bc4d58b1aa8ebc8eaf47d8687eb12aee1b56b9552e8dd5a68