Malicious PDF — malware analysis report

Static analysis result for SHA-256 630d006b809b7672…

MALICIOUS

PDF

74.6 KB Created: 2020-12-28 22:14:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: bc251baa8f669987e26a40270172a959 SHA-1: d91b11942c1a63d5140b610a31a08c22767bff1a SHA-256: 630d006b809b76721755ab5a8551bb2faa3fd38c6654811a105be499f94e2da7
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to known malicious redirectors or link farms designed to distribute further malware. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=eminem+real+slim+shady+lyrics+az In PDF document text
    • https://cdn.sqhk.co/rinilafexowi/gdfge8l/3581742015.pdfIn PDF document text
    • https://cdn.sqhk.co/papusabefo/jqge5GE/68419829591.pdfIn PDF document text
    • https://burabusuzu.weebly.com/uploads/1/3/4/6/134649623/3201406.pdfIn PDF document text
    • https://cdn.sqhk.co/moranunemuk/agVjfUA/ribopuvusotepa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380226/normal_5f8c212f6b940.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/suxugipipolazog/girl_games_plaza_en_franais.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/filumodazodowelu.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/windows_10_1607_language_pack_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/59291206018.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/obat_bisul.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/xobufesufow.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/gikejuluvi.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_off0000e60e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE60E 5288 bytes
SHA-256: 430a73804ce217a4d07e5744312fb1bd183cc9363948d22fbe6df6fa09795063
font_01_sfnt_off0000f7e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E8 11136 bytes
SHA-256: a4e5ab03817923c8ba2e3372c6f4c4c9e143f433365acba229969a87ef80cf8e

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