Malicious PDF — malware analysis report

Static analysis result for SHA-256 fabae9ae7c854619…

MALICIOUS

PDF

58.3 KB Created: 2020-12-14 02:22:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 4d4e7dc4a5bf5a639f87a25d2600dfe6 SHA-1: 190bade36144e461e6f7a03bc914f386d85d6d29 SHA-256: fabae9ae7c85461968a1fe5fcf7db9eb03f00c0d5502ef13b0ea938e9abf3ef8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous external links, including one to 'trafftec.ru', suggesting an attempt to redirect users to potentially harmful content. The presence of PDF_SEO_LINK_FARM heuristic indicates a deliberate effort to create a large number of outbound links, a common tactic for distributing malware or conducting phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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.
  • 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://trafftec.ru/123?utm_term=malibu+landscape+lighting PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381751/normal_5f9728da7726c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490121/normal_5fbe914316d40.pdfIn PDF document text
    • https://niwejeru.weebly.com/uploads/1/3/4/3/134308800/nixitegilamije.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405185/normal_5fb581229a358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489583/normal_5fc1d64223791.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490364/normal_5fcb05ffd2edc.pdfIn PDF document text
    • https://lirefabagobaxi.weebly.com/uploads/1/3/4/0/134012393/8c5e49.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/4a97efe6-101a-43bb-a6c5-0cb776bd9024/game_of_thrones_season_2_subtitles_english_subscene.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc101f96609fd0ee791e489/t/5fc3880f145a8629dc1e1199/1606649871649/86863757165.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/144d4aec-0aa2-4fe9-9c24-8d09a55f0768/jelufebozar.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc36f132e537a05ef193780/t/5fcae12b6e74d26c6ff3b998/1607131436068/homeschooling_in_pasco_county_florida.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_off0000a735.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA735 5384 bytes
SHA-256: bf2dba34a9c3aa4909c7c231ff83e6e263484e45a9ae4091ce86ba2aa85a4c7a
font_01_sfnt_off0000b987.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB987 10396 bytes
SHA-256: 5189184cb6f68cf9fccdd7dfde6dfa755fce765976c09d479fef13e76994e088

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