Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce4c0c502fd29021…

MALICIOUS

PDF

71.2 KB Created: 2020-11-18 05:53:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 467ab8001e3eafad0cea6bf5732be262 SHA-1: 261c65d4a2536b9ab90ce2c869782400756e7c6e SHA-256: ce4c0c502fd290215fd6ce2415bc7480107575aecfde184d90d6766ae347cd4b
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, flagged as a 'link farm', suggesting a phishing or SEO poisoning attempt. The presence of a URL like 'traffking.ru' further supports malicious intent. While no scripts were directly extracted, the PDF structure and heuristic firings indicate it's designed to redirect users to potentially malicious content, likely as a first stage for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffking.ru/123?utm_term=photo+license+center+lancaster+pa PDF link annotation
    • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/sejofawimojugo_wexubu_konopefut_xisanosib.pdfIn PDF document text
    • https://kadefetu.weebly.com/uploads/1/3/4/4/134471860/vazokadet.pdfIn PDF document text
    • https://litabunor.weebly.com/uploads/1/3/4/5/134522775/1777621.pdfIn PDF document text
    • https://misutinulil.weebly.com/uploads/1/3/1/4/131407711/8604940.pdfIn PDF document text
    • https://xigokerurubupa.weebly.com/uploads/1/3/4/3/134312623/8324400.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/vexeliku/porter_cable_pocket_hole_jig_menards.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/32441929642.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/97218017891.pdfIn PDF document text
    • https://s3.amazonaws.com/sibenuvokiwuz/wapujisazetelududidibug.pdfIn PDF document text
    • https://s3.amazonaws.com/nepawigexa/android_xml_namespace_is_not_bound.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/forge_minecraft_1.12.2_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/3_grade_eog_math_practice_test.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/20187297131.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/kindergarten_reading_comprehension_test.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC72 5020 bytes
SHA-256: 26d8e01b346d95838025b0740354159965a3d9cfe9707e1f509b6228608df064
font_01_sfnt_off0000ed7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7F 10240 bytes
SHA-256: 96de30dfd933a9c7e02cf3711902e1153d1478bded393f517130600fa69a53fe

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