Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf99c65e8f6b37c2…

MALICIOUS

PDF

46.8 KB Created: 2020-08-09 16:57:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fbe8055b4cf6f67f6d6bee444366eba SHA-1: 23a1148f63454d9933f2289e8d8013a3cb6dae27 SHA-256: cf99c65e8f6b37c2c92b2af222d0dfe0a257b844acbf349e0184343fe8e03e68
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a link farm designed to obscure a malicious redirector, masquerading as a free download for a job solution book. The primary malicious URL identified is https://ttraff.cc/pify?keyword=dream+it+job+solution+book+pdf+free+download, which is linked to known malicious infrastructure. The document body and embedded links further support this lure tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://ttraff.cc/pify?keyword=dream+it+job+solution+book+pdf+free+download
    • http://ligazifa.chrystalhardt.com/uploads/1/3/2/3/132303382/fibadakelufosinej.pdf
    • http://files.jennelennon.com/uploads/1/3/0/9/130969300/kikam.pdf
    • http://files.practicallypurplesunflower.com/uploads/1/3/0/7/130775867/julimig.pdf
    • http://tizezeliw.marianjohnsonhealyvoicestudio.com/uploads/1/3/1/1/131164243/soxivuzipa.pdf
    • http://files.karriejbutler.com/uploads/1/3/1/3/131384081/7560803.pdf
    • https://cdn.shopify.com/s/files/1/0440/2734/7109/files/mokuzapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/6153/4111/files/ditajik.pdf
    • https://cdn.shopify.com/s/files/1/0434/3355/8168/files/nomepufurewozivirexelizi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4161/1159/files/bufika.pdf
    • https://cdn.shopify.com/s/files/1/0432/3124/8541/files/94352678090.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/99923340171.pdf
    • https://cdn.shopify.com/s/files/1/0435/9615/2995/files/pojuzidibuzareboniba.pdf
    • https://cdn.shopify.com/s/files/1/0433/7015/2088/files/damuf.pdf
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/ketazevelijujo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/17737239.pdf
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/19211692369.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007038.bin
bb5de1d7d3311317d05f29b36ea5c5cc5631deb55c26197da9ba9a839fb40884		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7038 5560 bytes
font_01_sfnt_off0000831b.bin
a028d96a1d62ca869db0d34954b8f553a34463c437054e78ca3ca48e79580468		 pdf-font-stream PDF embedded font (sfnt) at offset 0x831B 17552 bytes

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