Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcfb2434f566f80a…

MALICIOUS

PDF

52.4 KB Created: 2020-08-26 09:00:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5834da0b4621def86f47b21642d3c33c SHA-1: 9e602e8da7482d798dae82e2155366a9a55213de SHA-256: dcfb2434f566f80a6c79b1529d0f18dcffbcc16f08cd5291c034ec7f07903351
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Ddl and dml commands in sql ppt' and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous outbound links, further supporting the malicious intent of redirecting users to external sites.

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.com/pify?keyword=ddl+and+dml+commands+in+sql+ppt
    • http://sodoti.spidirnetwork.org.uk/uploads/1/3/1/4/131438759/xamozetebifafe-tavoliwiz-tevigi-sisevisem.pdf
    • http://files.alexandrashatalov.com/uploads/1/3/0/7/130739232/piximulisora.pdf
    • http://files.thomaslabandz.com/uploads/1/3/0/8/130814596/553c8a03e.pdf
    • http://noruk.thechristensenlab.info/uploads/1/3/0/7/130776167/jifet-firuworiroz.pdf
    • http://files.thequadstudio.com/uploads/1/3/1/8/131872238/kufinanax.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/kafekuritowemobimixuto.pdf
    • https://cdn.shopify.com/s/files/1/0432/7469/8902/files/case_study_research_design_and_method.pdf
    • https://cdn.shopify.com/s/files/1/0437/2057/3080/files/48965899476.pdf
    • https://cdn.shopify.com/s/files/1/0431/7455/9893/files/gabawujofedobulupa.pdf
    • https://cdn.shopify.com/s/files/1/0436/1574/8253/files/90101558072.pdf
    • https://cdn.shopify.com/s/files/1/0429/9853/0201/files/bot_2_scoring_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/2426/6917/files/wirivufetekojaxibisoruge.pdf
    • https://cdn.shopify.com/s/files/1/0432/2754/5763/files/86644648744.pdf
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/fidic_contract_agreement_template.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_off00008748.bin
eb45f136e2b95e3e97273c1102452228f447b237383d6d918596eba60d01f620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8748 5248 bytes
font_01_sfnt_off0000990d.bin
f10bec3623baaddfe6c57ba1a25d37508e8350fec99f259ea1d0d32b3783ed28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x990D 13904 bytes

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