Malicious PDF — malware analysis report

Static analysis result for SHA-256 df602b93ddaea1b6…

MALICIOUS

PDF

30.1 KB Created: 2020-03-11 03:46:11 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3d3533deb8ec1ff91fd4b51115ace49b SHA-1: ed0925ba324aee13b3105faece6755b58594b448 SHA-256: df602b93ddaea1b6ca0c013459a9ccf7a37a28d77bb8e6d3ed709a7ded72f3e2
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to similarly structured URLs on different domains. This behavior is indicative of a link farm used to distribute malicious content or conduct phishing attacks. The document body, though partially corrupted, contains a reference to 'Ohaus cs series scale manual' and the URL http://sta-66-99-58-203.ladse.org/uploads/1/3/0/8/130813663/130813663.html#ohaus+cs+series+scale+manual, suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

Heuristics 3

  • 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
  • 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 http://sta-66-99-58-203.ladse.org/uploads/1/3/0/8/130813663/130813663.html#ohaus+cs+series+scale+manual
    • http://foundationrepairinhoustontexas.com/uploads/1/3/0/8/130814645/viletezenelegos.pdf
    • http://taylornoelrealestate.com/uploads/1/3/0/6/130604009/6289435.pdf
    • http://shelbybaldock.com/uploads/1/3/0/7/130740419/596721ad84ca.pdf
    • http://elysianresources.us/uploads/1/3/0/3/130313577/xenuv.pdf
    • http://foodwasteservices.com/uploads/1/3/0/6/130640051/ravuluxan_fidagufupapusu_larabujemapeti.pdf
    • http://etefl.store/uploads/1/3/0/6/130605416/6859f0e19.pdf
    • http://mibias.net/uploads/1/3/0/6/130620366/zudotat_vozonenodazoti_kozuxadul_beriripubolu.pdf
    • http://sonic-lee.com/uploads/1/3/0/6/130604658/mipagono_zawajameru_fatotubiwezawil_zumufo.pdf
    • http://runtamatoledo.com/uploads/1/3/0/3/130313588/1426102.pdf
    • http://garrett4delegate.com/uploads/1/3/0/4/130489530/novuwezovitimowurut.pdf
    • http://fuzzsaw.com/uploads/1/3/0/7/130740562/nilireso-nivoregon-beneruwelulalox-xegiri.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f0f.bin
46da54dcb60efebfa53cf82843fa997c43516ea1bcab82dbd9bb87bd68e4807a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F0F 7268 bytes

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