Malicious PDF — malware analysis report

Static analysis result for SHA-256 510aec285c68714c…

MALICIOUS

PDF

32.1 KB Created: 2020-04-22 07:58:47 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5757e7161efc67f83fd5ca21fad27821 SHA-1: 04601f4ceb0c8dcd260ac4cc25a51e307e988054 SHA-256: 510aec285c68714cf38a50302aeef96a842bb90c9141df1b8a9240db467e60ec
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 to various domains, indicating a link farm or SEO abuse tactic. The primary heuristic firing points to a mass external PDF link farm, suggesting the document's purpose is to redirect users to a network of other PDF files. No scripts were extracted, and the document body is heavily corrupted, limiting further analysis of the immediate intent beyond link redirection.

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://theonestopgaming.com/uploads/1/3/0/8/130874219/130874219.html#addition+and+subtraction+worksheet+for+year+2
    • http://nareira.net/uploads/1/3/0/9/130969543/26376.pdf
    • http://cgstemhub.net/uploads/1/3/0/9/130969921/7754271.pdf
    • http://evolvesbc.com/uploads/1/3/0/3/130324075/090eec82b9b3.pdf
    • http://oshkoshrugby.org/uploads/1/3/0/8/130874433/garivedam_kevepefigisamut_robubuleb.pdf
    • http://bridalchateaunj.com/uploads/1/3/0/2/130289755/7243026.pdf
    • http://rockinwithronandjon.com/uploads/1/3/0/6/130621698/634264.pdf
    • http://petticoatlaneemporium.com/uploads/1/3/0/5/130546209/lisusiru_kerububajegurek_nevanemik_vades.pdf
    • http://doloresheightsmodern.com/uploads/1/3/0/7/130739456/08f66.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_off00004544.bin
42305eb0c97548d209befebc4f5d7f571adabe3a0fc4a002757363fc0324abaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4544 6344 bytes
font_01_sfnt_off00005eec.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEC 16204 bytes

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