Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b68f2662d89f1f2…

MALICIOUS

PDF

42.4 KB Created: 2020-04-05 09:19:53 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8efcb771455ab84ea93ea21e60cbb6c5 SHA-1: 2635cafc75af6f0c3e7f2cf6e01d60fbcc88cb18 SHA-256: 2b68f2662d89f1f2a51d3e3a0643c4edf4f2b2f20459f4ae703598cf14a228a6
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used for SEO spam or to distribute malicious content. The document body text is minimal and appears to be a lure related to ISO standards, but the primary malicious activity is the extensive link farm pointing to various domains. 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://mslc.email/uploads/1/3/0/2/130289455/130289455.html#qual+a+diferen%C3%A7a+da+iso+9000+e+9001
    • http://smalyshkinart.com/uploads/1/3/0/6/130603802/gonolukepemarek_saxes_kugajupasufoj.pdf
    • http://defensivedames.com/uploads/1/3/0/6/130639281/940e48900ab.pdf
    • http://ericdamianlopez.com/uploads/1/3/0/6/130603810/fopuxofi_wogozamiwimetan_jawemup.pdf
    • http://ristorantebenedetto.it/uploads/1/3/0/6/130604633/jikuvaxexa_gorotibif_vagowufim.pdf
    • http://sierrasun.ca/uploads/1/3/0/2/130273804/4760935.pdf
    • http://fwcompagny.com/uploads/1/3/0/6/130605341/2730019.pdf
    • http://cigarclubmodesto.com/uploads/1/3/0/4/130435906/fenoxekarulebogipo.pdf
    • http://montaigneandmadison.com/uploads/1/3/0/7/130739006/6221550.pdf
    • http://souptahoe.com/uploads/1/3/0/2/130270900/lazug_zepov_dofupe_salorogofivu.pdf
    • http://somersetabbey.net/uploads/1/3/0/7/130775387/5159511.pdf
    • http://consult8.org/uploads/1/3/0/6/130605452/3005688.pdf
    • http://kalliegay.com/uploads/1/3/0/6/130639868/6c97b9e63.pdf
    • http://lifeisapuzzle.org/uploads/1/3/0/3/130379110/vapekadexujonezila.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_off000077bb.bin
aa6069c8cab334e6f34104082d450cb43dd79c1f9b15696066f0858c6a9f9552		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77BB 10168 bytes

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