Malicious PDF — malware analysis report

Static analysis result for SHA-256 aadcd0aab60e924c…

MALICIOUS

PDF

33.0 KB Created: 2020-07-08 23:25:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f0bfd3f9843c4eca643b1365564e31a SHA-1: b0da23c8c610fa5f49f162aafdf6cbf1156776a8 SHA-256: aadcd0aab60e924c8d7f5eccf81489090d9203d3037c4c942b3b64905577f9ac
120 Risk Score

Malware Insights

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

The PDF document contains a lure related to an electric pan manual, but its primary function is to redirect users to malicious infrastructure. It embeds a large number of links, including a critical redirector link to ttraff.ru, and numerous other PDF links, indicating a link farm or SEO poisoning tactic. The document body itself contains garbled text alongside the malicious URLs, suggesting it's designed to obscure the malicious intent.

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.ru/wb?keyword=manual%20da%20panela%20el%C3%A9trica%20brit%C3%A2nia
    • http://files.talesfromawargameshed.com/uploads/1/3/1/0/131071035/4942229.pdf
    • http://files.sanmateolimos.com/uploads/1/3/1/3/131383553/612544a.pdf
    • http://files.gilliantorckler.com/uploads/1/3/0/8/130874629/gomenevidi-kinepowa-xasokipa-xupuzateseroji.pdf
    • http://files.languagelearningforchildren.com/uploads/1/3/1/1/131164007/savaradoge.pdf
    • http://files.kkcoreconnectionpilates.com/uploads/1/3/1/4/131406433/damorif.pdf
    • http://files.williamsburgrec.com/uploads/1/3/2/6/132682745/tagogumolizim_fofuzipupi.pdf
    • https://teliwupuko.files.wordpress.com/2020/07/52309220257.pdf
    • https://lanopuxaje.files.wordpress.com/2020/07/fulotugajakatogemulem.pdf
    • https://jewiwirivi.files.wordpress.com/2020/07/fuwesesu.pdf
    • https://kuxadil.files.wordpress.com/2020/07/tarekumaboludopopolaw.pdf
    • https://bufabod.files.wordpress.com/2020/07/32635726138.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19189676900.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wizivudid.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21533622499.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_off0000457d.bin
aa8c723e02132913451e582130ef964b3d05fac0e0e7f8f78ba11d7e5b24acfc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x457D 5188 bytes
font_01_sfnt_off00005648.bin
3e8594257eb2a448b374e912a976862fe0c460b9d6af99a22e600dbf353224a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5648 9364 bytes

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