Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec5c700256942a15…

MALICIOUS

PDF

33.4 KB Created: 2020-08-31 04:56:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5669b6f0d3953ff0d57b057bee526d93 SHA-1: 7cbfca4f63536b8cdc0c2f0b81e90ee739d25f9f SHA-256: ec5c700256942a1579740053a56d109884f454057dc81b42cc73c19821f7f70a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/wix?keyword=akai+mpk+mini+manual+pdf', is designed to lure users by appearing to offer a manual for an Akai MPK Mini. The file also exhibits characteristics of a link farm, embedding numerous external links, many hosted on Shopify. The primary malicious link likely leads to a further stage of attack.

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.cc/wix?keyword=akai+mpk+mini+manual+pdf
    • https://cdn.shopify.com/s/files/1/0429/9623/6447/files/sogodoxurexano.pdf
    • https://cdn.shopify.com/s/files/1/0440/2174/3781/files/fujupasimu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8094/9658/files/71720696333.pdf
    • https://cdn.shopify.com/s/files/1/0432/6277/1366/files/pojovabiroxedodota.pdf
    • https://cdn.shopify.com/s/files/1/0440/0663/7726/files/penodemasifebuxoveloral.pdf
    • https://static.usrfiles.com/ugd/b8c837_7295b7dca1ec4c1ea5e646ec88bd6e5a.pdf
    • https://static.usrfiles.com/ugd/d3758e_ede206b1852e43efa7499711cc25df39.pdf
    • https://static.usrfiles.com/ugd/b8c837_c9bea05a4a694db188dccb50f09b1215.pdf
    • https://static.usrfiles.com/ugd/33a16d_6661bf028b0647309d5cad4d1f286ef2.pdf
    • https://static.usrfiles.com/ugd/b8c837_88b9ef4220b64299b85ebb8981df6e3a.pdf
    • https://cdn.shopify.com/s/files/1/0462/5255/6437/files/atmosphere_emunand_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/vinayaka_vratha_kalpam_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3709/0211/files/67109521963.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_off000045ea.bin
a517d44b8ba50c407c1b9ef8d98ff6faac44a1b48c7f4a729883af306b8d8cf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45EA 4964 bytes
font_01_sfnt_off000056c3.bin
35fd378c102333c274da8165b80e8d94f9f81ac1e51e77077ea0111eede06d5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56C3 10108 bytes

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