Malicious PDF — malware analysis report

Static analysis result for SHA-256 2145662716300504…

MALICIOUS

PDF

41.3 KB Created: 2020-08-22 01:03:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8054183f94c7ff3afc4ca483048c62d7 SHA-1: 77e7f174ca98adb760b216ed180a93f150110892 SHA-256: 21456627163005042ebe5a97980f78b61e1b75257a3c43310058afa5e393d1e9
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, contains text related to 'Adinkra symbols meanings pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm further supports 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.com/pify?keyword=adinkra+symbols+meanings+pdf
    • http://files.vnchha.com/uploads/1/3/1/0/131071240/dcda938399c.pdf
    • https://cdn.shopify.com/s/files/1/0431/5673/4109/files/77296115879.pdf
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/vujipekiva.pdf
    • https://cdn.shopify.com/s/files/1/0435/5656/9249/files/momurunok.pdf
    • https://cdn.shopify.com/s/files/1/0438/5118/6336/files/kukosukavusevizaweminigi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4298/7423/files/just_eat_plc_annual_report_2019.pdf
    • https://cdn.shopify.com/s/files/1/0439/3598/9915/files/56789784749.pdf
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/90697264094.pdf
    • https://cdn.shopify.com/s/files/1/0433/0697/5382/files/kosebanolefikiroka.pdf
    • https://cdn.shopify.com/s/files/1/0449/8666/3070/files/nacionalismo_econmico.pdf
    • https://cdn.shopify.com/s/files/1/0430/4414/3253/files/tuvolagusigometurefevi.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_off00006299.bin
9a1f14eceba62a4ec00eabea80152669adaa069c15e44409d50a6546ad88b24f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6299 5656 bytes
font_01_sfnt_off000075c6.bin
c9c8f5731f4c59822ec4685eb4ff2c80c216b308b54813e9ecc5d68c7cd270ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75C6 10308 bytes

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