Malicious PDF — malware analysis report

Static analysis result for SHA-256 db30e99aaa1059bb…

MALICIOUS

PDF

46.0 KB Created: 2020-08-02 17:35:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c5981ade53e851d5d4e5be7c8aa3ef1 SHA-1: ebb6d45d6e0740a6633916096f405bc7651c06e4 SHA-256: db30e99aaa1059bb45397d2984ce1560b4ca5f07a9dd40d24de87f694cea469c
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to shopify.com domains hosting PDF files, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning tactic designed to drive traffic to malicious sites. The primary malicious URL identified is https://ttraff.com/pify?keyword=3ds+emulator+android+bios.

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=3ds+emulator+android+bios
    • http://files.carolsullivanperkins.com/uploads/1/3/0/7/130738850/zixejixekemaw_poseni_japavixix_zivutamuso.pdf
    • http://files.communitieshubartspace.com/uploads/1/3/1/4/131454286/xaxawitas_tefimefonisasom_renofupobupe.pdf
    • http://files.sitimeline.com/uploads/1/3/0/7/130775958/ba71a5d.pdf
    • http://files.amomentfrozen.co.uk/uploads/1/3/1/3/131378776/pipivowafe.pdf
    • https://cdn.shopify.com/s/files/1/0433/6621/9941/files/newudusokitavutebat.pdf
    • https://cdn.shopify.com/s/files/1/0431/1518/4295/files/41211144634.pdf
    • https://cdn.shopify.com/s/files/1/0433/0058/5632/files/sovuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/19035949897.pdf
    • https://cdn.shopify.com/s/files/1/0435/2763/5095/files/annie_jacobsen_area_51.pdf
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/goletopunoze.pdf
    • https://cdn.shopify.com/s/files/1/0434/1307/8174/files/vokekegefimakozul.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mutiga.pdf
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/milatelowefadal.pdf
    • https://cdn.shopify.com/s/files/1/0434/1376/6296/files/zudupodivoledifubi.pdf
    • https://cdn.shopify.com/s/files/1/0436/4389/5958/files/97742927449.pdf
    • https://cdn.shopify.com/s/files/1/0436/7027/4201/files/gatadevat.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81603963226.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_off00006edd.bin
71cd7c5776893dae31ed65033cecae1c7d00c8b00faba08e5ef4ebad2609b088		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDD 5180 bytes
font_01_sfnt_off00008056.bin
72148e4fb50d59da79ce92d8f201f6e1689579d4fa09da80a7774bf1ae894aa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8056 13352 bytes

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