Malicious PDF — malware analysis report

Static analysis result for SHA-256 4008d8453e5b87f6…

MALICIOUS

PDF

38.7 KB Created: 2020-08-18 15:32:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d5a87622b98e50c78da741b72815eec2 SHA-1: 2f844f31f8a60a5513e4b594948d0432ca5567b1 SHA-256: 4008d8453e5b87f6a550ae091e70a247c79392a354900404a7dd49f8769cab5f
128 Risk Score

Malware Insights

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

The PDF contains a call-to-action disguised as a movie download link. This link, 'https://ttraff.ru/pify?keyword=kshatriya+full+movie+hd++720p', redirects to malicious infrastructure. The document also contains a large number of external PDF links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure the final malicious destination.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=kshatriya+full+movie+hd++720p
    • http://files.grandstrandsaltwateranglers.com/uploads/1/3/0/7/130775515/fiwunegugafevuvaba.pdf
    • http://files.matthewmayes.net/uploads/1/3/0/7/130738765/fojatajor.pdf
    • http://pupisi.smaexhibition-self.org/uploads/1/3/1/4/131437987/tideruvisivudesuru.pdf
    • https://cdn.shopify.com/s/files/1/0433/0360/0283/files/vajawobibuwikawazun.pdf
    • https://cdn.shopify.com/s/files/1/0451/1842/3194/files/celerio_car_accessories.pdf
    • https://cdn.shopify.com/s/files/1/0430/7428/9813/files/strategic_family_therapy_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0433/6153/4111/files/kizifakoruju.pdf
    • https://cdn.shopify.com/s/files/1/0428/2816/9382/files/22045124768.pdf
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/gunigifog.pdf
    • https://cdn.shopify.com/s/files/1/0437/7290/3585/files/22061792776.pdf
    • https://cdn.shopify.com/s/files/1/0431/6577/8076/files/juloli.pdf
    • https://cdn.shopify.com/s/files/1/0434/1609/2828/files/80179398989.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000044f3.bin
83044658510810a518aedfb0c2864b8f537da2e5bd5e2b01f14cf6259adb3c9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44F3 5768 bytes
font_01_sfnt_off00005886.bin
5cb4638e9070b9f3670812005d5990edd7a43fae7c96941992fd715b60624efd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5886 9512 bytes
font_02_sfnt_off0000794b.bin
c8d346df762f100b7f07f64474ebeefa7e764d1f3fb651c1b54482bebfbb2c95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x794B 16060 bytes

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