Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d84124ebc4a5b72…

MALICIOUS

PDF

47.4 KB Created: 2020-08-23 15:10:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 501360e94de4625ad337bec51a3b743f SHA-1: 67350c40afa4db928f8a2750424f1443ce87d0f2 SHA-256: 2d84124ebc4a5b728db4a3a4b255dc1a980af52627195e9f3188dcbf4f5016e8
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'Disaster recovery plan templates free', suggesting a lure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the presence of a link to malicious infrastructure, and 'PDF_SEO_LINK_FARM' indicates a large number of outbound links, likely for SEO manipulation or to distribute further malicious content. The primary IOC is the malicious redirector URL.

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/pify?keyword=disaster+recovery+plan+templates+free
    • http://files.sagecreekmusic.org/uploads/1/3/0/7/130739309/jazikuxezeg.pdf
    • http://kagoboda.caringforzebras.com/uploads/1/3/0/9/130969408/xipejuf_jowoguvojezokij_kowiriro.pdf
    • http://xodagodug.supremexjoy.com/uploads/1/3/1/3/131383042/343346b8.pdf
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/69028233291.pdf
    • https://cdn.shopify.com/s/files/1/0434/6550/6966/files/8157543205.pdf
    • https://cdn.shopify.com/s/files/1/0432/7063/5678/files/maruzuvigewebejukotu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6623/6826/files/12461512331.pdf
    • https://cdn.shopify.com/s/files/1/0435/3346/7808/files/bowflex_xtreme_se_manual.pdf
    • https://cdn.shopify.com/s/files/1/0436/1804/2018/files/71276004610.pdf
    • https://cdn.shopify.com/s/files/1/0429/6015/8873/files/homeopatia_libro.pdf
    • https://cdn.shopify.com/s/files/1/0431/9281/1669/files/20224181757.pdf
    • https://cdn.shopify.com/s/files/1/0434/6989/7878/files/jozurusumures.pdf
    • https://cdn.shopify.com/s/files/1/0430/9732/5732/files/rowumubifumoval.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3351/files/falixuwesepulagemupu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7066/0508/files/sotilonowok.pdf
    • https://cdn.shopify.com/s/files/1/0433/2892/9947/files/damed.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_off00007c92.bin
57aa712b273586887c68c3b1a98fe81dd8868c6096cd5155fbaf8bf3bda20b47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C92 5324 bytes
font_01_sfnt_off00008ea2.bin
d4639e2a699030d0e3610503014f39f9e06f2126f781fb180f4b28eaf55f34c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA2 9852 bytes

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