Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6879cf4be1539cb…

MALICIOUS

PDF

51.8 KB Created: 2020-08-14 19:27:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7687511e8593cfc0a3c63fc7dee3ddef SHA-1: 4ad8ac6a1d381bb903cfc2b254eb2abf32d1733e SHA-256: e6879cf4be1539cba3eccccb20cd82d720540e8a87f8a6e0b6fe2f6d9950367d
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 pointing to Shopify domains hosting other PDFs, which is indicative of a link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=bejeweled+butterfly+game+free', is flagged as a malicious redirector. This suggests the document is designed to funnel users through a series of redirects to potentially malicious content, likely for SEO poisoning or phishing purposes.

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=bejeweled+butterfly+game+free
    • http://files.marymalaney.com/uploads/1/3/1/1/131164460/sozekogizejoxex.pdf
    • http://files.makingbristolbetter.com/uploads/1/3/1/4/131453990/92483ff2.pdf
    • http://fezamaxo.alpinecivicclubboard.com/uploads/1/3/1/4/131438641/wuxire.pdf
    • http://lidokefiw.lincolncollegechapelchoir.com/uploads/1/3/2/6/132681670/5531515.pdf
    • http://files.yanka-online.com/uploads/1/3/2/6/132681826/sikale_vezeruxi.pdf
    • https://cdn.shopify.com/s/files/1/0435/1816/5146/files/begipiwite.pdf
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/mifalare.pdf
    • https://cdn.shopify.com/s/files/1/0431/4356/1376/files/80155980291.pdf
    • https://cdn.shopify.com/s/files/1/0434/8923/1014/files/71532013436.pdf
    • https://cdn.shopify.com/s/files/1/0427/7652/7014/files/scott_s_cheap_flights_reviews.pdf
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/18990332034.pdf
    • https://cdn.shopify.com/s/files/1/0431/5712/7336/files/72412143478.pdf
    • https://cdn.shopify.com/s/files/1/0435/2468/5975/files/divuduvirozojar.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wulusiwebope.pdf
    • https://cdn.shopify.com/s/files/1/0433/7595/2030/files/69462678651.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/business_plan_on_bakery_in_nigeria.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000660c.bin
94a9e483bc9857c1a811933f399352f7011c8e1a7df3b7e276265c035ce97fad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x660C 4092 bytes
font_01_sfnt_off00007464.bin
061a4ba0385408b97e2042a09941b200832050637c56e92bdc64d5ec02aeec32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7464 5124 bytes
font_02_sfnt_off000085f0.bin
7c4880219e9625d2a4e9dd9baa4d28a857a57833d139bcdeda5c52338edb6e7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85F0 1964 bytes
font_03_sfnt_off00008efc.bin
a1d1b860a0dd1a58ffd7f78c6ba89cd5b17b2281f4251cbcb5c49ab682145b83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EFC 10588 bytes
font_04_sfnt_off0000b2f6.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2F6 4324 bytes

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