Malicious PDF — malware analysis report

Static analysis result for SHA-256 e745b954f63b5784…

MALICIOUS

PDF

53.4 KB Created: 2020-08-01 09:09:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67b4bc291f1edcd685a5b43bb46736f3 SHA-1: bb88e760549aae9d06edd060aca41e48f5426cdb SHA-256: e745b954f63b5784149e095147372bf3ac6c06a822ae3a7344defb1e5fe24153
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=youtube+topic+music', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to YouTube and music, suggesting a potential lure. The presence of numerous Shopify-hosted PDF links indicates a coordinated effort to distribute content, likely for SEO poisoning or traffic manipulation.

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=youtube+topic+music
    • http://files.rmscocanada.ca/uploads/1/3/0/7/130739704/luposu-dadomopi-gurejo.pdf
    • http://files.lenamadison.com/uploads/1/3/0/7/130739239/bobixelikej_jefaxofeliw.pdf
    • http://files.hillcountrynatural.com/uploads/1/3/0/7/130776386/b8efd48312.pdf
    • http://files.mgarrigan.com/uploads/1/3/0/7/130775350/e96e7dc6262.pdf
    • http://files.wecanwrite.ca/uploads/1/3/0/7/130775223/rumuja_zudatomifa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6499/1637/files/78662523379.pdf
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/zesejoxovetuzomeluk.pdf
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/nalavakuxuturireki.pdf
    • https://cdn.shopify.com/s/files/1/0428/8725/0087/files/xogubapolufejununaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/0147/9321/files/12651199305.pdf
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/jewurojezid.pdf
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/45689239598.pdf
    • https://cdn.shopify.com/s/files/1/0431/5149/1236/files/86061497910.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5555796470.pdf
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/xoxalapatovaturufavufe.pdf
    • https://cdn.shopify.com/s/files/1/0434/6671/9385/files/kavokapozetibizufe.pdf
    • https://cdn.shopify.com/s/files/1/0439/1829/5195/files/73580389780.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068d3.bin
870bcfd83c17aea5f77029047e63191939d072206ec5b6ecc274c759581d4939		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68D3 4528 bytes
font_01_sfnt_off000078c0.bin
57cf76ab1bbbd833486f253c954c7c9c5c00a64e42fb72b618e25e64ef4d55aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78C0 4616 bytes
font_02_sfnt_off00008881.bin
4da100047e33d206570539512ce868402b21c94eb973583d44eabe345ddb9a1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8881 15236 bytes
font_03_sfnt_off0000b84f.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB84F 4324 bytes

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