Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9492ed56240a469…

MALICIOUS

PDF

39.8 KB Created: 2020-08-20 10:59:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5eb9bfaacc87e05747e62d4abd1dcd3b SHA-1: 1d05624aab2e910096588f27757844e74e2a6052 SHA-256: f9492ed56240a469a1789c0e044f467e83ba3bc90cd1a46de3552bf02315e320
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links. One of these links, 'https://ttraff.ru/pify?keyword=game+snake+io+jar', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other Shopify-hosted PDF links, suggesting a coordinated effort to distribute malicious content or traffic. The presence of a malicious redirector indicates an attempt to direct users to harmful sites.

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=game+snake+io+jar
    • http://fuxos.5islandsfarm.com/uploads/1/3/1/3/131379698/vewemodisoxij_pudufudowe_xifewukinelog.pdf
    • https://cdn.shopify.com/s/files/1/0431/7691/9194/files/venamifapobog.pdf
    • https://cdn.shopify.com/s/files/1/0428/8030/3270/files/worusoraxufamorurifanun.pdf
    • https://cdn.shopify.com/s/files/1/0431/8098/2434/files/macroscopic_anatomy.pdf
    • https://cdn.shopify.com/s/files/1/0438/1769/7437/files/fuvavopewepemulijivexarol.pdf
    • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/verawikutoxamoxeveb.pdf
    • https://cdn.shopify.com/s/files/1/0432/4402/8059/files/galokoped.pdf
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/bihar_river_map.pdf
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/xetipisofotifeboj.pdf
    • https://cdn.shopify.com/s/files/1/0434/2333/4567/files/sagupixor.pdf
    • https://cdn.shopify.com/s/files/1/0428/9521/2697/files/4975492665.pdf
    • https://cdn.shopify.com/s/files/1/0434/9139/3698/files/sosaxisekufebubina.pdf
    • https://cdn.shopify.com/s/files/1/0435/5453/7624/files/jowijiwokizixula.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_off00004ff3.bin
748e1223d06d8ac717cd07391261dab2073868aa99be05a5f720895b2c6390de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF3 3212 bytes
font_01_sfnt_off00005b73.bin
7f74e954befb7171cf74300db10a3089394716ff62467843712754218505fa7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B73 4972 bytes
font_02_sfnt_off00006c4e.bin
7dd6a1d09310132ae2ceed45dd8f4c7f79d6f10000e982091d11267bfc8c3dd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4E 11720 bytes

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