Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e335e370076245d…

MALICIOUS

PDF

36.6 KB Created: 2020-09-08 12:23:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f55a93afa99028813182571f9f4c6c8 SHA-1: 6083ec57ddfe3022302b4f9e09da77c3e7e78092 SHA-256: 2e335e370076245d212dae0fb92c6f6f806559f22030144480aa7cd5b021435e
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a PDF link farm. One of these links, 'https://ttraff.link/wix?keyword=chunri+jaipur+se+mangwa+de+gana', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this same URL and other Shopify URLs, suggesting a coordinated effort to direct users to malicious infrastructure. The presence of a malicious redirector link points towards a phishing or social engineering attack.

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.link/wix?keyword=chunri+jaipur+se+mangwa+de+gana
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bijuwosozawubuvenokuzi.pdf
    • https://cdn.shopify.com/s/files/1/0462/5180/2773/files/xilunilete.pdf
    • https://cdn.shopify.com/s/files/1/0429/5576/7967/files/tales_of_berseria_strategy_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/4891/8440/files/temperament_types_and_marriage.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/38165319569.pdf
    • https://cdn.shopify.com/s/files/1/0457/8702/1478/files/povopobebukagojuxuj.pdf
    • https://cdn.shopify.com/s/files/1/0440/1889/2958/files/zobamopanirozamurapato.pdf
    • https://cdn.shopify.com/s/files/1/0429/3859/7539/files/1641109132.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/godezomevorizivopuzuraj.pdf
    • https://cdn.shopify.com/s/files/1/0432/1555/2672/files/sixinotinanasusuzefifesuv.pdf
    • https://cdn.shopify.com/s/files/1/0430/3493/5447/files/888_casino_on_net.pdf
    • https://cdn.shopify.com/s/files/1/0440/8911/4789/files/fafukanifowaxeluviduk.pdf
    • https://cdn.shopify.com/s/files/1/0431/4185/7448/files/kemopitesupev.pdf
    • https://cdn.shopify.com/s/files/1/0428/9619/5737/files/fowenamoxal.pdf
    • https://cdn.shopify.com/s/files/1/0430/1216/1685/files/28155059952.pdf
    • https://cdn.shopify.com/s/files/1/0431/6862/8892/files/74682344534.pdf
    • https://cdn.shopify.com/s/files/1/0435/3759/6575/files/sulowere.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_off00005053.bin
33e62af0bbfbce2b374ad170d54b5fd1f5fa60adba7cdebb7a5cedf273abf15a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5053 5412 bytes
font_01_sfnt_off0000629f.bin
1445c10be4fce13f0e3156c6227d59106181bc035f9fe0012d6e22f5471bf974
pdf-font-stream PDF embedded font (sfnt) at offset 0x629F 10456 bytes