Malicious PDF — malware analysis report

Static analysis result for SHA-256 f13f45b6636078d1…

MALICIOUS

PDF

42.7 KB Created: 2020-08-30 19:48:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64b5a47c42cfcdfd15666bc408a18c9c SHA-1: 3f5fa05fb936f6baf1524893991f8a6da368bb00 SHA-256: f13f45b6636078d1395fad4292709bae6a9e826f95f4c508aa8ea32d9787415d
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used for phishing or malware distribution. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to 'Warframe plains of eidolon farming guide'. The heuristic firings confirm the presence of a malicious redirector and a link farm, indicating a deliberate attempt to drive traffic to malicious 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/wix?keyword=warframe+plains+of+eidolon+farming+guide
    • https://cdn.shopify.com/s/files/1/0431/8239/1451/files/75844921564.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/el_metodo_descriptivo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9861/2636/files/42216758737.pdf
    • https://cdn.shopify.com/s/files/1/0434/4777/9478/files/aplikasi_browser_android_terbaik_dan_tercepat.pdf
    • https://cdn.shopify.com/s/files/1/0434/6678/4932/files/best_android_casual_games_free.pdf
    • https://static.usrfiles.com/ugd/a107db_f5dbdb8d14554feeb8377704a3433696.pdf
    • https://static.usrfiles.com/ugd/97634b_ea74455e9de6461a8582810667c3774e.pdf
    • https://static.usrfiles.com/ugd/badafb_1f53bceab8f24e58a5183aa355f07b3a.pdf
    • https://cdn.shopify.com/s/files/1/0433/9243/4326/files/funibusewirulixexapip.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9869/files/pakizavilojasuludatabuwa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84113106953.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71061356311.pdf
    • https://cdn.shopify.com/s/files/1/0446/7975/7977/files/flask_session_variables.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_off00005c47.bin
17dc8c3a7c7d4bc2921ed83cb1ee9997ba3721fff3da464f27d0d1ed7d109380		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C47 5176 bytes
font_01_sfnt_off00006dcb.bin
0685c70653a17b06cb787d70edb34f7680bc01f8ba77039991a62565157a9388		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCB 10072 bytes
font_02_sfnt_off00009008.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9008 4324 bytes

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