Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a280eba8dd5bf2c…

MALICIOUS

PDF

41.5 KB Created: 2020-07-24 13:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d71f9fa6febcf9ccbc43c5a2a150bdc SHA-1: 9c77ea7cfc83f1e2f5d97a0bb9c976fd9cb6a123 SHA-256: 8a280eba8dd5bf2cc1ebb95d66f55e23d5f45b37925e99b3d41d6be53d247ff2
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector and another for a link farm. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=ghodi+bargi+chaal+chori'. The document body appears to be largely obfuscated or corrupted, preventing a deeper analysis of its specific lure, but the extensive linking strongly suggests a traffic redirection or SEO manipulation scheme.

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.com/pify?keyword=ghodi+bargi+chaal+chori
    • http://files.staragricultureproducts.com/uploads/1/3/1/1/131164032/bde9fffd2f.pdf
    • http://files.mainstreetblytheville.com/uploads/1/3/0/7/130739404/1479354.pdf
    • http://files.apof.eu/uploads/1/3/1/6/131606984/6197172.pdf
    • http://files.workingdogo.com/uploads/1/3/0/8/130813730/kumopunesoxoxinaweva.pdf
    • https://cdn.shopify.com/s/files/1/0430/6996/4439/files/fusolibogedan.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fesitoxerevujadutag.pdf
    • https://cdn.shopify.com/s/files/1/0429/5373/6351/files/botamugumemusupafajujato.pdf
    • https://cdn.shopify.com/s/files/1/0431/1056/4002/files/76479801787.pdf
    • https://cdn.shopify.com/s/files/1/0430/7743/5556/files/30170712408.pdf
    • https://cdn.shopify.com/s/files/1/0434/2870/8519/files/41983740531.pdf
    • https://cdn.shopify.com/s/files/1/0433/7899/9446/files/31752594886.pdf
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/gaviwomiki.pdf
    • https://cdn.shopify.com/s/files/1/0429/7247/9647/files/lizinotedoxap.pdf
    • https://cdn.shopify.com/s/files/1/0430/9280/3744/files/41101337748.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_off00005c08.bin
20fac49667de86c003503bf3633276fda023050b0c5aad2c7217197fb4ff640b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C08 4676 bytes
font_01_sfnt_off00006bf4.bin
98c9197fa407ee5a0ee4c0ca6aa808d130baacc68dfb2b8fda471072570083fa
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF4 14360 bytes