Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7db2731f63c9941…

MALICIOUS

PDF

39.7 KB Created: 2020-07-28 18:53:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89190e77382379b459f6459eed8c5332 SHA-1: 2affa17dc62c69cc6369d36aaa7c5bad9b4ce391 SHA-256: c7db2731f63c9941acbef786fd65acb65bd2b6bbf235b828388892d1835c38f9
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains text related to 'Aradhana bengali movie video song', suggesting a lure to entice users to click the malicious link.

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=aradhana+bengali+movie+video+song
    • http://files.randygachet.com/uploads/1/3/2/6/132682542/156c6d.pdf
    • http://files.akiineventos.com/uploads/1/3/1/6/131606819/bozuxigaposete.pdf
    • http://files.haywardcharterbus.com/uploads/1/3/1/4/131483200/3d7c0c8063348.pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/15511761015.pdf
    • https://cdn.shopify.com/s/files/1/0435/8891/1267/files/givukigupikifiwutugamigu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/jagirifoguje.pdf
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/xuxapisawarepuxut.pdf
    • https://cdn.shopify.com/s/files/1/0433/2994/5758/files/xabarinajozop.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/kabobufasixivanonevajep.pdf
    • https://cdn.shopify.com/s/files/1/0435/4726/3128/files/25229361937.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/48880371243.pdf
    • https://cdn.shopify.com/s/files/1/0432/2613/6731/files/24637879962.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/bulebefaboripamirapopasu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4445/4056/files/xafapajura.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_off00005e26.bin
54ef38b172b4e44019d88897cb1f27e3bc26200780b3410a8e5ab4e42281767a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E26 5136 bytes
font_01_sfnt_off00006f5d.bin
ae47613a18db4e5979dc72f0a7c91cd0adcadb94153f6c80849650d92013f3d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F5D 9900 bytes