Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d4633a069a400b6…

MALICIOUS

PDF

36.9 KB Created: 2020-08-15 18:43:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 410a828d2ec1922cf8918d5675186a2d SHA-1: 6d2a9128e44c04310b14ab17b19fc28f7b6232c2 SHA-256: 3d4633a069a400b602f23befd5baa57cbbed110f01a0d8c3fc5007404f7356c7
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.cc, with a keyword suggesting a lure related to Battlenet update issues. The document also exhibits characteristics of a PDF SEO link farm, embedding numerous external links, many hosted on Shopify, which is a common tactic to obscure malicious destinations. The primary malicious URL is https://ttraff.cc/pify?keyword=battlenet+can%2527+t++update.

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.cc/pify?keyword=battlenet+can%2527+t++update
    • http://files.henhousepublishing.com/uploads/1/3/1/3/131380915/04df11dd9ba020.pdf
    • http://files.selahjewelrydesign.com/uploads/1/3/0/7/130739557/jawodekokaruv-sunise.pdf
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/58778949312.pdf
    • https://cdn.shopify.com/s/files/1/0437/3980/7893/files/93853917951.pdf
    • https://cdn.shopify.com/s/files/1/0435/9208/9759/files/dawowidededoxaxuxoselupes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dejozetopugewafapo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72707516801.pdf
    • https://cdn.shopify.com/s/files/1/0428/4124/3814/files/44234836538.pdf
    • https://cdn.shopify.com/s/files/1/0436/1289/7437/files/car_wash_business_plan_in_ethiopia.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_off000054bd.bin
97d8df121eb4438105e48cb533d24c8c0fab6974c3396f4f23dc9fb6465bfeca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54BD 4876 bytes
font_01_sfnt_off00006567.bin
743fe1552c7eb0db809c88fe29d7188980eac872e98b35201da46ee13a1c7d23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6567 9888 bytes

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