Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbee16f1ef55769a…

MALICIOUS

PDF

46.1 KB Created: 2020-08-08 21:58:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4808877797e6becc6efbbcd46263ec9f SHA-1: e0f2fc5e56362e80c117c62e3078336768d81775 SHA-256: fbee16f1ef55769affb7a186774dc5bf5a9baddc1a77542286b13ca66f5b29d5
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, likely as part of an SEO link farm. One critical heuristic firing indicates a direct link to a known malicious redirector, ttraff.cc, which is also present in the document body. This suggests the primary intent is to redirect users to malicious content, potentially for phishing or malware distribution.

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=blossoms+of+the+savannah+novel+pdf
    • http://files.hickshistory.com/uploads/1/3/0/7/130775917/guxer.pdf
    • http://files.duffdesigns.net/uploads/1/3/1/3/131383548/07fe9cfa3e.pdf
    • http://files.gestaltleadershipcoach.com/uploads/1/3/0/9/130969169/nanamovekividu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7358/4793/files/kyou_kara_maou.pdf
    • https://cdn.shopify.com/s/files/1/0431/2432/6564/files/budapest_subway_map.pdf
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/46420620761.pdf
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/latisikako.pdf
    • https://cdn.shopify.com/s/files/1/0428/1873/2191/files/gexiriruwigipapum.pdf
    • https://cdn.shopify.com/s/files/1/0429/1218/6531/files/timorodunejabu.pdf
    • https://cdn.shopify.com/s/files/1/0434/2834/8060/files/how_to_use_digital_multimeter_for_mobile_repairing.pdf
    • https://cdn.shopify.com/s/files/1/0435/5912/5160/files/osrs_icthlarin_s_little_helper.pdf
    • https://cdn.shopify.com/s/files/1/0433/5055/6821/files/xogutikijovuruluxes.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/nugowavojezobolep.pdf
    • https://cdn.shopify.com/s/files/1/0451/3811/6773/files/emotional_intelligence_test_questions.pdf
    • https://cdn.shopify.com/s/files/1/0434/4584/6168/files/nuwave_induction_cooktop_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/82810051745.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3602/files/vupop.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_off000068b3.bin
aa925a979c9b3badea90e9b1f26623e4e3147bcb27adfb547bde0cdd392f06f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x68B3 5036 bytes
font_01_sfnt_off000079b3.bin
0c768aed06f133eded565c6f00dc578a02022637f53950c4163306c7083dfb4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x79B3 10352 bytes
font_02_sfnt_off00009d1e.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D1E 4324 bytes