Malicious PDF — malware analysis report

Static analysis result for SHA-256 91799dcb4b55eecb…

MALICIOUS

PDF

50.9 KB Created: 2020-08-24 10:59:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a443b93fa83971b5892bccd7c4960ca SHA-1: 272d0d0e2b3eb34a53a279641ebc1cb96f7d78f8 SHA-256: 91799dcb4b55eecb13a2f3b49ef5f8a666ba6f810c68af6631be057516dc977f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=title+templates+for+fcpx, which is also listed as a malicious redirector. This suggests the document is designed to trick users into clicking the link to download templates, leading them to malicious infrastructure.

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=title+templates+for+fcpx
    • http://files.southatlantacherokees.com/uploads/1/3/1/6/131607662/bekiguwijifuguraneni.pdf
    • http://files.vanfiretrust.org/uploads/1/3/1/0/131071297/70af7836.pdf
    • http://files.blueridgecru.com/uploads/1/3/2/6/132695384/jebuwoko-kemonire-zuzudumerunele-jutevodeme.pdf
    • http://dexosa.newenglandpsychological.org/uploads/1/3/0/8/130814328/lojuli_puvovili.pdf
    • http://files.godutchtradingco.com/uploads/1/3/0/9/130969048/toligotufigev_vatug_zetavikifujo_girafumapupobo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/mubilejeriwid.pdf
    • https://cdn.shopify.com/s/files/1/0435/2904/4119/files/64412333860.pdf
    • https://cdn.shopify.com/s/files/1/0431/5407/9910/files/mathematics_for_economics_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/7120/1699/files/35105605242.pdf
    • https://cdn.shopify.com/s/files/1/0434/6170/5890/files/benim_hocam_tyt_corafya.pdf
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/80392407466.pdf
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/jarolobirogiwujawojuzupuz.pdf
    • https://cdn.shopify.com/s/files/1/0438/6612/8549/files/arundhati_vettai_tamil_movie_hd.pdf
    • https://cdn.shopify.com/s/files/1/0430/6714/6397/files/vepigefoxutemaputaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4746/0768/files/vasanujumep.pdf
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/tatunizibol.pdf
    • https://cdn.shopify.com/s/files/1/0441/1044/6744/files/learning_english_grammar_free_download.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_off000074d7.bin
77f37610abbfa12bc8177dd6305f5adac59f2dca229f7f7830e359e8d8a5fc66
pdf-font-stream PDF embedded font (sfnt) at offset 0x74D7 5176 bytes
font_01_sfnt_off0000865d.bin
d77bae08d4d720fbb67f0ddc23efbfec9e8c46e4643d00cf6e64aeb3a1cfbd74
pdf-font-stream PDF embedded font (sfnt) at offset 0x865D 9936 bytes
font_02_sfnt_off0000a88c.bin
684a3c196e802b4dc45ee85e0d12f41c83d6b6c6a55a83cec5fb8e332ee9aa36
pdf-font-stream PDF embedded font (sfnt) at offset 0xA88C 16376 bytes