Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf89e229bd08348b…

MALICIOUS

PDF

55.0 KB Created: 2020-08-22 01:41:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 36f7f96077f8a0eec938fb3392a1bac7 SHA-1: a2b97cc1751b9af2314961031091bdf073a1cc97 SHA-256: bf89e229bd08348b0da0d7de0167017d350c7a4fde3d9570fe43286698cb8f2b
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm heuristic, with numerous links to Shopify-hosted PDFs, suggesting an attempt to obscure the final destination or distribute content. The document body contains the malicious URL and a call-to-action phrase, reinforcing the lure. The primary attack pattern involves redirecting the user to malicious infrastructure.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bike+race+3d+game++java
    • http://files.spaghettiplay.com/uploads/1/3/0/9/130969358/nikabonuzep.pdf
    • http://files.atomicthreadsclothingboutique.com/uploads/1/3/2/6/132695865/245d5c5f2.pdf
    • http://gosedeluf.cathstonardtextilearts.com/uploads/1/3/1/4/131437987/6350269.pdf
    • http://nusopaf.ultimateoldiesradio.com/uploads/1/3/2/3/132303359/7940784.pdf
    • https://cdn.shopify.com/s/files/1/0431/5168/7848/files/psychobiology_of_altered_states_of_consciousness.pdf
    • https://cdn.shopify.com/s/files/1/0431/1855/9389/files/bakitepupoki.pdf
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/bobogetasetifuvon.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4155504299.pdf
    • https://cdn.shopify.com/s/files/1/0431/7115/2023/files/43535080647.pdf
    • https://cdn.shopify.com/s/files/1/0429/8119/5927/files/68969261917.pdf
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/foninerisulijetojibakonav.pdf
    • https://cdn.shopify.com/s/files/1/0454/7294/0198/files/mozixezidodamerixi.pdf
    • https://cdn.shopify.com/s/files/1/0435/9304/0029/files/negelaperake.pdf
    • https://cdn.shopify.com/s/files/1/0432/0677/0843/files/491116730.pdf
    • https://cdn.shopify.com/s/files/1/0435/6620/3029/files/dilosovagefo.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_off00008286.bin
74955845ce58960312a5944279ede03385094a3bf7eb6c0ee6041f552b2fb989
pdf-font-stream PDF embedded font (sfnt) at offset 0x8286 6108 bytes
font_01_sfnt_off0000970a.bin
85732b58c4c2e739022823180c59fc73cbfccf94bafe8b4f28e5fe2b6b58ff38
pdf-font-stream PDF embedded font (sfnt) at offset 0x970A 5464 bytes
font_02_sfnt_off0000a997.bin
ea018353495d8d7df05043744b284ede329d2505d022ab2eec9c65b8429a6934
pdf-font-stream PDF embedded font (sfnt) at offset 0xA997 10912 bytes