Malicious PDF — malware analysis report

Static analysis result for SHA-256 48406c748620da26…

MALICIOUS

PDF

43.6 KB Created: 2020-07-25 03:05:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dee0509793124a67b3aeb56b18306c8 SHA-1: 4ddfce92955977a2a46c78e219615ee0102016f5 SHA-256: 48406c748620da2677640e9bad02f90bb53bf6a94abe37d525dea05faa9a6910
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/pify?keyword=battleship+game+rules+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, suggests a lure related to 'Battleship game rules pdf'. No scripts were extracted from this sample.

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=battleship+game+rules+pdf
    • http://files.brandimcpeak.com/uploads/1/3/0/7/130738753/0d3cf.pdf
    • http://files.joyforthejourney.org/uploads/1/3/1/8/131871484/wodovesoxo.pdf
    • http://files.dappsinfintech.com/uploads/1/3/0/9/130969265/cca6a.pdf
    • https://cdn.shopify.com/s/files/1/0430/8582/4164/files/jusekugupow.pdf
    • https://cdn.shopify.com/s/files/1/0429/4439/7468/files/juravoxexowonajaxiroma.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/kewokirugegajiviro.pdf
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/rutelaveleladatusuxemalaj.pdf
    • https://cdn.shopify.com/s/files/1/0435/2186/7930/files/wisexilodolefuwuxaripi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/44117817545.pdf
    • https://cdn.shopify.com/s/files/1/0437/0392/6938/files/demosijanovege.pdf
    • https://cdn.shopify.com/s/files/1/0432/1997/6350/files/fasojefepidakejelir.pdf
    • https://cdn.shopify.com/s/files/1/0430/9054/2753/files/kijezalitokituwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/7034/0772/files/bomog.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_off00006db1.bin
2289cfada33d0597c48ea51e2509a0887fd64e4adc4b5c87ba3096c57ab1c37b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB1 5168 bytes
font_01_sfnt_off00007f44.bin
8a987a884f3316922a0b4ed18fce64c7d2f9cecdb5555b3f8cce2e9f81e8b06a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F44 10052 bytes

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