Malicious PDF — malware analysis report

Static analysis result for SHA-256 29f118f6b00dd550…

MALICIOUS

PDF

38.2 KB Created: 2020-09-02 00:37:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8504d55d54174af79df0967b7920892c SHA-1: 0f8706094aa33e459bf6b2c27d778b05b23214c3 SHA-256: 29f118f6b00dd550b537f0cef0dc7851049aeaf563cdf795fbd1fa99b375cd15
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a tactic to manipulate search engine results or distribute content through a link farm. The primary malicious URL identified is ttraff.ru, which is flagged as a redirector.

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.ru/wix?keyword=horizon+zero+dawn+guide+book+pdf
    • https://cdn.shopify.com/s/files/1/0430/2484/2906/files/welufebipakoxawusilebogat.pdf
    • https://cdn.shopify.com/s/files/1/0435/8638/8123/files/boluxezexigowa.pdf
    • https://cdn.shopify.com/s/files/1/0454/3139/0364/files/16930330371.pdf
    • https://cdn.shopify.com/s/files/1/0432/4491/2808/files/can_i_download_a_list_of_my_audible_books.pdf
    • https://cdn.shopify.com/s/files/1/0430/8969/0773/files/fuvugomitaboguj.pdf
    • https://cdn.shopify.com/s/files/1/0431/0951/5413/files/android_screen_capture_api.pdf
    • https://cdn.shopify.com/s/files/1/0460/4218/5892/files/30748982913.pdf
    • https://cdn.shopify.com/s/files/1/0434/8300/5093/files/kuzuxavebitaba.pdf
    • https://static.usrfiles.com/ugd/0a052f_4954a940079c47788a25392bf213e00a.pdf
    • https://static.usrfiles.com/ugd/f34823_04dfcb6b436e4e72b6cccca094da80ab.pdf
    • https://static.usrfiles.com/ugd/b8c837_e345778d15f14489ac48fdea86ae8bb2.pdf
    • https://static.usrfiles.com/ugd/cfbfd2_d5397eb9ad6741f9ae546c569532c8e2.pdf
    • https://static.usrfiles.com/ugd/b65acf_f2243bca15844ae2872a100d4145cfa3.pdf
    • https://cdn.shopify.com/s/files/1/0436/9950/3257/files/gegepiwawuzugavonu.pdf
    • https://cdn.shopify.com/s/files/1/0463/2615/3371/files/lifanowupikufimodewi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4633/0791/files/91823198964.pdf
    • https://cdn.shopify.com/s/files/1/0432/1103/0683/files/91033098716.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_off00005684.bin
c8e4eb89b86a82185b739335a9c8ff7329b61086cc02931b7406f52888020aca
pdf-font-stream PDF embedded font (sfnt) at offset 0x5684 5308 bytes
font_01_sfnt_off000068bd.bin
f4a575a402085091452c683f21bc8b22ccec81fa2bc106a2a2fee5a941936570
pdf-font-stream PDF embedded font (sfnt) at offset 0x68BD 10412 bytes