Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc6114f22ba5d579…

MALICIOUS

PDF

45.4 KB Created: 2020-08-18 23:22:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 656e2027b92c78f9608e6a1eb387fe66 SHA-1: 5c09e39365446f816648006e0cdf02ed46e76fa2 SHA-256: dc6114f22ba5d5794b0a22470cdb0433968e3a1ebdfe2ad416f8992180f65f93
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, suggesting an attempt at SEO manipulation or a link farm. One critical heuristic identified a malicious redirector link, https://ttraff.ru/pify?keyword=college+football+championship+2019+halftime+show+performers, which is likely the primary malicious payload delivery mechanism. The document body contains garbled text alongside the malicious URL, indicating it's likely a lure to encourage clicks on the embedded malicious link.

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/pify?keyword=college+football+championship+2019+halftime+show+performers
    • http://files.sadhanayama.com/uploads/1/3/2/3/132303270/82b38.pdf
    • http://files.netherhaughfarm.com/uploads/1/3/0/7/130776257/3a06a0d6.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gomejalubewetilukifij.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/magobusiriwolozun.pdf
    • https://cdn.shopify.com/s/files/1/0433/2634/1272/files/46856838606.pdf
    • https://cdn.shopify.com/s/files/1/0430/8241/6281/files/6619804888.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4741/files/ziwawugexig.pdf
    • https://cdn.shopify.com/s/files/1/0427/8353/9366/files/brahms_lullaby_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/60176232366.pdf
    • https://cdn.shopify.com/s/files/1/0434/0577/0909/files/cg_comedy_video_hd_2019.pdf
    • https://cdn.shopify.com/s/files/1/0434/0128/1703/files/yamla_pagla_deewana_full_movie_123mkv.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/78703367913.pdf
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/dumuxoxuwu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/fps_script_hub_script.pdf
    • https://cdn.shopify.com/s/files/1/0439/2668/3816/files/apollo_blood_test_report_online.pdf
    • https://cdn.shopify.com/s/files/1/0440/5270/9526/files/gafuwivixukov.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_off00006f0c.bin
440a0e02a975eb0eeea730e4f6754c632146d998c3e218a28738241e39ee7d28
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F0C 6048 bytes
font_01_sfnt_off00008394.bin
ace48735260a58cf77a5ef700596760d947e82bb57e3401fde0b6bc5696fbebf
pdf-font-stream PDF embedded font (sfnt) at offset 0x8394 10752 bytes