Malicious PDF — malware analysis report

Static analysis result for SHA-256 2835af5881b8b349…

MALICIOUS

PDF

33.0 KB Created: 2020-08-08 03:32:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ffb4a4c4c4d89d3b748b8474f26f8ce SHA-1: f6cde6c47c50d253f5840b1cc0c719702303aacf SHA-256: 2835af5881b8b349ee3b48ad3734c09911d9838dd1080ae0f345346e0c9a801d
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests the document is part of a link farm designed to distribute malware or phish users. The primary malicious URL is https://ttraff.cc/wb?keyword=queen%20guitar%20chord%20songbook%20pdf, which is likely used to redirect to a malicious payload or phishing page.

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/wb?keyword=queen%20guitar%20chord%20songbook%20pdf
    • http://files.bridgit-dengel-gaspard.com/uploads/1/3/1/4/131453850/pekubemepile.pdf
    • http://ferilexi.blueoceanapparel.net/uploads/1/3/1/6/131606758/2478841.pdf
    • http://files.lewisandclarkriverboat.com/uploads/1/3/0/7/130775267/dopotane.pdf
    • https://cdn.shopify.com/s/files/1/0430/8870/7738/files/sbi_bank_dd_form.pdf
    • https://cdn.shopify.com/s/files/1/0436/1761/6034/files/xivanarajapawuri.pdf
    • https://cdn.shopify.com/s/files/1/0430/4352/0666/files/butikuvibilivonagi.pdf
    • https://cdn.shopify.com/s/files/1/0437/5891/1649/files/complete_key_for_schools_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/3885/0719/files/xirumoda.pdf
    • https://cdn.shopify.com/s/files/1/0434/8379/1526/files/jugon.pdf
    • https://cdn.shopify.com/s/files/1/0430/0688/6051/files/81219568197.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0118/files/bitilifovekudujarijito.pdf
    • https://cdn.shopify.com/s/files/1/0428/0611/6511/files/zefagodofomokujomuwo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/sogeze.pdf
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/wanufosenepalera.pdf
    • https://cdn.shopify.com/s/files/1/0435/5099/8679/files/anarchs_unbound.pdf
    • https://cdn.shopify.com/s/files/1/0433/2178/6521/files/25338881216.pdf
    • https://cdn.shopify.com/s/files/1/0435/0102/7493/files/succubus_race_5e.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_off00004423.bin
ff173185b1d9065fc17d25eb7e575b9d2363555566c493d9f76e5c8833067e97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4423 5648 bytes
font_01_sfnt_off00005751.bin
686f6f6cf267315a2f774e04f418abc7e7402c9c0596cf81d444f496bdb930dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5751 9372 bytes

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