Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d0a883b1729ebca…

MALICIOUS

PDF

49.2 KB Created: 2020-09-17 02:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 074ec66ab56e1b5c76ca13c42497bf98 SHA-1: 0091f3e0d1f2cb39b667d8973c25504a7ede0c30 SHA-256: 1d0a883b1729ebcad7c18eed776a0b1120a394b6c1e6bf3faf04336adb17f824
150 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 pointing to 'ttraff.me'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=panasonic+nn-sn651+manual', suggesting a lure related to a product manual. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the primary attack vector appears to be directing users to malicious infrastructure via deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.me/wix?keyword=panasonic+nn-sn651+manual
    • https://cdn.shopify.com/s/files/1/0437/3292/6615/files/criminal_breach_of_trust.pdf
    • https://cdn.shopify.com/s/files/1/0429/1028/5990/files/free_sheet_music_trio_violin_viola_cello.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1637/files/lonoxirasin.pdf
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/podunitolen.pdf
    • https://cdn.shopify.com/s/files/1/0480/8340/2909/files/ibps_clerk_application_form_date_2019.pdf
    • https://a9ec5b7b-3e5c-4979-ab34-be6d8f313600.filesusr.com/ugd/4f270c_901873cd0f1f4e8aa35d71995192820b.pdf?index=true
    • https://66532182-e413-4f0a-94ec-334f5b3a33a0.filesusr.com/ugd/dcbeda_cc3b40814ba74cc1b60de50fb2de9a18.pdf?index=true
    • https://0e09aff2-80e4-4705-aa7a-1eb20893fe08.filesusr.com/ugd/5f5755_666bbf420cf94e439bceb849262e3e52.pdf?index=true
    • https://6bae4b3b-710b-4a28-b0e0-d8776d4ae247.filesusr.com/ugd/c12414_ad1e1c4b8c764710911035b10553dcc5.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0430/2831/6313/files/zavatavasabuma.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/8273818996.pdf
    • https://cdn.shopify.com/s/files/1/0431/7665/7051/files/rusire.pdf
    • https://4aca54f2-f333-4569-aa71-b8e1bf327d4b.filesusr.com/ugd/daca0d_bcf7881f7f72432b97dfa44918a3a4de.pdf?index=true
    • https://fc7221a6-0a38-4023-b387-201484b9a1ef.filesusr.com/ugd/0d089b_71bcd49bbd96449caa9648a21f7c36c9.pdf?index=true
    • https://3253cd14-ab7b-4e4b-87a4-b68a0d67e2e6.filesusr.com/ugd/d902bb_137a44ef7e6b44b6834004f2cdd02783.pdf?index=true
    • https://fc49fc79-cbdb-4ab3-86e4-7e98b18c94a4.filesusr.com/ugd/ee9d3f_0632d32506094e7b932a49c92dd41553.pdf?index=true
    • https://89def632-38bf-45c9-bf8d-c1d8049b7025.filesusr.com/ugd/c83fdb_e1927337428c4fd4b3f3d7bb8134696c.pdf?index=true
    • 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/
    • https://3253cd14-ab7b-4e4b-87a4-b68a0d67e2e6.filesusr.com/ugd/d902bb_137a44ef7e6b44b6834004f2cdd02783

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000666b.bin
94af599ea7a9966dcd5b91c7762c36990949ef74a75c7b213488d498c56c63ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x666B 2876 bytes
font_01_sfnt_off00007099.bin
90590d8fdd46b4831f1984dab04a7d2fd070b2968349f2e606ab14d2dbd0ca84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7099 1900 bytes
font_02_sfnt_off0000794a.bin
4925e4a82d592f49fe910e55354b6b9b35d3bdaccd81d025e28893fb5f2d8bfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x794A 5212 bytes
font_03_sfnt_off00008b04.bin
e3fccbfee51ef88f5052a494bb5d83dde4ee9b1cb3ee707be4eea74474fe277a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B04 13316 bytes

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