Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeeb5afb5235dfa4…

MALICIOUS

PDF

43.7 KB Created: 2020-08-20 02:18:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: db60b427cf40c5f7aa28b39b66dcea1e SHA-1: dc10f273193e96cccc5c167bfccf3073df9c35c9 SHA-256: eeeb5afb5235dfa4b02c6ed7e6e67350b334869587aaafc51d8e7d6a977e2b04
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains heuristics indicating it is a malicious redirector and uses a fake invoice/payment lure. The document body, though heavily obfuscated, contains text related to a 'Birmingham city council tax reduction form' and includes the malicious redirector URL. This suggests the document is designed to trick users into clicking the link, which leads to malicious infrastructure.

Heuristics 5

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=birmingham+city+council+tax+reduction+form
    • http://files.aplincookgardner.net/uploads/1/3/0/9/130969608/9ac8faf519b0.pdf
    • http://gusoluka.disneylandiscreativity.com/uploads/1/3/2/6/132680813/rifodij.pdf
    • http://files.taiwan-yuchia.com/uploads/1/3/1/6/131606491/067e287cf79a759.pdf
    • http://files.alphaesqcleveland.com/uploads/1/3/1/8/131856713/gaxujifewa_vudipi.pdf
    • http://files.perfectpolishedmarketing.com/uploads/1/3/1/3/131384559/8076dc.pdf
    • https://cdn.shopify.com/s/files/1/0432/4645/2899/files/hebrew_alphabet_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0432/3383/7224/files/67974502547.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2797/files/18066367457.pdf
    • https://cdn.shopify.com/s/files/1/0432/8056/4392/files/91331978285.pdf
    • https://cdn.shopify.com/s/files/1/0435/7432/9499/files/how_to_write_a_dedication.pdf
    • https://cdn.shopify.com/s/files/1/0429/8955/1770/files/retoguwad.pdf
    • https://cdn.shopify.com/s/files/1/0446/0806/1604/files/ars_poetica_miosz.pdf
    • https://cdn.shopify.com/s/files/1/0437/4953/9989/files/33853361040.pdf
    • https://cdn.shopify.com/s/files/1/0432/8210/4478/files/molixalejamidomukupin.pdf
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/52480634913.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/
    • https://cdn.shopify.com/s/files/1

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bde.bin
741feb200f58abc30a1769f64f0db71a7f8a7d0f72fcb81b42d9c756b97aaa0c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDE 5476 bytes
font_01_sfnt_off00006e44.bin
c058119af7f467be315fbe2fd43ab3091ea0c4d5e19448511d232e2c72ebdc88
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E44 6080 bytes
font_02_sfnt_off00007df1.bin
9b945c23ca8c09f93ea73853389af48416817a15de425cc98cdf5b9a00b40bb0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DF1 10356 bytes