Malicious PDF — malware analysis report

Static analysis result for SHA-256 573c0170b1a61765…

MALICIOUS

PDF

46.7 KB Created: 2020-08-18 20:25:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59088750f0821edf08985d5418b58067 SHA-1: 298efec49ac7932186e74403ec60008e2192d745 SHA-256: 573c0170b1a61765212b05890ae8ee1b90450ae8014c9d3324df632875ffaa18
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains and one critical link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=installation+guide+meaning'. The document body, though heavily corrupted, contains text fragments related to 'Installation guide meaning' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious links. The primary intent appears to be redirecting users to malicious infrastructure.

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/pify?keyword=installation+guide+meaning
    • http://files.innerworkingsofmymind.com/uploads/1/3/0/9/130969190/jazibuwore-bonoluvo-tejabapaxavu-xumaxa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/dibisobufadonufojapavuj.pdf
    • https://cdn.shopify.com/s/files/1/0441/2165/3400/files/83040782120.pdf
    • https://cdn.shopify.com/s/files/1/0437/8509/3272/files/xobimorizofo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35031547028.pdf
    • https://cdn.shopify.com/s/files/1/0432/6978/3720/files/62179240968.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/satofekefekuwozavobijogut.pdf
    • https://cdn.shopify.com/s/files/1/0432/5729/9097/files/mupizararefewur.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_off00007ccf.bin
fbb30332fada90e5e445d565025ce2974df0013c44bd1c52f1c6fc2a92f11b3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CCF 4988 bytes
font_01_sfnt_off00008daa.bin
0e4aa8c8ede231246e28edec575bd77af0ffdba00454c64e1bb06da765cb755e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DAA 9740 bytes

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