Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b68190e51149b6d…

MALICIOUS

PDF

52.4 KB Created: 2020-07-24 12:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d03bfb16fc9c34c2809a1add773d2de SHA-1: f561a9a7d6b719996970ff7cabec59d15fa7c1b2 SHA-256: 2b68190e51149b6da042c188f61762207c559d04a738c17e76efefb290b7836b
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=email+application+template', points to a known malicious redirector. The document body is heavily obfuscated and does not provide clear textual lures, but the presence of the link farm and the malicious redirector strongly suggests a phishing or SEO poisoning attack pattern.

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.com/pify?keyword=email+application+template
    • http://files.cphslab.com/uploads/1/3/1/3/131379532/wopagegidufu_kuxubexatawul_sevawotuwobe_labodojedunop.pdf
    • http://files.labradorpuppyforsale.com/uploads/1/3/0/8/130813132/simitepikuta.pdf
    • http://files.sambeafarm.com/uploads/1/3/2/3/132302928/jefuwa.pdf
    • http://files.noticeandwonder.com/uploads/1/3/1/4/131438891/mifevubudonirijapad.pdf
    • https://cdn.shopify.com/s/files/1/0432/6113/2968/files/betubat.pdf
    • https://cdn.shopify.com/s/files/1/0433/3951/4006/files/12362713836.pdf
    • https://cdn.shopify.com/s/files/1/0432/9170/5502/files/85145193690.pdf
    • https://cdn.shopify.com/s/files/1/0428/2938/1791/files/xekevipaso.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13534048661.pdf
    • https://cdn.shopify.com/s/files/1/0431/5735/6695/files/87294616839.pdf
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/59195701233.pdf
    • https://cdn.shopify.com/s/files/1/0433/9531/7918/files/85273906247.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1796/files/dubuxelatud.pdf
    • https://cdn.shopify.com/s/files/1/0429/4885/3926/files/83415444081.pdf
    • https://cdn.shopify.com/s/files/1/0428/7463/4403/files/24781508801.pdf
    • https://cdn.shopify.com/s/files/1/0432/8616/7702/files/10157966055.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/1/0428/2938/17

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009162.bin
7c6a715b467fcb2ff6f3ee8ef6b1c21eef80a4be79f72c7e7ec832c86ca95786		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9162 4548 bytes
font_01_sfnt_off0000a0ae.bin
15f7e342fecda27579717517ede23e84a4633edfca16765f321687b044ab8ca0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0AE 10544 bytes

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