Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7ad6f9e7f59e270…

MALICIOUS

PDF

66.0 KB Created: 2020-08-18 14:00:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9f3c2b8f8da52ecf29b040164db4e2b SHA-1: d4e6fc3359b6f668d0e7ffb2bda15dfa4283ede7 SHA-256: f7ad6f9e7f59e27075f62853596f8b8cbb47b0fbb8fd53efd1afc762cc4c8941
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a link farm or SEO poisoning tactic designed to funnel users to malicious content. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. No scripts were extracted from this sample.

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.com/pify?keyword=company+of+heroes+2+usf+guide
    • http://files.camaschurch.net/uploads/1/3/2/7/132740982/joburasixifiz.pdf
    • http://files.daleismopeners.com/uploads/1/3/2/3/132303238/7029277.pdf
    • http://files.goddessofnature.org/uploads/1/3/0/8/130813526/770661.pdf
    • https://cdn.shopify.com/s/files/1/0435/8311/1336/files/castrol_edge_0w_40_a3_b4.pdf
    • https://cdn.shopify.com/s/files/1/0433/4911/5029/files/dibujarte_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0430/0842/6147/files/wiwutubirajakunaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/9795/6258/files/jijavunamevijureludovoti.pdf
    • https://cdn.shopify.com/s/files/1/0434/7019/2802/files/puwebupekizekesizanexotil.pdf
    • https://cdn.shopify.com/s/files/1/0433/2270/4030/files/37693014018.pdf
    • https://cdn.shopify.com/s/files/1/0438/6865/1680/files/24576420089.pdf
    • https://cdn.shopify.com/s/files/1/0437/3676/0485/files/cheque_deposit_letter_format.pdf
    • https://cdn.shopify.com/s/files/1/0428/7938/5756/files/14457563615.pdf
    • https://cdn.shopify.com/s/files/1/0431/6092/8405/files/zuxepolebupa.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/vafirev.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7352/files/refepekobimodigudugaxo.pdf
    • https://cdn.shopify.com/s/files/1/0437/3754/6917/files/46107682155.pdf
    • https://cdn.shopify.com/s/files/1/0431/4634/6658/files/93832798005.pdf
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/jeliworib.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b7d7.bin
d639f267182b8b887469e186d42c3027c0e367e4b45b508763aa59dd5c6657f8
pdf-font-stream PDF embedded font (sfnt) at offset 0xB7D7 5480 bytes
font_01_sfnt_off0000ca4b.bin
3a7d12824f3eadfaaa3a8298b6d03e908b2cf1899f7a257c18657c723ca9578f
pdf-font-stream PDF embedded font (sfnt) at offset 0xCA4B 10060 bytes
font_02_sfnt_off0000ecbd.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xECBD 4324 bytes