Malicious PDF — malware analysis report

Static analysis result for SHA-256 59c737d0982fda0c…

MALICIOUS

PDF

44.8 KB Created: 2020-08-22 04:56:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42cd2a127d614bbde004db08db1536c6 SHA-1: 680712068a5829a87b097605e9a02d32ff97ad7e SHA-256: 59c737d0982fda0cdf556d68600341cb717ae6227967937554c0d97c8b7359d8
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that leads to a link farm, likely for SEO manipulation or to obscure the final destination. The document body, though heavily corrupted, contains the same malicious URL and references sheet music, suggesting a lure. The presence of multiple embedded PDFs hosted on Shopify further supports the link farm heuristic. No scripts were extracted from this sample, limiting the analysis of its direct execution behavior.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.ru/pify?keyword=bach+brandenburg+concerto+5+violin+sheet+music
    • http://files.barbadosopenwaterfestival.com/uploads/1/3/0/7/130775115/ed715baf2.pdf
    • http://files.architexturedance.org/uploads/1/3/1/3/131380626/1645953.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/degotumikotimimena.pdf
    • https://cdn.shopify.com/s/files/1/0432/4252/0739/files/zupizolizomupiwobutakosi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4742/0066/files/72521738083.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/beautician_uniform_black.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/17705061883.pdf
    • https://cdn.shopify.com/s/files/1/0434/9440/8354/files/autocad_tutorial_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0459/2467/9829/files/81729025236.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/vixoziworakukuxos.pdf
    • https://cdn.shopify.com/s/files/1/0428/5353/1807/files/45467043452.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/passport_application_forms_uganda.pdf
    • https://cdn.shopify.com/s/files/1/0434/9214/7366/files/canciones_para_guitarra_en.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f30.bin
0bdc08687536c4ba4fa5e7f63230525835c1f83e59e8d6bf27d1e1cc963a8a0e
pdf-font-stream PDF embedded font (sfnt) at offset 0x4F30 5728 bytes
font_01_sfnt_off0000627e.bin
e745cce7314f750046998af004fecd6a123a5fbbaded7f985ee1a2ff572d7d46
pdf-font-stream PDF embedded font (sfnt) at offset 0x627E 2060 bytes
font_02_sfnt_off00006c26.bin
9546ad1a322d3288db184bc55971121f1e77cc7226ed33f72428d76dbfadf11d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C26 10080 bytes
font_03_sfnt_off00008ee5.bin
e2237bcfba2ad8a8c6238a86fe0fbf220db2b991d1f402b1dc0856d9f6c5f988
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EE5 16076 bytes