Malicious PDF — malware analysis report

Static analysis result for SHA-256 59cc7de475c6c97a…

MALICIOUS

PDF

43.0 KB Created: 2020-08-11 21:32:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ff5f83ebb863bab0c352d411429f9d0 SHA-1: 3f2b522be5d538a9b539e093fa9cdd5dd10910e1 SHA-256: 59cc7de475c6c97a10d918909de305b3f853157ac32d2a022fbdf16aad3b1579
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=space+oddity+bass+tab+pdf'. This URL is presented within the document body, disguised as a bass tab PDF. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation or to obscure the malicious redirector. The primary intent appears to be directing users to malicious infrastructure under the guise of providing a PDF document.

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=space+oddity+bass+tab+pdf
    • http://files.anglingoregon.com/uploads/1/3/0/9/130969438/1990622.pdf
    • http://files.leescrossroadmbc.com/uploads/1/3/2/6/132682970/volagikulox.pdf
    • http://zapogugu.denaliandcompany.com/uploads/1/3/1/8/131856161/5676467.pdf
    • http://biwodura.microskytech.com/uploads/1/3/1/6/131636655/2dffaa7d9df40dc.pdf
    • http://files.gillianlakethompson.com/uploads/1/3/1/3/131383510/e7309766.pdf
    • https://cdn.shopify.com/s/files/1/0434/1697/7559/files/54366751196.pdf
    • https://cdn.shopify.com/s/files/1/0439/4926/0968/files/linux_add_text_to_file.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6429/files/anasarca_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0448/6584/7458/files/discrimination_of_albinos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/33435760041.pdf
    • https://cdn.shopify.com/s/files/1/0434/9096/7714/files/bel_ami_maupassant_livre.pdf
    • https://cdn.shopify.com/s/files/1/0428/8928/1692/files/70373330528.pdf
    • https://cdn.shopify.com/s/files/1/0433/4908/2261/files/kobanenel.pdf
    • https://cdn.shopify.com/s/files/1/0434/5341/5576/files/87282503511.pdf
    • https://cdn.shopify.com/s/files/1/0427/4287/4278/files/17808225761.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9639/files/diriwinad.pdf
    • https://cdn.shopify.com/s/files/1/0434/7219/1641/files/78313046501.pdf
    • https://cdn.shopify.com/s/files/1/0435/5214/5560/files/21677405403.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_off000051e6.bin
cccd5f4513721841076b022b73f0c085f80f5a4ed32f019d7d897c6e0cfdabdf
pdf-font-stream PDF embedded font (sfnt) at offset 0x51E6 5048 bytes
font_01_sfnt_off00006312.bin
d82d9e8b66074d8f268e87050551c8da09cbdd0f8e76b127a818fe6f728724e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6312 14592 bytes
font_02_sfnt_off00009103.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9103 4324 bytes