Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca5794d8f9a16e53…

MALICIOUS

PDF

45.8 KB Created: 2020-08-09 05:34:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6742a34fc0ae2e25576786433221c85e SHA-1: 102c352dd914719b98625892ac0df240ec80fbf0 SHA-256: ca5794d8f9a16e53cde57edb2a11d9338892d5db59c9de68106e58114376a499
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=alternatives+%25C3%25A9conomiques+hors+s%25C3%25A9rie+pdf', likely leads to a malicious site. The document also exhibits characteristics of a link farm, with numerous external PDF links, many pointing to Shopify domains, suggesting an attempt to manipulate search engine results or distribute content broadly. No scripts were extracted from this sample.

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=alternatives+%25C3%25A9conomiques+hors+s%25C3%25A9rie+pdf
    • http://files.advancedenergywork.com/uploads/1/3/1/3/131381078/gawafebisosop_vowofi_fifob_vifuruxafak.pdf
    • http://files.2waytomobile.com/uploads/1/3/1/3/131380482/1735186.pdf
    • http://files.hollyvision.biz/uploads/1/3/1/4/131453934/fazexuwete.pdf
    • http://files.anjelicacolliard.com/uploads/1/3/0/7/130740483/vipijabofipop.pdf
    • https://cdn.shopify.com/s/files/1/0434/1379/9066/files/24952675330.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3429/files/25078126372.pdf
    • https://cdn.shopify.com/s/files/1/0428/4717/4812/files/94632386761.pdf
    • https://cdn.shopify.com/s/files/1/0431/6417/2445/files/6556035601.pdf
    • https://cdn.shopify.com/s/files/1/0434/8729/7696/files/velujijezugefitimixolu.pdf
    • https://cdn.shopify.com/s/files/1/0440/4061/8134/files/riwosagud.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/67087595441.pdf
    • https://cdn.shopify.com/s/files/1/0437/7464/0286/files/vewidenemamenukitag.pdf
    • https://cdn.shopify.com/s/files/1/0434/1547/0245/files/6851260204.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/tevafosovukotana.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/naruto_on_crack.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_off00006d95.bin
34f7dad258cbc5cb714139321b3d0785b4bd6b4d61d91756552747a39f296b53
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D95 5712 bytes
font_01_sfnt_off00008098.bin
7d4a7e352505f727ec4bd34cfbda7362579457897c696d4057f0ee68ec2a8598
pdf-font-stream PDF embedded font (sfnt) at offset 0x8098 12568 bytes