Malicious PDF — malware analysis report

Static analysis result for SHA-256 b93fa94e38ee5ec2…

MALICIOUS

PDF

41.9 KB Created: 2020-08-10 20:55:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8209d1818ddbd2654d1af88288ea9bfc SHA-1: 47562b7308334595cd1a2134c18e9404e9902105 SHA-256: b93fa94e38ee5ec294e89f55b21cefb21b54afbd663a5870a5714d8ed61b7443
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF also functions as a link farm, as indicated by the PDF_SEO_LINK_FARM heuristic, with numerous links pointing to external PDFs. The embedded URL in the document body, 'https://ttraff.cc/pify?keyword=michigan+and+ohio+state+behavioral+theories+of+leadership+pdf', is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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=michigan+and+ohio+state+behavioral+theories+of+leadership+pdf
    • http://files.gassafecertificatesplus.com/uploads/1/3/0/7/130775084/a380bc004960ca6.pdf
    • http://volijok.amyhahne.com/uploads/1/3/1/6/131636655/gumet.pdf
    • http://files.lofasothebosso.com/uploads/1/3/2/7/132740424/batikemeduka-zoxivatopugux.pdf
    • http://files.sherieunfiltered.com/uploads/1/3/2/8/132815961/a59b4b501cc8.pdf
    • http://zekinila.dudleysafes.com/uploads/1/3/1/3/131380005/25c8baad520.pdf
    • https://cdn.shopify.com/s/files/1/0439/2534/0328/files/zozumelepibozigeduv.pdf
    • https://cdn.shopify.com/s/files/1/0434/4505/9749/files/xidiruvex.pdf
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/kusaxasamotesigoguburiruw.pdf
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/31228883287.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/waduduna.pdf
    • https://cdn.shopify.com/s/files/1/0434/7510/7990/files/vibebivejiwogajopogu.pdf
    • https://cdn.shopify.com/s/files/1/0454/6029/1742/files/fusionner_un_fichier.pdf
    • https://cdn.shopify.com/s/files/1/0434/9824/2214/files/ancestor_worship_and_korean_society.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/wowiwupivogulivip.pdf
    • https://cdn.shopify.com/s/files/1/0430/0180/6997/files/83332938328.pdf
    • https://cdn.shopify.com/s/files/1/0434/1121/0398/files/87906048562.pdf
    • https://cdn.shopify.com/s/files/1/0433/8489/7701/files/1024117074.pdf
    • https://cdn.shopify.com/s/files/1/0434/6534/3138/files/losib.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_off0000661a.bin
15db8a48222df901fd60c3900259c1c5e9d00fb82af3a9568e11c904097c3b99
pdf-font-stream PDF embedded font (sfnt) at offset 0x661A 5624 bytes
font_01_sfnt_off00007939.bin
7d7de760eba7b1ffe9c489a46f6235acc327de38151543d741fee95e564f05c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7939 9664 bytes