Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afca7e09c256814…

MALICIOUS

PDF

44.9 KB Created: 2020-08-03 08:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a9688d37023283787a7fdc501a82e3d SHA-1: 8f372ab8265a657384273b88e6172153c1fa5f33 SHA-256: 4afca7e09c2568140f9dbd87d67bca5defd7b5a364a86d770eabf056bc471dc0
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary malicious link, 'https://ttraff.cc/pify?keyword=fetty+wap+boomin+mp3', is flagged as a known malicious redirector. This suggests the document's purpose is to lure users into clicking these links, likely leading to phishing pages or malware downloads.

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=fetty+wap+boomin+mp3
    • http://files.karolynecronin.com/uploads/1/3/0/8/130874422/tavuxerenu_rexavanu_pemeg.pdf
    • http://files.hagmian.com/uploads/1/3/1/4/131483266/loxatabezog-xuvilogekewigi-gozonozunu-lilop.pdf
    • http://files.atlanticharmonybrigade.com/uploads/1/3/1/6/131637240/jupolusig-masoviruvixofu.pdf
    • http://files.fourdaysinchicago.com/uploads/1/3/0/9/130969993/gavuw.pdf
    • http://files.arabellasheen.co.uk/uploads/1/3/1/3/131383934/1121662.pdf
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/8775320406.pdf
    • https://cdn.shopify.com/s/files/1/0431/7170/9092/files/daleragejejifapak.pdf
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/68658031046.pdf
    • https://cdn.shopify.com/s/files/1/0438/4954/7936/files/xizuwitubopubabanu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/vegexakadiwugozim.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/5822877708.pdf
    • https://cdn.shopify.com/s/files/1/0438/5266/0901/files/parabolic_curve_in_r.pdf
    • https://cdn.shopify.com/s/files/1/0429/6281/3084/files/2826605951.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/giratajolexodomofavewolov.pdf
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/rinet.pdf
    • https://cdn.shopify.com/s/files/1/0431/8344/0036/files/kelupafalifaben.pdf
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/14151658582.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pujar.pdf
    • https://cdn.shopify.com/s/files/1/0429/5272/0543/files/series_7_exam_study_guide.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_off00007353.bin
10318b5ca03852f531a9604395f098558869caad43e7f617337d4aba9a7c4bdc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7353 5112 bytes
font_01_sfnt_off000084c4.bin
c8a889a3c282ae3c48f04879a7da537eba69152796cbb9d4e0802e905e33d41b
pdf-font-stream PDF embedded font (sfnt) at offset 0x84C4 9920 bytes