Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4a95e201c63b86b…

MALICIOUS

PDF

50.1 KB Created: 2020-08-03 03:36:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bb47f0ea39a86bb18d4fd4c4840ff0d SHA-1: e392b24cf0b93f84ab5e7d0290ffbfa43ecaad79 SHA-256: d4a95e201c63b86bd1c4ee8fa57080ee21ac0259675df86ae57da05528a4bbee
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure via the URL https://ttraff.cc/pify?keyword=converting+eu+to+rf. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution.

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=converting+eu+to+rf
    • http://lakore.okto8online.com/uploads/1/3/1/4/131407818/sizozalosex-mafaxewuwip-gonapogurige-pitutep.pdf
    • http://files.hempsteadxc.com/uploads/1/3/0/7/130739628/demojuvesogiwutife.pdf
    • http://files.darkgra.org/uploads/1/3/2/7/132712235/navasularutuv-zozilotelinuje.pdf
    • http://files.bellsandpeppers.com/uploads/1/3/2/6/132681602/7168086.pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/suvowobalijol.pdf
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/what_is_a_discord_webhook.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/podotuvizewabofodo.pdf
    • https://cdn.shopify.com/s/files/1/0428/3065/9750/files/fuvavutukikaduzirus.pdf
    • https://cdn.shopify.com/s/files/1/0432/9802/9733/files/9360554493.pdf
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/29972612279.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1030/files/latulojomozobox.pdf
    • https://cdn.shopify.com/s/files/1/0428/9508/1635/files/rijirobafarewi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/zomozaramitadiganimed.pdf
    • https://cdn.shopify.com/s/files/1/0433/4852/5208/files/24113713229.pdf
    • https://cdn.shopify.com/s/files/1/0431/0509/1745/files/24417321964.pdf
    • https://cdn.shopify.com/s/files/1/0432/8452/9310/files/75802156398.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/fikajutavulelegig.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_off0000837e.bin
bd0e2584ee4da51848292a79c3d9bbbde0c692e48256c396f1023841611ed628		 pdf-font-stream PDF embedded font (sfnt) at offset 0x837E 4480 bytes
font_01_sfnt_off000092db.bin
243e4fdc5edafe2c2366fc511a14aadafb3088baf5ca491a506c2b0125037953		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92DB 12700 bytes

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