Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab3b9e2e02aaec8…

MALICIOUS

PDF

36.6 KB Created: 2020-08-23 11:03:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62333e8c790da90053a6e11a81c6810e SHA-1: e36f1ffcde00a664fce35cdef425a73848a35823 SHA-256: dab3b9e2e02aaec8b32b5e740f102f3c56f6337ca31e1b1f196aa48268249918
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a redirector URL, disguised as a service manual. The primary malicious link, https://ttraff.ru/pify?keyword=2005+nissan+armada+service+manual+pdf, is flagged as malicious. The document body, though heavily obfuscated, contains references to the service manual lure and the malicious URL. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a tactic to obscure the ultimate destination and potentially leverage benign-looking domains for 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.ru/pify?keyword=2005+nissan+armada+service+manual+pdf
    • http://zesak.freeparkingpod.com/uploads/1/3/1/3/131398455/wudawonebogom.pdf
    • http://kuginokan.creativempartners.com/uploads/1/3/1/4/131455069/fd919d57.pdf
    • http://files.stlukelions.org/uploads/1/3/0/7/130776266/2101371.pdf
    • https://cdn.shopify.com/s/files/1/0431/7741/0720/files/lakitiboxidofekonu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6281/3084/files/24946705859.pdf
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/sabawofifuzi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6091/2537/files/rovoma.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78476378890.pdf
    • https://cdn.shopify.com/s/files/1/0434/6845/6086/files/nalid.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/54285857471.pdf
    • https://cdn.shopify.com/s/files/1/0437/7860/5218/files/verizon_free_ringtones._com.pdf
    • https://cdn.shopify.com/s/files/1/0444/2986/9222/files/adobe_indesign_cs6_for_windows.pdf
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/nidedaxojuviziferegixukod.pdf
    • https://cdn.shopify.com/s/files/1/0433/7054/5308/files/bemifafelixaf.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_off00004fb4.bin
5cd247c64061aa75caf9e71fece46280954119b90dbe6500b6456ce09bd157ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FB4 5664 bytes
font_01_sfnt_off000062de.bin
28b75d26f3aac2b479709e3f4a75ef76cba10b6b3f0fa9c2832f326d1ce3070c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62DE 10116 bytes

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