Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ab5fe173f86547…

MALICIOUS

PDF

47.1 KB Created: 2020-08-08 17:29:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffa8b8c8c267dc60795a55750c92b3ab SHA-1: 6a5f37e26c4fe69d168a0fae3ca5c53a1d349896 SHA-256: f6ab5fe173f86547f6d27ce08392e9dcd5d429a2d84d71151e4b3b769b2be47b
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector service. The primary malicious link identified is https://ttraff.ru/pify?keyword=counterfeiting+meaning+pdf, which is likely used to direct users to further malicious content. The document's structure suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites.

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=counterfeiting+meaning+pdf
    • http://files.lmcoaching.co.uk/uploads/1/3/1/6/131636772/99416df58.pdf
    • http://files.pittsburghfisherhouse.org/uploads/1/3/1/4/131438245/2544813.pdf
    • http://files.aurorabookkeeping.com/uploads/1/3/0/8/130815311/9625402.pdf
    • https://cdn.shopify.com/s/files/1/0433/6825/1543/files/59472517309.pdf
    • https://cdn.shopify.com/s/files/1/0441/4518/0824/files/43482534901.pdf
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/xebiboduwuforojugage.pdf
    • https://cdn.shopify.com/s/files/1/0437/3879/2085/files/2006_chrysler_pacifica_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/boise_tv_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0440/7951/3752/files/36567283589.pdf
    • https://cdn.shopify.com/s/files/1/0428/8220/3811/files/zudadudumezasodipurij.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/wonikaraxobanegosapogigel.pdf
    • https://cdn.shopify.com/s/files/1/0431/1865/7703/files/78532081919.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/infeccion_por_acinetobacter_baumannii.pdf
    • https://cdn.shopify.com/s/files/1/0440/6598/0581/files/popirepizasewosibo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1642/1529/files/dubowikekoxovizemu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4183/9511/files/36031827872.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_off0000793b.bin
557400a23a41be64e42cd9ae9a7b94f3a244a9afa5984f6aaa54ca121ca7a19e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x793B 5056 bytes
font_01_sfnt_off00008a57.bin
0b277f02d67ded45496086f36af9f37b697e6d67bda1836880024a566daeed48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A57 10820 bytes

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