Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9a1325bf5a909c7…

MALICIOUS

PDF

50.2 KB Created: 2020-07-30 03:11:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 676690ca25c87598fedf9f4c14691a7d SHA-1: 0d416c75636545c2a76e3d9c6872289cb71f6ad1 SHA-256: e9a1325bf5a909c7c942c8a2a686a861e196c2fe883eab8e15a0181b130c627d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=cadena+de+valor+de+una+empresa+industrial+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with 'https://cdn.shopify.com/s/files/1/0431/0745/1041/files/2605026615.pdf' being a prominent example. The document body, though heavily obfuscated, suggests a lure related to 'Cadena de valor de una empresa industrial pdf'. The combination of these factors indicates a phishing attempt designed to redirect users 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.com/pify?keyword=cadena+de+valor+de+una+empresa+industrial+pdf
    • http://files.tonystockmansart.com/uploads/1/3/0/7/130775282/molujutufavuf-lamoj.pdf
    • http://files.michellefairley77.com/uploads/1/3/0/8/130873979/narop_vumuxilefino_vekug.pdf
    • http://files.thewaitingroomlostandfound.org/uploads/1/3/2/7/132712282/gapibolare.pdf
    • http://actualidadempresa.com/cadena-de-valor-y-sus-aplicaciones/
    • https://cdn.shopify.com/s/files/1/0431/0745/1041/files/2605026615.pdf
    • https://cdn.shopify.com/s/files/1/0431/0879/4525/files/sigufowiduwodika.pdf
    • https://cdn.shopify.com/s/files/1/0431/3828/5734/files/61052249331.pdf
    • https://cdn.shopify.com/s/files/1/0433/4367/5560/files/maduwudurozapesijugutim.pdf
    • https://cdn.shopify.com/s/files/1/0435/6990/5825/files/weroxibakafogupuzati.pdf
    • https://cdn.shopify.com/s/files/1/0435/3179/6632/files/57422296107.pdf
    • https://cdn.shopify.com/s/files/1/0431/9117/3278/files/42975619957.pdf
    • https://cdn.shopify.com/s/files/1/0430/8015/5290/files/33064475244.pdf
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/63436986644.pdf
    • https://cdn.shopify.com/s/files/1/0431/9464/6689/files/80924485823.pdf
    • https://cdn.shopify.com/s/files/1/0438/5246/4293/files/98902945624.pdf
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/69494549568.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_off000085eb.bin
a4e70dc77fe52afedfd563f0214d9b2ca63433044794a470cf21caa70979495a
pdf-font-stream PDF embedded font (sfnt) at offset 0x85EB 5152 bytes
font_01_sfnt_off00009760.bin
2c689a6e4d1bf47ffbb8625b5363a018e6bb719c6e4e877c5976310249e1a71e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9760 10376 bytes