Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c6e27eff1623813…

MALICIOUS

PDF

45.1 KB Created: 2020-08-11 17:32:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7cbaf9e8539067951e6c7460a3e0e4e SHA-1: 64d3acc87dc566921130dafcef786d5786c3e79d SHA-256: 3c6e27eff1623813fdf75061363429290ca456b81b25b7b45451d83a49008d97
140 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that matches this redirector. The presence of a link farm and a callback lure suggests a phishing or scam attempt. The primary malicious link identified is https://ttraff.com/pify?keyword=bartok+mikrokosmos+5+pdf.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=bartok+mikrokosmos+5+pdf
    • http://xivuzuw.westfieldkitchentour.com/uploads/1/3/0/8/130813765/5867952.pdf
    • http://files.rebeccalindell.com/uploads/1/3/1/4/131407802/rolelezosubaz-nenega-bekumofugeraze.pdf
    • http://dovamip.modicash.nl/uploads/1/3/1/1/131163667/e41ae911a30d.pdf
    • https://cdn.shopify.com/s/files/1/0431/9500/7137/files/jomowemenexo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/sodobabaginanurexixo.pdf
    • https://cdn.shopify.com/s/files/1/0435/0800/7072/files/62899829069.pdf
    • https://cdn.shopify.com/s/files/1/0431/4277/4938/files/bonaventure_cemetery_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/tagisanemadexi.pdf
    • https://cdn.shopify.com/s/files/1/0428/8076/2023/files/gitemiviligikupose.pdf
    • https://cdn.shopify.com/s/files/1/0437/4659/0872/files/schwartz_absite_review.pdf
    • https://cdn.shopify.com/s/files/1/0429/9200/9365/files/39494293944.pdf
    • https://cdn.shopify.com/s/files/1/0437/2496/3990/files/calendario_2020_ottobre.pdf
    • https://cdn.shopify.com/s/files/1/0431/7478/9281/files/32084602486.pdf
    • https://cdn.shopify.com/s/files/1/0432/2122/1539/files/algebra_1_graphing_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/59313535394.pdf
    • https://cdn.shopify.com/s/files/1/0443/9313/6294/files/wavelet_neural_network.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/
    • https://cdn.shopify.com/s/file

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d77.bin
33aabd9acb3d4bd4cccf75b2be95e3213d8e9794a5dd716353f18a170c122e1f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D77 5392 bytes
font_01_sfnt_off00006fb9.bin
0fe9d17817def5f38b8a81c3eb6716d8a933c634ef5559735990579f24fe3f86
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB9 9876 bytes
font_02_sfnt_off000091c9.bin
fb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x91C9 16120 bytes