Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6c04f95f06b0ae3…

MALICIOUS

PDF

49.2 KB Created: 2020-08-13 04:14:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96a0799a340e0a0320f363b671d6d423 SHA-1: e5ab433365be62dc8857c4c9488f849b1966ff0c SHA-256: a6c04f95f06b0ae3bf43189c2608122b35958a030bf6eed9bdb13ceb91c7c406
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. The document body also contains this URL and numerous other links hosted on cdn.shopify.com, indicating a link farm designed to lure users. The primary attack pattern involves redirecting users to malicious infrastructure via embedded links.

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/wb?keyword=numerically%20controlled%20oscillator%20pdf
    • http://ravagip.spencerkezhouxiao.com/uploads/1/3/1/4/131407241/bilexunanusemif_rejefiw.pdf
    • http://files.harrisburgvictimhelp.org/uploads/1/3/0/8/130813416/9668581.pdf
    • http://files.redhillfarmhorses.com/uploads/1/3/0/8/130814774/a1e3a3462626424.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36920421444.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/rafiwovoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/7754/9728/files/vedenuwukuxuxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/1382/3909/files/vevaguzageked.pdf
    • https://cdn.shopify.com/s/files/1/0437/8358/5949/files/aterosclerosis_y_arteriosclerosis.pdf
    • https://cdn.shopify.com/s/files/1/0440/1935/1710/files/88431607235.pdf
    • https://cdn.shopify.com/s/files/1/0429/6946/4991/files/jolovopezijenotapoxokal.pdf
    • https://cdn.shopify.com/s/files/1/0436/8603/5621/files/kazate.pdf
    • https://cdn.shopify.com/s/files/1/0430/5374/4279/files/kopifadapotejuseluxujimi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55628578329.pdf
    • https://cdn.shopify.com/s/files/1/0440/9910/9016/files/92588467603.pdf
    • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/megufakefuzupulijofaron.pdf
    • https://cdn.shopify.com/s/files/1/0429/3863/0300/files/2010_glk_350_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/0331/3308/files/16341174239.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_off000082c2.bin
e6542ebea93f92b005e4ae5d3539b2f0cbf7bca7660cee65a6408544257cc73d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82C2 5372 bytes
font_01_sfnt_off000094f9.bin
1d4c3bc178a43045a3c3ddb40f5c0ba770eaceaff9f8ff9ece91942d2f12943a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94F9 10060 bytes

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