Malicious PDF — malware analysis report

Static analysis result for SHA-256 f36500644c04eb4c…

MALICIOUS

PDF

46.3 KB Created: 2020-08-05 11:29:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a41a909b9f9328f5721563154d0ba48 SHA-1: c801b8b327838c43323fe42bff73337a0e7a4eb7 SHA-256: f36500644c04eb4cd17363d13dc5ee8bd3de5f0f15acf72bbc9ae8859560738e
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a tutorial download, which is a common lure for phishing or malware delivery. The PDF also hosts a large number of links, many pointing to Shopify domains, likely as part of an SEO spam campaign to improve search engine ranking for malicious content. The presence of a visual download button further supports the lure. No scripts were extracted, but the primary malicious activity appears to be the redirection to the ttraff.cc domain.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=adobe+xd+web+design+tutorial+pdf
    • http://files.iesagency.com/uploads/1/3/0/7/130738741/4977867.pdf
    • http://files.hondurasmissions.org/uploads/1/3/2/7/132740978/wimul_xoxasazaw_sawagukalugipar_sopemulori.pdf
    • http://fofese.dreamility.com/uploads/1/3/0/7/130776485/voginebepazuwiwale.pdf
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/rikeg.pdf
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/78543577491.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4555/files/94885699418.pdf
    • https://cdn.shopify.com/s/files/1/0428/4999/2870/files/quotation_marks_symbol.pdf
    • https://cdn.shopify.com/s/files/1/0436/2282/6142/files/96301143401.pdf
    • https://cdn.shopify.com/s/files/1/0431/0066/8065/files/fumirulejurar.pdf
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/16033945703.pdf
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/82726791856.pdf
    • https://cdn.shopify.com/s/files/1/0428/7063/6710/files/81753750679.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/86181160419.pdf
    • https://cdn.shopify.com/s/files/1/0428/9419/6902/files/40577030184.pdf
    • https://cdn.shopify.com/s/files/1/0431/1423/4016/files/71138499556.pdf
    • https://cdn.shopify.com/s/files/1/0433/3853/0965/files/71068039626.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_off000075c7.bin
4096fbffd8477a2f86ad8e4f176fd0c7fd789a5a7bea1f194bd2f3310d7940ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x75C7 5496 bytes
font_01_sfnt_off0000889a.bin
e0d65377e9ecd352036b4b750a6f8be24a3ea6c8a334e975089a3812c7aec7af
pdf-font-stream PDF embedded font (sfnt) at offset 0x889A 10540 bytes