Malicious PDF — malware analysis report

Static analysis result for SHA-256 dddc9cc93b388e7b…

MALICIOUS

PDF

144.4 KB Created: 2020-08-07 02:11:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 038f971247677b059859e0d73800dfe1 SHA-1: 1d9cf8b879429a52f260d4dea581d88bfc97a7c9 SHA-256: dddc9cc93b388e7b56a7764c444116177b6cf0d6a5ea72878842f803b8d29846
136 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector link pointing to malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=carillion+collapse+pdf', which is flagged as a malicious redirector. The presence of numerous PDF links, many hosted on Shopify, suggests an attempt to obscure the final malicious destination. The heuristics indicate a lure related to invoices or urgency, combined with a malicious redirector.

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=carillion+collapse+pdf
    • http://wunada.untoldtales.net/uploads/1/3/1/4/131453674/3507033.pdf
    • http://files.scenichillvacations.com/uploads/1/3/1/6/131636946/6173456.pdf
    • http://files.garden-of-luminaria.com/uploads/1/3/1/4/131453248/gazusuwa.pdf
    • http://files.strivetothrivewellness.com/uploads/1/3/2/8/132814306/7171617.pdf
    • https://cdn.shopify.com/s/files/1/0434/9706/2564/files/kumogabusejewidubalaxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6538/4866/files/naxesuvegatekinu.pdf
    • https://cdn.shopify.com/s/files/1/0429/5727/5299/files/49449210111.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9880/files/pepodomuxakulonidukonik.pdf
    • https://cdn.shopify.com/s/files/1/0432/4252/0739/files/woximifadojelozidefewanaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95909873105.pdf
    • https://cdn.shopify.com/s/files/1/0433/4603/4853/files/bipixaperilavixezopilivag.pdf
    • https://cdn.shopify.com/s/files/1/0430/7389/6602/files/gorillaz_kids_with_guns.pdf
    • https://cdn.shopify.com/s/files/1/0431/1459/4466/files/53947062245.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/kibedalida.pdf
    • https://cdn.shopify.com/s/files/1/0427/5548/9948/files/1631492087.pdf
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/20411142182.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_off0001fca1.bin
025457659a9fef696b2c2f582308d50df7835f31d26e2e83d2a7b26b9397d185
pdf-font-stream PDF embedded font (sfnt) at offset 0x1FCA1 5052 bytes
font_01_sfnt_off00020ddb.bin
19deb9baeb9c6a3c850d5e60d13292b1b2670505b7201fa6e5ba88b4d95d4bb9
pdf-font-stream PDF embedded font (sfnt) at offset 0x20DDB 11404 bytes