Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe3aa45db5589e3b…

MALICIOUS

PDF

41.1 KB Created: 2020-08-18 14:46:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea518133c5d8321ca28d477735b08244 SHA-1: 8955ad530e5a5f0d8974cd9b6d8c8112219a3ca2 SHA-256: fe3aa45db5589e3b8b76aa8cbc9d5af5f05d5facfa944e41733877ad36773d8e
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is flagged as malicious. It also includes a large number of external PDF links, suggesting a link farm for SEO manipulation or to obscure the malicious redirect. The document body contains text related to 'Google excel sheet free', indicating a lure to entice users to click the malicious link. The presence of a malicious redirector and the lure suggest this document is designed to lead users to a phishing or malware-hosting site.

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.
  • 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.com/pify?keyword=google+excel+sheet+free
    • http://files.whatareyoupracticing.org/uploads/1/3/0/8/130873822/livufimev.pdf
    • http://files.henrytyrrell.co.uk/uploads/1/3/2/6/132680852/fuseduwu_piwerisowewosi.pdf
    • http://jofejol.croberts100.com/uploads/1/3/1/8/131857114/rubelumeb.pdf
    • http://files.portagecentralexams.com/uploads/1/3/0/9/130970022/tofujudinaf.pdf
    • https://cdn.shopify.com/s/files/1/0427/5198/3772/files/72380768458.pdf
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/6038871107.pdf
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/93139437126.pdf
    • https://cdn.shopify.com/s/files/1/0437/0143/6566/files/lirubutifeleb.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/watch_american_reunion_free_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/logopazunu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9903/8631/files/tinujunopalefilarizul.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/8763637694.pdf
    • https://cdn.shopify.com/s/files/1/0432/3078/9800/files/47692156597.pdf
    • https://cdn.shopify.com/s/files/1/0432/2836/4968/files/asrs_employer_manual.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_off00006458.bin
fb19bdbd2fee73b156b7384d5306877d989c63e489b4f252538c3e61150d681f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6458 5032 bytes
font_01_sfnt_off00007585.bin
dd944e40c87eeb2c3b247fc7271ce933eaba82691dbf9d38f948df15e43b4222
pdf-font-stream PDF embedded font (sfnt) at offset 0x7585 10048 bytes