Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaced639478536ff…

MALICIOUS

PDF

41.0 KB Created: 2020-08-17 05:57:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fc6f7e503faeb1e861f01c46b8a7ea50 SHA-1: cd42f67c1fdf980b57a71f87c4d7faf2593a81e2 SHA-256: aaced639478536ffaf41825925fa007d3576c06966dfac2b586497531bdede25
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'maintenance checklist form template' and embeds numerous links. One of these links, 'https://ttraff.cc/pify?keyword=maintenance+checklist+form+template', is identified as a malicious redirector. The document's structure and embedded links suggest a phishing or social engineering attack aimed at directing users to malicious content.

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.cc/pify?keyword=maintenance+checklist+form+template
    • http://gurune.moodyplumbinginc.com/uploads/1/3/0/7/130738950/ruxetabume.pdf
    • http://vajeroja.myportlandtherapist.com/uploads/1/3/1/4/131407178/pafaduleda.pdf
    • https://cdn.shopify.com/s/files/1/0431/7878/6965/files/91360866746.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdf
    • https://cdn.shopify.com/s/files/1/0430/6577/0133/files/51031747140.pdf
    • https://cdn.shopify.com/s/files/1/0439/2216/1832/files/cours_de_l_argumentation.pdf
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/pazivoki.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/how_to_check_if_id_is_uuid.pdf
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/23754823386.pdf
    • https://cdn.shopify.com/s/files/1/0432/0228/1633/files/28488966936.pdf
    • https://cdn.shopify.com/s/files/1/0438/4446/8901/files/vagukixi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7052/9436/files/bakogejajori.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_off00006319.bin
6aaca15701fc9b8bb24271278f03fdf6ceb25b2a8bc6280ecdecc5a6b42a787c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6319 5324 bytes
font_01_sfnt_off0000750c.bin
8e80973307df88ee27e944aeac3fe3c46b353a9ede20429cccf3e913274d96f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x750C 10116 bytes

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