Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9e3fae4b433e826…

MALICIOUS

PDF

39.4 KB Created: 2020-08-24 05:33:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 203f4c57325b1e5565f7799b912376da SHA-1: 510b5cae64178dbbf1ab6fbde89926a0dce073a8 SHA-256: b9e3fae4b433e826e916697a138e81a6ecfc38387994874e5a9cc7010257c70e
130 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraffic.cc, which is likely used to deliver further malicious content. The document body and heuristics indicate a lure related to invoices or payments, suggesting a phishing attempt. The presence of a link farm further supports the malicious intent of distributing harmful 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=tcode+for+ar+aging+report+in+sap
    • http://files.sangeeskitchen.myworldrules.com/uploads/1/3/1/1/131163723/lidozesirelaninuve.pdf
    • http://files.rhbc29130.org/uploads/1/3/0/8/130874324/2868891b00fd.pdf
    • http://files.hungryhawaiian.net/uploads/1/3/0/7/130776326/6531294.pdf
    • http://files.soakitupfranklinma.org/uploads/1/3/0/8/130814124/waninalusomegus_nidesabozibired_zobewufos.pdf
    • https://cdn.shopify.com/s/files/1/0440/7872/7318/files/pdf_a_dwg_di_cadsofttools.pdf
    • https://cdn.shopify.com/s/files/1/0439/2668/3816/files/mukikenuvijofalirogogavux.pdf
    • https://cdn.shopify.com/s/files/1/0428/7456/8860/files/doxibasijiwujanokevuvow.pdf
    • https://cdn.shopify.com/s/files/1/0435/0964/5478/files/67138771039.pdf
    • https://cdn.shopify.com/s/files/1/0436/2492/3298/files/8409150452.pdf
    • https://cdn.shopify.com/s/files/1/0432/3137/9618/files/22750695796.pdf
    • https://cdn.shopify.com/s/files/1/0438/3621/1362/files/cbse_class_3_maths_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1799/files/wpf_combobox_control_template.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_off00005ce8.bin
d6d620b31d92ac18323686655915aaf766539d4597bc5e0b375a6155a9792587		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE8 5240 bytes
font_01_sfnt_off00006ec0.bin
dc2f03749c59aaeb545c2c84b395a30325e1b89d8147f32943ad162ee50cf887		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC0 10084 bytes

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