Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2fe1a4ad4e6606c…

MALICIOUS

PDF

47.3 KB Created: 2020-08-07 23:20:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d8871cbc4b1af16efc1d7ef5cbe5161f SHA-1: fe82269891216c2d36776383f3023d806a5cefe4 SHA-256: c2fe1a4ad4e6606c5c7fb764e179edc643341cdb130ea2fda505c868032e99d1
168 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. Additionally, it exhibits a high-signal heuristic for a payment redirection lure, suggesting a business-email-compromise pattern. The document body, though heavily obfuscated, contains the same redirector URL. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to improve search engine ranking for malicious content.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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=segment+routing+part+ii+pdf+download
    • http://files.tomfoolerytoys.com/uploads/1/3/1/4/131438177/lelakuxepude-dipuderova-pezita-pedadiw.pdf
    • http://files.athospress.com/uploads/1/3/1/1/131164424/zojevutofe.pdf
    • http://zavap.ironmountainarts.org/uploads/1/3/1/4/131406082/6116609.pdf
    • https://cdn.shopify.com/s/files/1/0430/7596/0985/files/jutemodulivekadatobepisal.pdf
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/bench_work_hand_tools.pdf
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/rizat.pdf
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/relilasokivamizorosub.pdf
    • https://cdn.shopify.com/s/files/1/0438/6773/4171/files/husqvarna_drt900h_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/9085/3531/files/vatiwanofoguxo.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/33215682535.pdf
    • https://cdn.shopify.com/s/files/1/0430/9634/2695/files/46972283885.pdf
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/48122833497.pdf
    • https://cdn.shopify.com/s/files/1/0440/5002/2550/files/65199621755.pdf
    • https://cdn.shopify.com/s/files/1/0431/5181/8918/files/discrete_dynamical_systems.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_off00007b3a.bin
764dd3ccff5bc90a1eb961f61b2ff9fc1886070bb66e94198129efccdb873e5e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3A 5376 bytes
font_01_sfnt_off00008d81.bin
6428d86220a1d60115532e78883f6d8f230fad1612e15d7fe3c8b3fec4c7c87c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D81 10236 bytes