Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9d4fd5657df65eb…

MALICIOUS

PDF

44.8 KB Created: 2020-08-16 10:55:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 929d758e18b47f944c39ff79350b6960 SHA-1: 1bb9a8ae2ba5ea6e1fde2be754e8aad709040e92 SHA-256: e9d4fd5657df65ebb2edbe2fa7154623ef25a41e5f5d90c0b93202ad744067f8
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to Excel VBA, and a call-to-action phrase was detected. The presence of a malicious redirector and a link farm suggests an attempt to drive traffic to potentially harmful sites, possibly for phishing or malware distribution.

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.
  • 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=merge+multiple+sheets+excel+vba
    • http://files.mariannemcshane.com/uploads/1/3/1/8/131856134/dexuxakox_zonopelusibereb.pdf
    • http://kebalopu.foxxpoolsbycburger.com/uploads/1/3/0/9/130968988/ba552fa95bce.pdf
    • https://cdn.shopify.com/s/files/1/0435/8655/1971/files/zugerobuxesewuwuwid.pdf
    • https://cdn.shopify.com/s/files/1/0433/1608/4891/files/sedanepozaraven.pdf
    • https://cdn.shopify.com/s/files/1/0435/3146/8951/files/24294002125.pdf
    • https://cdn.shopify.com/s/files/1/0434/0976/8604/files/javascript_count_down_clock.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/kanban_retrospective_template.pdf
    • https://cdn.shopify.com/s/files/1/0429/2296/7206/files/49450284066.pdf
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/41754195422.pdf
    • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/rurifutukojode.pdf
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/7995674998.pdf
    • https://cdn.shopify.com/s/files/1/0429/9482/7415/files/simlab_3d_exporter_for_autocad_crack.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/3122934735.pdf
    • https://cdn.shopify.com/s/files/1/0432/9766/9278/files/vuvububa.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_off00007068.bin
072a431b8f78b695269b2a005518b0801a7eda2d9768765e569ba1ae538472ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7068 5620 bytes
font_01_sfnt_off0000836f.bin
1322b6965d381f88684eaf4388cc642f1a84900a1ac487f92d69ba390962521c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x836F 10428 bytes

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