Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd010d8034df2503…

MALICIOUS

PDF

44.6 KB Created: 2020-08-21 14:52:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0a2d39740beba452626ed08b637f2d25 SHA-1: b46bb382951ae135bb2aa1382b3bf24976f032d1 SHA-256: cd010d8034df2503631856e4569619898cc30b960be30d681e7e632fcabf2a28
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a shampoo bula PDF and references the malicious URL. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm used for SEO poisoning or to obscure the final malicious destination.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=shampoo+de+cetoconazol+bula+pdf
    • http://files.transcendmaternalservices.com/uploads/1/3/1/4/131453144/pikozoluxetetirid.pdf
    • http://files.builderandhawk.com/uploads/1/3/1/6/131637148/bopekav.pdf
    • http://files.markfeiler.com/uploads/1/3/1/6/131607005/lifoxezovilibiz-fajom.pdf
    • http://raxisowe.thevegantravels.com/uploads/1/3/1/1/131164250/nezeselabeforapoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/2940/4567/files/dalep.pdf
    • https://cdn.shopify.com/s/files/1/0440/1440/3742/files/9431177614.pdf
    • https://cdn.shopify.com/s/files/1/0429/2296/7207/files/jabra_freeway_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/4114/4483/files/hoover_windtunnel_3_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/fodemasudebakepu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6212/2903/files/21307298762.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3755/files/fenuzuregifelajoporep.pdf
    • https://cdn.shopify.com/s/files/1/0437/5648/6807/files/bowen_mathematics_solution.pdf
    • https://cdn.shopify.com/s/files/1/0428/7974/6207/files/nodelikafemufalul.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_off00006a12.bin
64207c4dda82abb2db07f1b9156f60a4bb3b20c74d002c7e81410f4ced446d7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A12 5416 bytes
font_01_sfnt_off00007c68.bin
5e5355c879e6f841d60c9379a3e0bdc169ed926c0c796a0eff3cf9abfa778286		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C68 12840 bytes

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