Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1f40c56f996d85f…

MALICIOUS

PDF

32.7 KB Created: 2020-09-20 00:48:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f471425f6ca49d8182a5790f804245c SHA-1: 9aa1a1ba57c5c3f63b0bd169af992241cb2fede8 SHA-256: d1f40c56f996d85fe4844dbc6aac60c783b6b6b40eb2a2e39a455d7a2fc5cf38
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=hello+my+name+is+template+illustrator'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on platforms like Shopify. The document body, though heavily obfuscated, contains the same malicious URL and other benign-looking URLs, suggesting a lure to a malicious site. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link embedded within the PDF.

Heuristics 3

  • 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.
  • 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.me/wix?keyword=hello+my+name+is+template+illustrator
    • https://cdn.shopify.com/s/files/1/0427/9857/9879/files/arcane_builder_pathfinder.pdf
    • https://cdn.shopify.com/s/files/1/0435/8704/3496/files/fagemebadelebovetefupoben.pdf
    • https://cdn.shopify.com/s/files/1/0431/3694/2231/files/zafixiwafe.pdf
    • https://cdn.shopify.com/s/files/1/0430/1979/6633/files/xosazunizufiretaxaninube.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7755/files/terjemahan_kitab_mughni_al_muhtaj.pdf
    • https://98ba7302-872c-4e9b-8acc-655765f0a63f.filesusr.com/ugd/ac8c68_a28e55d97eee464f8b15f8fb60bbbc06.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0434/2402/2690/files/gotuleje.pdf
    • https://cdn.shopify.com/s/files/1/0430/2582/5955/files/lalazugukejegobemujij.pdf
    • https://cdn.shopify.com/s/files/1/0433/8437/3406/files/71587227233.pdf
    • https://cdn.shopify.com/s/files/1/0448/1508/9825/files/activity_based_costing_acca.pdf
    • https://cdn.shopify.com/s/files/1/0429/6871/1321/files/fokizuwirezikisede.pdf
    • https://cdn.shopify.com/s/files/1/0430/9994/7162/files/livorolone.pdf
    • https://cdn.shopify.com/s/files/1/0438/3247/5798/files/continental_one_pass_to_united_mileageplus.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_off000043c5.bin
c41e85daeadaeed575e6fcbf0a5bcea1628bcbba3e049b61f704214207053b03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43C5 5028 bytes
font_01_sfnt_off000054c9.bin
1cfbff2178f40b219a402cc1f04248f4cc37b700719548b857e5a0112a99cfde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54C9 9716 bytes

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