Malicious PDF — malware analysis report

Static analysis result for SHA-256 c58f30c7ad4abc36…

MALICIOUS

PDF

34.2 KB Created: 2020-08-14 10:03:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 745cde18e0278c599209d64ef6fdd1a0 SHA-1: d786ff406c3fe87bc8c992828d95af1663077760 SHA-256: c58f30c7ad4abc36187fd8f67d7b39a8122ebf8b6a5847fbd7004a502f114bf9
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body and embedded links suggest a lure related to 'Foxit advanced PDF editor', aiming to trick users into clicking the malicious URL. The primary malicious IOC is the ttraff.com redirector, which likely leads to a phishing page or malware download.

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.com/wb?keyword=foxit%20advanced%20pdf%20editor%20full
    • http://solekala.stephaniecammarano.com/uploads/1/3/1/4/131453574/1f8fee58cb72d.pdf
    • http://sefevofab.linmog.co.uk/uploads/1/3/0/8/130873965/4dfcf242c.pdf
    • http://gegabuwox.rthomascpa.com/uploads/1/3/1/6/131606592/1d7eaacf16b9fdb.pdf
    • https://cdn.shopify.com/s/files/1/0432/3174/0066/files/lurixilinog.pdf
    • https://cdn.shopify.com/s/files/1/0447/8110/9405/files/structured_problem_solving_process.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/33720656467.pdf
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/ganiwesebip.pdf
    • https://cdn.shopify.com/s/files/1/0434/0488/6166/files/84724752611.pdf
    • https://cdn.shopify.com/s/files/1/0431/9405/6861/files/60834023015.pdf
    • https://cdn.shopify.com/s/files/1/0432/6300/0734/files/jimuzexemeveseberoru.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zafitizeruzu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8196/5461/files/mla_format_outline.pdf
    • https://cdn.shopify.com/s/files/1/0436/1817/3086/files/fuzifebopemavetebuvavon.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_off0000425b.bin
1121409c56cbad2e8a13c687532992b7fe3dfdc7b0ce40fe2f009ba738a5b74e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x425B 5052 bytes
font_01_sfnt_off000053aa.bin
f4e8eb7b8a46730219d48d5945c9a2976db0cf2b7a96cf8e6f9d26f0a2a989e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53AA 17836 bytes

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