Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e4c208a38461955…

MALICIOUS

PDF

42.0 KB Created: 2020-08-17 07:33:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06959188241b17f5eb5653029f393294 SHA-1: 5d7b905c7d504400d48392a69f4f0d085d9f5671 SHA-256: 4e4c208a38461955df44830800ff7ed69b905455051a6fd73577b467b637b7d3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a lure for remote support tools and embeds numerous links, including one to a known malicious redirector. The primary malicious link, 'https://ttraff.cc/pify?keyword=copy+sqlite+database+from+android+to+pc', is designed to trick users into clicking by suggesting a technical topic. This link likely leads to further malicious content or exploits. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO manipulation or distributing malicious content.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=copy+sqlite+database+from+android+to+pc
    • http://widaxa.akenkan.org/uploads/1/3/0/9/130969060/rasilerezokeki_kizokevonufazil.pdf
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/tiwamofufumonisadaru.pdf
    • https://cdn.shopify.com/s/files/1/0431/1980/4567/files/mtd_snowblower_parts_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/6177/1430/files/gimazonerig.pdf
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/money_and_finance_word_search_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/4456/8220/files/reformas_borbonicas_nueva_espaa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3622/9278/files/3146025294.pdf
    • https://cdn.shopify.com/s/files/1/0437/8951/6962/files/98140356614.pdf
    • https://cdn.shopify.com/s/files/1/0430/4227/5485/files/tanosodesuxuwifesasapegit.pdf
    • https://cdn.shopify.com/s/files/1/0432/2122/1533/files/81702017324.pdf
    • https://cdn.shopify.com/s/files/1/0433/6487/6453/files/gevemubej.pdf
    • https://cdn.shopify.com/s/files/1/0434/4853/3144/files/43317924395.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_off0000657c.bin
fd23d8bd45d0d3c9e02282d35ebc191f12a0edec5fdc240404b6eca2bea43124		 pdf-font-stream PDF embedded font (sfnt) at offset 0x657C 5572 bytes
font_01_sfnt_off0000785c.bin
8a6dfc51e32e859376042ac92c7657984581cb9ca1ec897635b964b8209fc29b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x785C 10400 bytes

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