Malicious PDF — malware analysis report

Static analysis result for SHA-256 549b6b569489eca5…

MALICIOUS

PDF

48.8 KB Created: 2020-07-27 12:52:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a1612c24fd24c77006fd530681c5e0a SHA-1: 214392523690d74fccc8a0a5dc7d535ffafbfd72 SHA-256: 549b6b569489eca57ba2691ea4624392bb9103d66fc2c51233b02e9ce5707ba6
128 Risk Score

Malware Insights

MITRE ATT&CK
T1200 Hardware Add-in T1059.001 PowerShell T1566.002 Spearphishing Attachment T1071.001 Web Protocols

The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lead users to further malicious content. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, suggesting an attempt to game search engine results or distribute malicious files. The presence of a visual download button further supports the lure-based attack pattern.

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.ru/pify?keyword=free++aplikasi+beetalk+for+laptop
    • http://files.wildwestcoastseafoods.com/uploads/1/3/2/6/132681877/8580062.pdf
    • http://files.heidiloveshymns.com/uploads/1/3/2/8/132814898/4928824.pdf
    • http://files.melodymoonbrooke.com/uploads/1/3/0/7/130739971/narapesedurulis_juvixili_fenukofegefaxu.pdf
    • http://files.patriotknivesandgear.com/uploads/1/3/0/7/130738814/berufanapi-vowaburidawiva.pdf
    • https://cdn.shopify.com/s/files/1/0438/1805/7885/files/jetarezimeketegadela.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17232613021.pdf
    • https://cdn.shopify.com/s/files/1/0434/6878/3782/files/30945655052.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4665/files/jifasipadawazavenuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/3851/5095/files/43942222200.pdf
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/lozuvituguserurusi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9328/7331/files/pepavudopezakiwabelesova.pdf
    • https://cdn.shopify.com/s/files/1/0430/7881/1797/files/kugixagodagamimaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/0265/7957/files/vifuzarimafewulop.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_off000081b8.bin
37d88eabbbdec95b357797df92536bc738e0e9643f9e84b07b1dad76e8e2786f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81B8 4736 bytes
font_01_sfnt_off000091d6.bin
54894d0b73f4a0e5d2b3567025d642af91edd15ccefc2fbb25f6e6a81c02f0af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91D6 10448 bytes

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