Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce28b92ca425c2d1…

MALICIOUS

PDF

47.3 KB Created: 2020-09-01 07:31:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1396c6289c2184f809a320f3b172c27c SHA-1: edc7f99b3c0d3aed54099444c065920fd71a9198 SHA-256: ce28b92ca425c2d11f49e4fce7bb96d439c11819fa9ab955719cabddc98ba4a8
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.com', which is associated with malicious activity. The document body, though heavily obfuscated, contains text related to 'Clash of Clans' and the malicious URL, suggesting a lure to trick users into downloading potentially harmful content. The presence of a PDF link farm further indicates a campaign to distribute malicious files.

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.com/wix?keyword=clash+of+clans+pc+game+no
    • https://cdn.shopify.com/s/files/1/0435/4274/1143/files/bazirixibisalesewiri.pdf
    • https://cdn.shopify.com/s/files/1/0433/7857/3464/files/platform_technology_in_pharmaceutical_ppt.pdf
    • https://cdn.shopify.com/s/files/1/0430/8926/4794/files/fuvefogejib.pdf
    • https://static.usrfiles.com/ugd/930050_e7a7a280d5df488caaab120f6b7aca56.pdf
    • https://cdn.shopify.com/s/files/1/0438/2749/5074/files/kinewelo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7556/7777/files/partnership_deed_registration_format.pdf
    • https://cdn.shopify.com/s/files/1/0431/6987/4082/files/22812461840.pdf
    • https://cdn.shopify.com/s/files/1/0433/8404/5719/files/mathworksheets4kids_ordering_integers.pdf
    • https://static.usrfiles.com/ugd/b8c837_a4391f989f0747ad83aa98cfd1849e2a.pdf
    • https://static.usrfiles.com/ugd/cfbfd2_4e00f2fd3a0e44c9b8bd02af08c200dc.pdf
    • https://static.usrfiles.com/ugd/72216b_3e1345ae993c409ea614c504d946f0ab.pdf
    • https://static.usrfiles.com/ugd/04e6f9_da94a853dd264294b2e52b253e1d4585.pdf
    • https://static.usrfiles.com/ugd/ace02d_dcda217e230f4af89b38404c968b41d3.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_off00007c53.bin
71dbded71545b08a7f036a1c2f4faeb71da11fef049e735945eefcc10d073bef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C53 5240 bytes
font_01_sfnt_off00008e03.bin
0895921010b5d471327304f5e6ef26e9856201334955c1652d8b129bc5d1ab43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E03 10296 bytes

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