Malicious PDF — malware analysis report

Static analysis result for SHA-256 d567ba8b662f5973…

MALICIOUS

PDF

46.0 KB Created: 2020-09-06 15:39:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ef100f94ed7d4489247e7efed4ab64e SHA-1: 458a58f82be081af338e5b1510ae6d6e0baddabb SHA-256: d567ba8b662f5973a8c686d01869c5a49034b73a7e0bd1c75456bf5f3ae085ad
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to 'cv template indonesia' and the malicious URL. This suggests a social engineering attack aiming to trick users into downloading malicious content by posing as a job-related document.

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.link/wix?keyword=cv+template++indonesia
    • https://static.usrfiles.com/ugd/0d089b_9fa264cb40de4809a1c0a982df7568c8.pdf
    • https://static.usrfiles.com/ugd/22739b_aeeabfef083c474c8cb756fa38b304c3.pdf
    • https://static.usrfiles.com/ugd/9734e7_bbe81c2beb6f4fca973ae4fe14a15032.pdf
    • https://static.usrfiles.com/ugd/f4de5e_8986d85b3b1b4e1c8a10b22ee09bd7d8.pdf
    • https://static.usrfiles.com/ugd/7f614e_58cdac5a4f1b47d88bc1599d8b71452c.pdf
    • https://cdn.shopify.com/s/files/1/0428/7194/7430/files/16787835929.pdf
    • https://cdn.shopify.com/s/files/1/0436/2174/4803/files/jidorezosolapo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/teteg.pdf
    • https://cdn.shopify.com/s/files/1/0448/9219/2923/files/32429341036.pdf
    • https://cdn.shopify.com/s/files/1/0435/6151/7217/files/50646238111.pdf
    • https://cdn.shopify.com/s/files/1/0435/3464/7451/files/t_pain_epiphany_album_download_zip.pdf
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/mage_leveling_guide_vanilla_talents.pdf
    • https://cdn.shopify.com/s/files/1/0431/6269/7894/files/clarinet_hymn_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/zozuzuzoturiwajixuxasukal.pdf
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/38390547692.pdf
    • https://cdn.shopify.com/s/files/1/0431/5014/7733/files/99939830138.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_off00007725.bin
d37229e3d03a5482e2eaaa1e55a43996af39c709bffe5291fa620fdf8556b6a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7725 4976 bytes
font_01_sfnt_off000087fb.bin
711c88159c417e4c913b0d3f93dd49d1794bd73807b58eefcdf30aea8febda74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87FB 10436 bytes

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