Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4a595094f444fbb…

MALICIOUS

PDF

60.7 KB Created: 2020-09-05 09:51:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9c86b23dc71cdd6aaba7871b3e53753a SHA-1: d9f048e936a921aa8399165e2fab129996a54531 SHA-256: c4a595094f444fbb85f4643b83fcb01354ec1183d83d684fcdf76b2eb77d9671
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a game, combined with urgency language. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.club/pify?keyword=alien+shooter+campaign+3+free
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31995481059.pdf
    • https://cdn.shopify.com/s/files/1/0434/8814/9654/files/consequences_of_melting_ice_sheets_and_glaciers.pdf
    • https://cdn.shopify.com/s/files/1/0434/1750/1853/files/muwusevejusoxelapuge.pdf
    • https://static.usrfiles.com/ugd/9734e7_bd9174eec9b34b0ba0b590636e014fdc.pdf
    • https://static.usrfiles.com/ugd/b8c837_dadf793f1f094f208f6c03aaa8983bea.pdf
    • https://static.usrfiles.com/ugd/19103d_d813bf6570dd4a68ad2558fed6623c50.pdf
    • https://static.usrfiles.com/ugd/80c1db_8c52363284e342f4923468f31a51c2cc.pdf
    • https://static.usrfiles.com/ugd/b8c837_b65c760b31a648a095036790a0873184.pdf
    • https://cdn.shopify.com/s/files/1/0441/1670/5432/files/2466780641.pdf
    • https://cdn.shopify.com/s/files/1/0431/5388/3293/files/configurar_email_bluehost_android.pdf
    • https://cdn.shopify.com/s/files/1/0459/9824/4007/files/53788934433.pdf
    • https://cdn.shopify.com/s/files/1/0435/1629/7368/files/ginusabelije.pdf
    • https://cdn.shopify.com/s/files/1/0430/6547/5229/files/daxapulakugukivoba.pdf
    • https://cdn.shopify.com/s/files/1/0454/2988/3048/files/bangla_boi_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/7764/1116/files/wugojuvezotek.pdf
    • https://cdn.shopify.com/s/files/1/0428/4317/7126/files/rustoleum_cabinet_transformations_top_coat_alternatives_minwax.pdf
    • https://cdn.shopify.com/s/files/1/0428/8921/6163/files/dalufobo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ddc.bin
5015cee2145a8f4effdbd8684ba62f823b30dce7b1ee1278a20430b7d65f245d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DDC 5580 bytes
font_01_sfnt_off0000a0a6.bin
cf50d13c5c21d2e34fba0d9dd21119d4839fc35fdaebfe62cbacf51850cc328d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0A6 1936 bytes
font_02_sfnt_off0000a9e5.bin
83c1376265d06657d947f419505e317d3a4605fff915745fd643d9b1b7f87004		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9E5 10868 bytes
font_03_sfnt_off0000ce8f.bin
80e6db5095f5ad6b9fcee4a2b1d01ca4d7789885a01badedbfd0dbc0cd442411		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE8F 16704 bytes

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