Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14b4886b871c068…

MALICIOUS

PDF

79.7 KB Created: 2020-09-01 07:29:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8007e0a597e80dd9b67e1e7e59eb4137 SHA-1: 51a7fdc5ab1968f875e2cc11f03f2b52cb853944 SHA-256: f14b4886b871c0680ec1ae90b3bcc1092c69ad555ea2e3bf819e36b05d363617
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to known malicious infrastructure. The document body, though heavily obfuscated, contains text suggesting it is an 'incident response plan test report' and includes the malicious URL. This suggests a social engineering attack to trick the user into visiting a malicious site.

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.ru/wix?keyword=incident+response+plan+test+report
    • https://cdn.shopify.com/s/files/1/0435/2416/1704/files/journal_bearing_design_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/tetap.pdf
    • https://cdn.shopify.com/s/files/1/0432/8688/8601/files/manufacturing_accounting_in_tally_erp_9.pdf
    • https://cdn.shopify.com/s/files/1/0430/9997/9930/files/63931012716.pdf
    • https://cdn.shopify.com/s/files/1/0433/5042/5750/files/68116030372.pdf
    • https://cdn.shopify.com/s/files/1/0445/8368/2212/files/gatutunejuvigalozu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5869/1232/files/55017828587.pdf
    • https://cdn.shopify.com/s/files/1/0433/3538/5243/files/mimazawuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75904593322.pdf
    • https://cdn.shopify.com/s/files/1/0438/3725/9938/files/woxibezowujeka.pdf
    • https://cdn.shopify.com/s/files/1/0430/5459/6250/files/wewuderebezipiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/2745/5387/files/arrays_and_strings_in_c.pdf
    • https://cdn.shopify.com/s/files/1/0428/5965/9420/files/mozoraxupivevepa.pdf
    • https://cdn.shopify.com/s/files/1/0436/2380/9187/files/english_to_gujarati_dictionary_free_download_file.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2f2.bin
94b04c06eb298d2d65ec7a79e6c5d44f2d521e402d202ab2c293fe590197a304		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F2 4792 bytes
font_01_sfnt_off0000f32c.bin
92ddcb4187b2cb38d05d1a7b0a64acc1823b72e446a6ff59edec66c5be8f9593		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF32C 15532 bytes
font_02_sfnt_off00012393.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12393 4324 bytes

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