Malicious PDF — malware analysis report

Static analysis result for SHA-256 d60c620b8e3934d2…

MALICIOUS

PDF

35.3 KB Created: 2020-08-19 04:01:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81c086faf19ad8ecf5ee5fabf1dd1d9a SHA-1: 528f17865e8605c65f3eb6dc1bbcfd3531f14c68 SHA-256: d60c620b8e3934d2e13f8d17ad3b7bfe6b58d1878958dfce40393324354ed45b
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=lignospan+special+safety+data+sheet'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily obfuscated, contains the same malicious URL and appears to be a lure related to a 'lignospan special safety data sheet'. The primary attack pattern involves redirecting the user to a malicious site under the guise of providing a safety 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.com/pify?keyword=lignospan+special+safety+data+sheet
    • http://files.royalerunkennels.com/uploads/1/3/0/9/130969065/xudiveraxub_wiliv_kukipitagaret_gikasuku.pdf
    • https://cdn.shopify.com/s/files/1/0430/5528/4373/files/bodaromamunisazele.pdf
    • https://cdn.shopify.com/s/files/1/0437/5802/6903/files/1810337889.pdf
    • https://cdn.shopify.com/s/files/1/0434/3355/8168/files/93104051214.pdf
    • https://cdn.shopify.com/s/files/1/0439/2045/7883/files/aisc_manual_15th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0431/9979/1265/files/dekepevoxuna.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8073/files/wininuwufugapokexusob.pdf
    • https://cdn.shopify.com/s/files/1/0432/5828/2152/files/gears_of_war_mad_world.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/kekasopil.pdf
    • https://cdn.shopify.com/s/files/1/0434/7795/8822/files/41108605486.pdf
    • https://cdn.shopify.com/s/files/1/0431/3484/5079/files/33728650252.pdf
    • https://cdn.shopify.com/s/files/1/0449/1057/5771/files/blitz_brigade_hack_apk_2019.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_off00004a69.bin
b82437778118e9d74aaf0052b7d8a4dae539803bf0c9447614a0b7ff01c3160a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A69 5364 bytes
font_01_sfnt_off00005cb2.bin
1c8549c53c32c7ecd6fd8a8c6351800e372938c084072b5e8241314dfbec24b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB2 10496 bytes

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