Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea10db2b4e3c5d36…

MALICIOUS

PDF

51.3 KB Created: 2020-08-04 00:12:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c06f8e07726672a69493cb38f70e34d8 SHA-1: 7df1f2b337cfeb67ce1dcadddad0dac7f35f61da SHA-256: ea10db2b4e3c5d369e54e7d11209c22434012b7d9770e0850d0b58e8000e48d2
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. The presence of numerous other links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase the visibility of the malicious redirector. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=adjectif+verbal+ou+participe+pr%25C3%25A9sent+pdf
    • http://files.lisamedoffdesigns.com/uploads/1/3/0/9/130969313/c5fe39b8e02.pdf
    • http://files.seattlefamilychurch.org/uploads/1/3/1/3/131398091/panepamubatiju.pdf
    • http://files.legallyours.org/uploads/1/3/1/6/131637839/a75b915f15e3151.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/79402223619.pdf
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/64338250503.pdf
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/hemorrhagic_cerebrovascular_event.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.pdf
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/kebulexinom.pdf
    • https://cdn.shopify.com/s/files/1/0430/8641/3985/files/nra_basics_of_pistol_shooting.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2119/files/61649397630.pdf
    • https://cdn.shopify.com/s/files/1/0435/4713/2068/files/cancers_journal.pdf
    • https://cdn.shopify.com/s/files/1/0431/1541/3661/files/soteloseruni.pdf
    • https://cdn.shopify.com/s/files/1/0433/5425/9610/files/how_to_hack_typing_agent.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/create_random_string_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0431/1685/5457/files/lepebotul.pdf
    • https://cdn.shopify.com/s/files/1/0431/7744/3483/files/81234368192.pdf
    • https://cdn.shopify.com/s/files/1/0434/0885/1098/files/datujaxewavabaxege.pdf
    • https://cdn.shopify.com/s/files/1/0435/8298/0259/files/mituliketowovezaroti.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_off000064b8.bin
c385a37eb77343543b6c72f2038570c844fb8bcf2ce1f636014363cc4a34b691		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64B8 5436 bytes
font_01_sfnt_off000076f4.bin
2b17894289ef4ac549ca5ccbfe538e6ebde94701791c0542cba9a71f2d67f349		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76F4 2268 bytes
font_02_sfnt_off00008107.bin
fce8f6dd7c77677016f5a522e15884ed47474844d2a8e894008f6c4075fa6901		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8107 15788 bytes
font_03_sfnt_off0000af3d.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF3D 4324 bytes

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