Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cfe8e186d7842cf…

MALICIOUS

PDF

83.2 KB Created: 2020-09-18 06:15:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50f5fd0bbeb9de3130fee005cb3a0a05 SHA-1: 24d84f8df695f52496e47e9ba0f2386a053e5758 SHA-256: 3cfe8e186d7842cf559296107bbac8891f37aba03b8d99c93bab1785dfc82117
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.me/wix?keyword=1.2+por+que+existen+las+organizaciones'. This indicates the document's primary purpose is to redirect users to a potentially harmful site. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. No scripts were extracted, and the PDF structure itself does not suggest further malicious actions beyond the redirection.

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.me/wix?keyword=1.2+por+que+existen+las+organizaciones
    • https://ce0a350e-2ac9-4bc6-8f64-643ab1ff3f15.filesusr.com/ugd/77941b_6ad0824c690845f4a0a237d763f0e4ee.pdf?index=true
    • https://1a3546e6-d1a4-434d-9fb4-0ca741fb2948.filesusr.com/ugd/2ac701_2c96d3b59b51414b9942412fc1fbdf5c.pdf?index=true
    • https://5ea75b48-4b44-45b5-bc73-52b49858b561.filesusr.com/ugd/cece23_7ffe4e7e97214954b3a3dcebdbae072d.pdf?index=true
    • https://e498e8e4-cce1-4c99-b221-aa6ae09c7e94.filesusr.com/ugd/c33cdb_564ac9957e1b46e3ad82ddfdd2ed6ab9.pdf?index=true
    • https://a723e379-7bd7-4e78-b209-01995b3812f2.filesusr.com/ugd/d2759c_950101b1958041b0a7b4080117a9ba4e.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0432/0159/3502/files/ruwejepogutejifereli.pdf
    • https://cdn.shopify.com/s/files/1/0484/3664/1957/files/whatsapp_latest_version_apk_mirror.pdf
    • https://cdn.shopify.com/s/files/1/0431/8583/2096/files/weneg.pdf
    • https://bbc8419e-2142-46be-aee4-6c84dbf57c3c.filesusr.com/ugd/575363_92bd2c541ca845f0978ded448baf1167.pdf?index=true
    • https://647d8307-c603-4ed8-ac4a-4e548576c422.filesusr.com/ugd/bae363_f01609b3f0834fa68cf8d9bdc671b8be.pdf?index=true
    • https://313c4649-5236-4db7-9010-1e76e0a043a0.filesusr.com/ugd/1e11d0_974c3117941f4a4da8dfc2e1596166d1.pdf?index=true
    • https://72e93752-c835-4c6f-b17b-3770caeff70d.filesusr.com/ugd/33a16d_0195dedaa2284a688f28578b9f2f63f9.pdf?index=true
    • https://1aa4527e-92b1-46f3-8aa6-014d1e27bbfa.filesusr.com/ugd/5f4192_55b11675e0bb443ca0a6d305f83fd79c.pdf?index=true
    • https://7812e968-6766-455f-8636-407e1abcc214.filesusr.com/ugd/8a9bcc_9fec202ed15c4c0bbfbef80eff26d957.pdf?index=true
    • https://939e936b-9177-4728-84ca-e20967903ac3.filesusr.com/ugd/564d2e_a34ab1cd1f3740769647d8ebe16cc3ca.pdf?index=true
    • 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_off00010353.bin
9fb142892078e4b4289d11129480ffa89844758bf8a259c26f7ee372dd6b24ee
pdf-font-stream PDF embedded font (sfnt) at offset 0x10353 5468 bytes
font_01_sfnt_off00011616.bin
4f6c430e9ea4df318e45bf38aa83ae7910711160a136a4960f1313eff9750071
pdf-font-stream PDF embedded font (sfnt) at offset 0x11616 12464 bytes