Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc371b18c596decb…

MALICIOUS

PDF

51.4 KB Created: 2020-08-15 07:51:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70b3cf2b1547d81a27c6ad03eeb341f6 SHA-1: df0ab407fb9b8fd13fc05fbe010be33fa4063f86 SHA-256: cc371b18c596decba813a46fd6b8a22bcd0bd80f862a61808039d6d56703674a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though heavily obfuscated, contains text referencing 'wedding invitation powerpoint templates' and includes the URL https://ttraff.com/pify?keyword=wedding+invitation+powerpoint+templates, which is flagged as a malicious redirector. The file also exhibits characteristics of a PDF_SEO_LINK_FARM, with numerous embedded links to other PDF files, likely for SEO manipulation or to host further malicious content. The primary attack vector appears to be social engineering, luring the user to click on a link that redirects to malicious content.

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=wedding+invitation+powerpoint+templates
    • http://penokokat.yourtcc.ca/uploads/1/3/0/7/130776356/famesoxonol-vaxesama.pdf
    • http://files.jayibold.com/uploads/1/3/2/6/132681855/e2972d4.pdf
    • http://files.kristinedizon.com/uploads/1/3/2/7/132710772/finodi-reregu-guzogerobon.pdf
    • http://files.campmiller.com/uploads/1/3/1/1/131164281/fonisukofuw_latafazasemak.pdf
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/bible_quiz_questions_and_answers_on_ruth.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7330/files/notixifipetakuneloboga.pdf
    • https://cdn.shopify.com/s/files/1/0431/2337/6277/files/wumopemepukisoxa.pdf
    • https://cdn.shopify.com/s/files/1/0450/1169/7814/files/felate.pdf
    • https://cdn.shopify.com/s/files/1/0428/3065/9750/files/rabunevep.pdf
    • https://cdn.shopify.com/s/files/1/0437/1765/6731/files/bibliografia_anotada.pdf
    • https://cdn.shopify.com/s/files/1/0433/9649/7573/files/actividades_adverbios_de_frecuencia_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0432/4157/0466/files/30689219867.pdf
    • https://cdn.shopify.com/s/files/1/0435/3346/7808/files/88467792109.pdf
    • https://cdn.shopify.com/s/files/1/0430/6999/7207/files/72481342146.pdf
    • https://cdn.shopify.com/s/files/1/0435/3346/7808/files/year_2_spelling_test.pdf
    • https://cdn.shopify.com/s/files/1/0440/8311/8232/files/zuwinekesuvinetabise.pdf
    • https://cdn.shopify.com/s/files/1/0431/5555/4458/files/kikowokumalekaxo.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_off00007edc.bin
b34d1a95b1103f9e42f8e6d00032aaafc4889ba4fea803b7c8835f66d028c229
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDC 5232 bytes
font_01_sfnt_off000090a2.bin
cc1407f5289e04dc189c5df4516e41b63e3a8d7b64dd989fa7283e34c3a13a94
pdf-font-stream PDF embedded font (sfnt) at offset 0x90A2 9840 bytes
font_02_sfnt_off0000b24c.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xB24C 4324 bytes