Malicious PDF — malware analysis report

Static analysis result for SHA-256 22820f1388058dcb…

MALICIOUS

PDF

42.8 KB Created: 2020-08-15 05:42:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 915016994771b39ea60d7d303e301f5f SHA-1: dfeb5d99814163ee9207418ca662a99b76ae9458 SHA-256: 22820f1388058dcb972230235e0a4a582023a99e5ec80cbee643d5e49c6fab22
120 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 'https://ttraff.ru/pify?keyword=spread+shotgun+wing+t+offense+playbook+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, the PDF was flagged for containing a mass external PDF link farm, with many links hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL and several benign-looking Shopify URLs, suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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/pify?keyword=spread+shotgun+wing+t+offense+playbook+pdf
    • http://files.rhymedilation.com/uploads/1/3/0/7/130776786/c138d437c91322.pdf
    • http://miluvudof.yoniart2000.com/uploads/1/3/0/7/130740221/4512610.pdf
    • http://zevevari.modernretailcollective.store/uploads/1/3/1/4/131408027/bd0df6.pdf
    • http://files.swiftekconsulting.com/uploads/1/3/2/6/132681647/lixasabonulijov.pdf
    • http://kereveji.inspirecreativeservices.com/uploads/1/3/2/6/132682883/b05cdb7ebf5.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29480145432.pdf
    • https://cdn.shopify.com/s/files/1/0434/7750/0056/files/fatores_ecologicos_bioticos_e_abioticos.pdf
    • https://cdn.shopify.com/s/files/1/0438/0363/9970/files/aristotle_s_six_elements_of_tragedy.pdf
    • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/apostles_creed_catholic.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9160/files/detective_byomkesh_bakshi_book.pdf
    • https://cdn.shopify.com/s/files/1/0437/1218/4474/files/zazalox.pdf
    • https://cdn.shopify.com/s/files/1/0437/1618/2166/files/cesur_yeni_dnyay_ziyaret.pdf
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/46579901109.pdf
    • https://cdn.shopify.com/s/files/1/0431/1285/7754/files/transient_students_definition.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5959/files/28088834894.pdf
    • https://cdn.shopify.com/s/files/1/0432/7328/9888/files/28598206613.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_off00005a5c.bin
e34c8fe3607514a2ee5ea0d091fec1ce302045b1716cc526a3eb5046770672f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5C 5688 bytes
font_01_sfnt_off00006dc2.bin
c24d8d295950bbc0a3776c8b14b026b284f9025d29723b8bee04018ecd118c18
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC2 10092 bytes
font_02_sfnt_off00009035.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9035 4324 bytes