Malicious PDF — malware analysis report

Static analysis result for SHA-256 c433f1d30ba30e9f…

MALICIOUS

PDF

46.1 KB Created: 2020-08-11 15:01:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c17641f2c15e8f97560a8360d333914 SHA-1: fffbff2e0692f50ce70169701d11f5a607657e2a SHA-256: c433f1d30ba30e9f087a2571969e082f621684011efd7d13e8172c892127b6b8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which point to a link farm hosted on cdn.shopify.com. One of the embedded URLs, 'https://ttraff.com/pify?keyword=genetic+skin+disorders+pdf', is identified as a malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or phishing. 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.com/pify?keyword=genetic+skin+disorders+pdf
    • http://files.ethics-based-on-science.com/uploads/1/3/1/4/131438055/dafijatigepo_dolurulelana_lexek.pdf
    • http://files.rootedimaginings.com/uploads/1/3/0/7/130739776/f770c4.pdf
    • http://files.wormfoodforthough.net/uploads/1/3/0/9/130969243/e9c22e71c4f8.pdf
    • http://files.busybeeorganize.ca/uploads/1/3/0/9/130969004/gojebifazalomo-maxurapokenoxo.pdf
    • http://bigojog.tryfluency.com/uploads/1/3/0/9/130969472/wofenexipulijow_tagowigusiruge_bivin_kikivimiweb.pdf
    • https://cdn.shopify.com/s/files/1/0438/9833/9496/files/caucasian_chalk_circle_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/what_is_biological_weathering.pdf
    • https://cdn.shopify.com/s/files/1/0435/2655/3755/files/gofuderedevolirofol.pdf
    • https://cdn.shopify.com/s/files/1/0434/4905/7430/files/placenta_previa_ministerio_da_saude.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13578549785.pdf
    • https://cdn.shopify.com/s/files/1/0435/0240/3750/files/best_windows_gba_emulator.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/potion_of_harming_2.pdf
    • https://cdn.shopify.com/s/files/1/0428/1987/9068/files/tiraxifuduwenuxesimavi.pdf
    • https://cdn.shopify.com/s/files/1/0441/3577/6408/files/learn_sql_queries_with_examples.pdf
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/arquetipos_femeninos_y_masculinos.pdf
    • https://cdn.shopify.com/s/files/1/0431/0879/4530/files/tuzetexaxisafokak.pdf
    • https://cdn.shopify.com/s/files/1/0433/3623/7206/files/xurawojabexeti.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_off000078d5.bin
d901fe000c45a532c44a2fe20b6849db76d5be6a8b7c69e68d889dfac588c0ab
pdf-font-stream PDF embedded font (sfnt) at offset 0x78D5 5000 bytes
font_01_sfnt_off000089f3.bin
a072b02d1a8bcbe792a7ceeca8ef555684b029b9811364219e5d99e7b0ba5dd8
pdf-font-stream PDF embedded font (sfnt) at offset 0x89F3 9852 bytes