Malicious PDF — malware analysis report

Static analysis result for SHA-256 98bcdb92f1c34515…

MALICIOUS

PDF

64.9 KB Created: 2020-08-05 03:15:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90227ab8c7155ef631e09a01591daba3 SHA-1: ef29e52d44d882e6bf7f9172aa239aac21c7e696 SHA-256: 98bcdb92f1c34515c09e28d8adcd27c7c4907b8b27b074f274fef181135a5109
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a phishing or redirection attack, likely aiming to lead the user to malicious content. The document body, though heavily obfuscated, contains the URL that triggered the heuristic, reinforcing the redirection attempt. No scripts were extracted, limiting the analysis of further stages.

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=arquitectura+paleocristiana+y+bizantina+pdf
    • http://files.100womenwhocaremedina.com/uploads/1/3/1/4/131436991/musadamupabakeri.pdf
    • http://files.journeystoassisi.com/uploads/1/3/1/3/131380558/509c2.pdf
    • http://files.theveganoutfitter.biz/uploads/1/3/1/4/131438069/mafumufupa.pdf
    • http://files.o2clinics.com/uploads/1/3/1/4/131438474/f7349.pdf
    • http://files.100womenwhocaremedina.com/uploads/1/3/1/4/131436991/musadamupabake
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/bagodojenabas.pdf
    • https://cdn.shopify.com/s/files/1/0430/8526/7097/files/nuxep.pdf
    • https://cdn.shopify.com/s/files/1/0434/4093/0983/files/toberifemaju.pdf
    • https://cdn.shopify.com/s/files/1/0428/8135/1839/files/rangitaranga_english_subtitle_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/majusotogozarow.pdf
    • https://cdn.shopify.com/s/files/1/0432/3203/4976/files/36354350463.pdf
    • https://cdn.shopify.com/s/files/1/0438/6498/1664/files/how_to_remove_windows_10_watermark.pdf
    • https://cdn.shopify.com/s/files/1/0433/5383/3637/files/susurobedibadexu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0469/0581/files/xedodisalitogokupokup.pdf
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/21006104764.pdf
    • https://cdn.shopify.com/s/files/1/0435/3189/4944/files/sagado.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_off0000bcb9.bin
8b174cd3b8891866e5d6a1596e448b6e2a8e3d2402e1ae0d7a0eafbb0d78a945		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBCB9 5556 bytes
font_01_sfnt_off0000cfba.bin
d2335edfd83f8fc464d4044884204cb6d12a12bfbfd03b752d680adb4741338d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBA 12216 bytes

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