Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6547ec5b210ae98…

MALICIOUS

PDF

50.6 KB Created: 2020-09-01 15:02:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 792a796550a94b91e207efa67df3c390 SHA-1: d7c14baf7d6dda9029fecdafdf5c2461ee665f03 SHA-256: e6547ec5b210ae98d1e3080ac08865f67597619af7666abb3b0e9f759c993557
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with multiple links pointing to Shopify-hosted PDF files. One critical heuristic firing indicates a malicious redirector link to 'ttraff.com', suggesting the primary purpose is to redirect users to malicious content. The document body contains garbled text and embedded URLs, further supporting the lure-based attack pattern. 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/wix?keyword=k+morling+geometric+engineering+drawing+pdf
    • https://cdn.shopify.com/s/files/1/0432/7217/5784/files/asus_rtn66u_firmware.pdf
    • https://cdn.shopify.com/s/files/1/0435/3199/3242/files/40656628461.pdf
    • https://cdn.shopify.com/s/files/1/0431/3278/0701/files/differential_calculus_for_beginners_joseph_edwards.pdf
    • https://cdn.shopify.com/s/files/1/0434/6042/7928/files/khalid_bin_al_waleed.pdf
    • https://cdn.shopify.com/s/files/1/0428/1715/9335/files/11812511376.pdf
    • https://cdn.shopify.com/s/files/1/0429/4203/8182/files/fagiraziseretofopetu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/domino_s_pizza_menu_uk.pdf
    • https://cdn.shopify.com/s/files/1/0460/6518/9019/files/kisavalilusidibixexab.pdf
    • https://static.usrfiles.com/ugd/b5aed9_c2d0cada48ab49f68417ed2f7f6f5e93.pdf
    • https://static.usrfiles.com/ugd/4d6844_5a68ec5253cf4a569df95b16868da07b.pdf
    • https://cdn.shopify.com/s/files/1/0440/1247/0422/files/passport_size_photo_a4_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/5126/0836/files/sofozabanoj.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065c3.bin
90f10b52ab05884bc61d34390ce950d73e7d5e46680940519ed86725acb3a427
pdf-font-stream PDF embedded font (sfnt) at offset 0x65C3 5148 bytes
font_01_sfnt_off00007732.bin
2d35fe1b112251630f6c3e185fb4bf58c6327cea99f60afab3ca0473214b5b30
pdf-font-stream PDF embedded font (sfnt) at offset 0x7732 2116 bytes
font_02_sfnt_off000080fe.bin
1a2cb5c97a431ffffe7ab4691e2d27b7979cef9ec20c7af609714192e17e5de2
pdf-font-stream PDF embedded font (sfnt) at offset 0x80FE 15024 bytes
font_03_sfnt_off0000af35.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xAF35 4324 bytes