Malicious PDF — malware analysis report

Static analysis result for SHA-256 292c14f2664a7c6f…

MALICIOUS

PDF

42.3 KB Created: 2020-08-20 14:12:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 557493ec1dfd6b32f25e7097101b0d50 SHA-1: a8d99bc8d25e7c522c1a26289daa58c3dab90e70 SHA-256: 292c14f2664a7c6fb88cbcde4ee750730f2347bc94dbf6a1a32e2a4ddb014bc2
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=cms+screening+colonoscopy+guidelines'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including 'https://cdn.shopify.com/s/files/1/0429/0809/0535/files/zuderoxizob.pdf'. The document body, though partially corrupted, contains references to the redirector URL and appears to be a lure for users interested in medical guidelines. No scripts were extracted, but the primary attack vector is the malicious link designed to redirect users to harmful 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.cc/pify?keyword=cms+screening+colonoscopy+guidelines
    • http://files.michaeldietze.net/uploads/1/3/2/6/132681855/jakipij_rusidereniseka_busas.pdf
    • http://files.jesimall.com/uploads/1/3/2/7/132740270/1466d00f73ea878.pdf
    • http://dunidawe.jimsvintagemags.com/uploads/1/3/1/3/131380429/1701588ea9f4.pdf
    • https://cdn.shopify.com/s/files/1/0429/0809/0535/files/zuderoxizob.pdf
    • https://cdn.shopify.com/s/files/1/0437/8034/1917/files/980_265_9989.pdf
    • https://cdn.shopify.com/s/files/1/0440/1342/0702/files/56290591574.pdf
    • https://cdn.shopify.com/s/files/1/0450/3774/8382/files/gunebepegonamorezur.pdf
    • https://cdn.shopify.com/s/files/1/0433/7578/8190/files/70794862988.pdf
    • https://cdn.shopify.com/s/files/1/0433/9567/8359/files/you_netflix_series_parents_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/1161/2572/files/adorno_authoritarian_personality.pdf
    • https://cdn.shopify.com/s/files/1/0441/1087/2728/files/hockerill_ofsted_report.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/kusodavokizes.pdf
    • https://cdn.shopify.com/s/files/1/0435/2763/5095/files/rincon_surf_report.pdf
    • https://cdn.shopify.com/s/files/1/0431/5404/7137/files/alto_sax_alternate_finger_chart.pdf
    • https://cdn.shopify.com/s/files/1/0435/7246/1727/files/susenibunap.pdf
    • https://cdn.shopify.com/s/files/1/0450/1841/5254/files/61856770097.pdf
    • https://medlineplus.gov/colonoscopy.html
    • 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_off000068de.bin
0a2dab9c2875d2b362038826c5d3424773fb5f383b30d08a8ff6b1339f4214e4
pdf-font-stream PDF embedded font (sfnt) at offset 0x68DE 5192 bytes
font_01_sfnt_off00007a72.bin
9d6ca5ecb007307edc5bc7c53c90485d81bdb219d09e35f2aa98a4bde50a6c3c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A72 9980 bytes