Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d3048bc377ad53e…

MALICIOUS

PDF

46.5 KB Created: 2020-08-11 00:54:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66bbb2f09d6fb0e7f5fb556a309b4b16 SHA-1: 2ce8fc44ac088349374eec969278ee0cc796122e SHA-256: 1d3048bc377ad53e19006e56ed96bf89e54266a5c811b63b03edd07e48f80faa
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 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though partially corrupted, contains the URL 'https://ttraff.cc/pify?keyword=icaew+case+study+pdf', suggesting a lure to a malicious site disguised as a case study PDF.

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=icaew+case+study+pdf
    • http://files.ultimatewithoutborders.org/uploads/1/3/2/6/132696465/gunitugufolesonu.pdf
    • http://files.sfmga.org/uploads/1/3/0/8/130814003/3da196da.pdf
    • http://files.thefensk.com/uploads/1/3/2/7/132740467/zalakowatinamu.pdf
    • http://gepuzobi.danecountymedicalsociety.org/uploads/1/3/2/8/132814930/difij.pdf
    • https://cdn.shopify.com/s/files/1/0447/2363/4330/files/google_adsense_policy.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tagesagebog.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70277109097.pdf
    • https://cdn.shopify.com/s/files/1/0430/9073/9361/files/deploy_keys_github.pdf
    • https://cdn.shopify.com/s/files/1/0433/1657/6424/files/sijojaloxagivan.pdf
    • https://cdn.shopify.com/s/files/1/0432/1958/3133/files/18._2_modern_evolutionary_classification_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/69712171104.pdf
    • https://cdn.shopify.com/s/files/1/0435/0250/2054/files/37526363421.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/sybex_ccna_security_study_guide_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/48234165952.pdf
    • https://cdn.shopify.com/s/files/1/0430/0839/3369/files/xotig.pdf
    • https://cdn.shopify.com/s/files/1/0433/3184/6296/files/dufexelajujaromoxasig.pdf
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/44124270047.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_off00006c48.bin
e2522c101662f889611b9b456534b166586f60e1c5db1434d9abfdcdcde65ee3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C48 4772 bytes
font_01_sfnt_off00007c9c.bin
15393e2fffeb540c043ae141133575666e953d667189cbb8c983c0d7df87b2c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9C 9996 bytes
font_02_sfnt_off00009ee9.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9EE9 4324 bytes