Malicious PDF — malware analysis report

Static analysis result for SHA-256 385fc08ef2377743…

MALICIOUS

PDF

43.4 KB Created: 2020-09-02 02:58:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cefe658a0a1ebb613d55ed32afd571d SHA-1: f7e70c635e2295a82cd3b9dcf3503769590eade6 SHA-256: 385fc08ef2377743ddc078691b79a92a0d8db78726cfa000bcb7d6bbda7f9732
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as a credit report unfreeze lure. The document body and embedded links point to infrastructure designed to host numerous PDFs, likely for SEO poisoning or to distribute further malicious content. The primary malicious URL is https://ttraff.club/wix?keyword=transunion+unfreeze+credit+report, which is known to lead to malicious sites. The presence of many benign Shopify links suggests an attempt to blend in with legitimate content.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.club/wix?keyword=transunion+unfreeze+credit+report
    • https://cdn.shopify.com/s/files/1/0432/4117/7256/files/calling_my_name_liara_tamani.pdf
    • https://cdn.shopify.com/s/files/1/0433/8958/3514/files/37606976599.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/46646409264.pdf
    • https://cdn.shopify.com/s/files/1/0437/2329/2840/files/non_verbal_reasoning_sample_paper.pdf
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/63095754719.pdf
    • https://cdn.shopify.com/s/files/1/0437/5802/6903/files/susimeninimevekaxikaj.pdf
    • https://cdn.shopify.com/s/files/1/0434/7507/5225/files/du_battery_saver_pro_apk_uptodown.pdf
    • https://cdn.shopify.com/s/files/1/0433/5845/3918/files/haber_yazma_teknikleri.pdf
    • https://cdn.shopify.com/s/files/1/0430/9234/4999/files/66658445756.pdf
    • https://cdn.shopify.com/s/files/1/0436/1152/1187/files/dnd_5e_divine_sense.pdf
    • https://cdn.shopify.com/s/files/1/0434/2035/2677/files/wepevux.pdf
    • https://cdn.shopify.com/s/files/1/0460/3189/6740/files/vcenter_6._5_ova_file.pdf
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/vezaletupat.pdf
    • https://static.usrfiles.com/ugd/b8c837_0a498d95f1c549b0a84515fce544a631.pdf
    • https://static.usrfiles.com/ugd/9fc8c3_00db9931b6504b1da23e2bf08a9ae1be.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_off00006d78.bin
a35e48014f394ba6147c5dac18b36c78b19d849bbd8469a18b6daed571e2ff92
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D78 5116 bytes
font_01_sfnt_off00007ef6.bin
70b1dd42d6d28c37bba9a4654f3f9c7b2aa4c95699f3a48bba907960ba1d392f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF6 9924 bytes