Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c0a6017635b507c…

MALICIOUS

PDF

111.2 KB Created: 2020-08-14 08:08:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5406a57500a96d1eb1a30ca584272a0c SHA-1: 18a965d39fecbc32794242a04ca820d75cf7d7ef SHA-256: 8c0a6017635b507c789b204a34aa63f1db4bb2de6b1f6f4dddfa0ddd9de12258
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, some hosted on Shopify. The document also includes a heuristic indicating it's a password-protected archive lure, suggesting it's designed to bypass gateway security by encrypting the actual payload. The embedded URL 'https://ttraff.com/wb?keyword=umf%2040-1-4%20refractive%20eye%20surgery%20worksheet' is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/wb?keyword=umf%2040-1-4%20refractive%20eye%20surgery%20worksheet
    • http://sufetib.christepiscopalmusic.com/uploads/1/3/1/4/131406390/d4d5ddc0246dd.pdf
    • http://files.zoomkidspalakkad.com/uploads/1/3/1/4/131406985/2758958.pdf
    • http://files.powerlandrealty.com/uploads/1/3/2/7/132740260/7668556.pdf
    • https://cdn.shopify.com/s/files/1/0434/9578/4600/files/45296901788.pdf
    • https://cdn.shopify.com/s/files/1/0437/7945/7175/files/burasatixevi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3000/3358/files/kipin.pdf
    • https://cdn.shopify.com/s/files/1/0438/5108/8032/files/5371226219.pdf
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/bsc_2_year_chemistry_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/4744/3865/files/thuthuka_bursary_application_form_2020.pdf
    • https://cdn.shopify.com/s/files/1/0448/0493/1746/files/disivutavijepot.pdf
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/vomamibodejewupupazugagal.pdf
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/45866814465.pdf
    • https://cdn.shopify.com/s/files/1/0434/2736/5031/files/bach_bwv_1004_chaconne_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0449/0254/7611/files/ncert_biology_class_11_new_edition_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/8860819306.pdf
    • https://cdn.shopify.com/s/files/1/0430/9411/4455/files/physical_therapy_assistant_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0433/0792/5654/files/62373440466.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_off00015fda.bin
645e2a57a94954ad4cad506b659c84e5ee7297986baf1432ed1eb72277665ffa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15FDA 5664 bytes
font_01_sfnt_off0001735e.bin
25c6c6a367e45c648aec526c8485570ced5c0cae37d4d0657b6fecfcbe90ef91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1735E 14416 bytes
font_02_sfnt_off0001a0c0.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A0C0 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.