Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8d2d2b74e27b26c…

MALICIOUS

PDF

41.4 KB Created: 2020-08-31 01:25:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bc6197710654678ff615c9e57670319 SHA-1: 5c1346d86cd088eff4b212c845bf7577a7b98d5c SHA-256: e8d2d2b74e27b26c52e2736043dcffd1ecbf39e9a894ef8f7cffdc4627ecda4d
140 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.ru'. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure, possibly related to billing or tax information, consistent with callback phishing or tech-support scams. No scripts were extracted, limiting the analysis of direct payload execution.

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.ru/wix?keyword=ahmed+zaman+tax+agent+lakemba
    • https://cdn.shopify.com/s/files/1/0429/8552/1311/files/bise_sukkur_inter_result_2020.pdf
    • https://cdn.shopify.com/s/files/1/0462/6015/8613/files/bahubali_2_full_movie_tamil_play._com.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/interior_architecture_magazine.pdf
    • https://cdn.shopify.com/s/files/1/0428/2905/4118/files/sesuxofatabeziripewel.pdf
    • https://cdn.shopify.com/s/files/1/0427/8022/9791/files/69317303423.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50751207741.pdf
    • https://cdn.shopify.com/s/files/1/0431/5381/7762/files/76777617022.pdf
    • https://cdn.shopify.com/s/files/1/0433/1431/5422/files/aeneid_book_8.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/dukokeravolibotutifofimok.pdf
    • https://cdn.shopify.com/s/files/1/0437/4262/5953/files/digital_photography_school.pdf
    • https://cdn.shopify.com/s/files/1/0431/0423/9783/files/81634311279.pdf
    • https://cdn.shopify.com/s/files/1/0432/0352/6820/files/intermediate_accounting_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/7000/5156/files/chambal_ki_kasam_old_movie_song.pdf
    • https://cdn.shopify.com/s/files/1/0431/7085/7122/files/wibaselirimowivuvexe.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_off000061fe.bin
832bcc354ef104b6b6d38fd67ce9f87d06ef70b03ad6a7e3766106fe0e437f62
pdf-font-stream PDF embedded font (sfnt) at offset 0x61FE 5276 bytes
font_01_sfnt_off000073d9.bin
dc04d0df2774258fb04267addd278995446a1ac18d3026c7c2306ed922efbc9b
pdf-font-stream PDF embedded font (sfnt) at offset 0x73D9 11320 bytes