Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e92642adc0006c…

MALICIOUS

PDF

40.9 KB Created: 2020-08-30 23:41:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9915344d36a3bc5ea2a1594504b19727 SHA-1: bc7d1143c93dac6aec40bb2983e7b7deb9782b62 SHA-256: b6e92642adc0006c5fdf9c816236e9a8339e8048b4eef27caea10f051129392f
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised with a government-related keyword, aiming to lure users to a potentially harmful site. The document also hosts a large number of external PDF links, suggesting a link farm or SEO poisoning tactic. The presence of a callback phishing lure further supports the malicious intent, likely for a phishing or scam campaign.

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.cc/wix?keyword=employer+texasattorneygeneral+gov
    • https://cdn.shopify.com/s/files/1/0437/3757/9674/files/bartleby_melville_franais.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zosakasebiribo.pdf
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/acomaf_coloring_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/bodixomoxelotarujugej.pdf
    • https://cdn.shopify.com/s/files/1/0429/3804/0487/files/xmanager_6_free_with_product_key.pdf
    • https://cdn.shopify.com/s/files/1/0429/4246/4163/files/4685931468.pdf
    • https://static.usrfiles.com/ugd/b8c837_73a80f57492649dd8f59a51421ebdead.pdf
    • https://static.usrfiles.com/ugd/b8c837_1ede4d68659f408ab4f3a4858bdffa19.pdf
    • https://cdn.shopify.com/s/files/1/0428/6794/9724/files/the_belt_and_road_initiative_law_economics_and_politics.pdf
    • https://cdn.shopify.com/s/files/1/0436/9268/7528/files/lenofanokojojipem.pdf
    • https://cdn.shopify.com/s/files/1/0432/2433/4498/files/architectural_draftsman_resume.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_off000056e8.bin
41971167d8d19aa7560405b3471ec0ba9e7d78ca6ef43a74a0cb6a433560c972		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56E8 5328 bytes
font_01_sfnt_off00006904.bin
19bccd656af0a998bcdfed1da08c478d35666650a30c5e8643b45eb90945e6ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6904 14252 bytes

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