Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7a2409d9676c4aa…

MALICIOUS

PDF

40.2 KB Created: 2020-09-01 03:23:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59c4eac59545c8df474a5cb290ba3fde SHA-1: 5f3b6f8d683ecde423ba179b481fa7828b695a42 SHA-256: d7a2409d9676c4aa6c8c5fd52b42fc37f3339c044e46ab111914544406480959
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=bccm+form+15'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs. The document body, though heavily obfuscated, contains the malicious URL and references to 'bccm form 15', suggesting a lure. No scripts were extracted from this sample.

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.me/wix?keyword=bccm+form+15
    • https://static.usrfiles.com/ugd/dc98cc_df7e25c9522c47a3911083d591ef0dc3.pdf
    • https://static.usrfiles.com/ugd/5af86b_590458d289c843a9b2168cc4cc176f7e.pdf
    • https://static.usrfiles.com/ugd/b11f6d_9539d30dec8946d28b98587d67f37e81.pdf
    • https://static.usrfiles.com/ugd/7e0eb0_5cd2dd12e080406b85480ce8ed8b437a.pdf
    • https://static.usrfiles.com/ugd/6f53d7_b50f3be7339348bdb7f80b390e7c005c.pdf
    • https://static.usrfiles.com/ugd/eb6612_5ec2a127da6f49b58ccc38e25ccf13d1.pdf
    • https://static.usrfiles.com/ugd/ade4e6_2e8fc0d516494f3ca31da70c6c5d2c5a.pdf
    • https://static.usrfiles.com/ugd/2ac701_f6680c51799a406caa1473a3ba6a412e.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gipal.pdf
    • https://cdn.shopify.com/s/files/1/0432/6329/5654/files/circuit_board_design.pdf
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/virginia_license_query.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/universal_studios_orlando_mapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4492/0726/files/62458701099.pdf
    • https://cdn.shopify.com/s/files/1/0433/9872/5793/files/maharashtra_board_11th_biology_textbook_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/2442/4853/files/25658621775.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_off00005ffb.bin
f285578e8da16f33606552d979875915048fc8e90bba375699cf10213c122ee8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFB 4832 bytes
font_01_sfnt_off00007065.bin
7e069894a301208ca801728fa4639858f03642d8ad94da19bc92562789b7730f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7065 10668 bytes

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