Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4124b99108190f1…

MALICIOUS

PDF

48.2 KB Created: 2020-09-17 22:01:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95822bc78009960f2662f94b51a4de06 SHA-1: a5276bb9cd8bc78e42e53dec6c44eb693a732aa0 SHA-256: f4124b99108190f1094c21b9e618b9fc3a9a407b8a48f7801de9e7e7d5d408fa
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=siesta+key+weather', suggesting a lure related to weather information. The presence of numerous PDF links indicates an attempt to distribute content or traffic to various destinations, likely for SEO manipulation or to host further malicious content.

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=siesta+key+weather
    • https://233a2067-6f41-4187-b952-28e68d9e478e.filesusr.com/ugd/97368a_780722c099304a2099e0767eed3a3499.pdf?index=true
    • https://badfc906-e3c7-4ba2-862a-d955fbb66b65.filesusr.com/ugd/b1b3ad_18dbdab46bb443eda3d718a16ebf149c.pdf?index=true
    • https://2af2e4f6-a312-4b48-a142-2c15d1fd9054.filesusr.com/ugd/98d639_75d35fa5d9704136af6b55083e940ce4.pdf?index=true
    • https://d7eee598-d4fd-4889-a95c-31ad9b8c3f10.filesusr.com/ugd/9904c2_97752e3d6bb84854bd179ef7bf51c806.pdf?index=true
    • https://dfafa0aa-4943-4f0a-a861-fccb8caaf662.filesusr.com/ugd/24d943_4a69adc4d49a4016919fc61449d8887d.pdf?index=true
    • https://c992adc9-9ba3-4ebb-80ad-f1fde9f694d3.filesusr.com/ugd/610d21_95bfe831adba4547a869c5c6d645d0c0.pdf?index=true
    • https://e0f7eedd-6dc7-4954-9d07-ecf5f7bd8757.filesusr.com/ugd/f9fac6_b5b10e0c39cd49a9af554452aded4fab.pdf?index=true
    • https://6c1aca35-96e6-4ee2-b511-588faebf2fbc.filesusr.com/ugd/3d0627_6af7765780be4bb8917eafd16ed090ac.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0437/1100/4821/files/23253202683.pdf
    • https://cdn.shopify.com/s/files/1/0428/2905/4118/files/everyday_use_literary_analysis_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/6911/1448/files/selokofupo.pdf
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/vuziza.pdf
    • https://cdn.shopify.com/s/files/1/0430/0328/1571/files/vonedidubo.pdf
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/miwuf.pdf
    • https://cdn.shopify.com/s/files/1/0463/8644/6491/files/lego_corvette_c6.pdf
    • https://cdn.shopify.com/s/files/1/0435/0168/2843/files/bermuda_triangle_movie_2017_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0429/5517/8150/files/migamusufowabakiramuwino.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_off00007e97.bin
685631b69c8e3afd6a05f8ebdf76a23f9597f8134796790973ed4dc8e7c704e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E97 5100 bytes
font_01_sfnt_off00009000.bin
670408b40be2dcc4e65ad127647ef8131155dfcf949c377d415f333de38ed30f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9000 10548 bytes