Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cc0b59120994648…

MALICIOUS

PDF

32.4 KB Created: 2020-08-26 23:55:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff1258368d2778ed863ea5f6ce8fba8c SHA-1: c3096c2a35e1966af1bd1bccadd408fa8117d216 SHA-256: 2cc0b59120994648c9529526864507d96d67761cf066a036bfe97d61ccf5c26f
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=motorola+software+repair+assistant+download'. This URL is presented as a download for a 'motorola software repair assistant', a common lure for phishing or malware delivery. The file also exhibits a PDF link farm heuristic, indicating it contains numerous external links, with the primary one leading to a Shopify domain. The document body, though heavily corrupted, contains the malicious redirector URL and a Shopify URL, reinforcing the attack pattern.

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.com/pify?keyword=motorola+software+repair+assistant+download
    • http://files.chambleecharterhighschooljrotc.com/uploads/1/3/1/4/131407247/3058500.pdf
    • http://files.shaochihhung.com/uploads/1/3/1/8/131871994/xokoxiwar.pdf
    • https://cdn.shopify.com/s/files/1/0428/2882/4742/files/tunadelumixorat.pdf
    • https://cdn.shopify.com/s/files/1/0431/8242/4215/files/letajoxavumezalexani.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8077/files/jinolo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7596/0985/files/12107528256.pdf
    • https://cdn.shopify.com/s/files/1/0428/6342/7751/files/advanced_excel_course_file.pdf
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/sonodavixunibaxonir.pdf
    • https://cdn.shopify.com/s/files/1/0432/7207/7475/files/bennett_bolt_trim_tab_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8162/1919/files/42489014061.pdf
    • https://cdn.shopify.com/s/files/1/0432/9147/6133/files/21023571205.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_off00004188.bin
161d3369f40522dabae402f232cc0fea2a6120956d95a251bb929ef93c5ff6b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4188 5132 bytes
font_01_sfnt_off00005324.bin
0c95712afce4759c781f1b5934c5986b2ce2191317f8dc50977f3710c837445d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5324 9868 bytes

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