Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbb90317ba420fcd…

MALICIOUS

PDF

48.0 KB Created: 2020-08-20 21:22:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79f7ec7a67113eff2df2517523e96d9f SHA-1: 7d9e1b29175c70a06d09f0418d75a18d7a20f976 SHA-256: cbb90317ba420fcdda4277b48c22331d394d4a63bfdc9affb1e811a9828c49cc
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, specifically pointing to 'https://ttraff.ru/pify?keyword=free+budget+template+personal'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though partially corrupted, contains the same redirector URL and mentions 'Free budget template personal', 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.ru/pify?keyword=free+budget+template+personal
    • http://files.newrichmondwiumc.org/uploads/1/3/1/4/131406977/muvixu_gikolimefa_kezoneb.pdf
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/gejukixekaramupokuvile.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/legevisoxewodixi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5719/2853/files/93235530486.pdf
    • https://cdn.shopify.com/s/files/1/0434/0147/8307/files/keximonasamefos.pdf
    • https://cdn.shopify.com/s/files/1/0431/1577/4108/files/25016405242.pdf
    • https://cdn.shopify.com/s/files/1/0437/0271/4536/files/aesculap_catalog.pdf
    • https://cdn.shopify.com/s/files/1/0447/3477/5445/files/the_double_queen_s_gambit.pdf
    • https://cdn.shopify.com/s/files/1/0436/4392/8726/files/33274530632.pdf
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/63771292771.pdf
    • https://cdn.shopify.com/s/files/1/0432/9376/9894/files/43643103552.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000670a.bin
25fb216b9f81c04d696672644b4c9ea1516483bde761897f5f8d918f26b5da9b
pdf-font-stream PDF embedded font (sfnt) at offset 0x670A 5372 bytes
font_01_sfnt_off0000792d.bin
1fd984aff77483916c53c366dd170416f5abeb974d48da45c158db77682ed207
pdf-font-stream PDF embedded font (sfnt) at offset 0x792D 10644 bytes
font_02_sfnt_off00009dbd.bin
5574da6b353e82d281b331cfb0d5ce524f145a6f41ab8b2c60f06522538da958
pdf-font-stream PDF embedded font (sfnt) at offset 0x9DBD 16324 bytes