Malicious PDF — malware analysis report

Static analysis result for SHA-256 2019c75ef4f07d2f…

MALICIOUS

PDF

48.0 KB Created: 2020-08-23 19:00:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69352ddf9d4aef39f0dac050d513772e SHA-1: 49c25db0ff72ac52013c28e86892a660624d8471 SHA-256: 2019c75ef4f07d2f42ee494d23afb0f131f1046f71d73ab26658c031f2fd5323
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body contains the malicious URL, suggesting an attempt to trick users into clicking it. The primary attack pattern involves leveraging a deceptive link within the PDF to redirect users to malicious infrastructure.

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=java+tutorialspoint+android
    • http://files.dawes.work/uploads/1/3/1/3/131383319/9360717.pdf
    • http://files.younghorseshow.com/uploads/1/3/0/7/130775174/zivepixudow-vinipejawu.pdf
    • http://gegapavi.unibross.com/uploads/1/3/1/6/131606569/wexorepofamok-faliditozi-kapugakuvat-zoreteg.pdf
    • http://files.staggwood.com/uploads/1/3/0/7/130739265/2294382.pdf
    • http://jewiguged.sequatchiecountyband.org/uploads/1/3/1/4/131454762/wekerafuxosu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8042/5370/files/beeruva_movie_telugu_hd.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34597476450.pdf
    • https://cdn.shopify.com/s/files/1/0429/0369/9615/files/29299926406.pdf
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/port_authority_police_exam.pdf
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/90983533081.pdf
    • https://cdn.shopify.com/s/files/1/0436/9340/8409/files/93514161293.pdf
    • https://cdn.shopify.com/s/files/1/0436/4884/3934/files/lotatakesusuvuda.pdf
    • https://cdn.shopify.com/s/files/1/0450/4364/6614/files/oxford_discover_1_grammar_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/8091/6893/files/basic_accounting_notes_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/2547/1400/files/60660452977.pdf
    • https://cdn.shopify.com/s/files/1/0437/4262/5953/files/75069072248.pdf
    • https://cdn.shopify.com/s/files/1/0433/6173/0719/files/luwuxuwonubegosupurobu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1565/0980/files/ionic_vs_covalent_bonding_interactive_guide.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_off000075f1.bin
ee39ed1e7caca56cbe3639fe487ec72a78dd68b935ec1d9738dfca8d6cc654a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x75F1 5000 bytes
font_01_sfnt_off00008707.bin
f48badf88cc4adf571ca3162c80c2ee4f4e39557624d11bf772204e313fc5930
pdf-font-stream PDF embedded font (sfnt) at offset 0x8707 13656 bytes