Malicious PDF — malware analysis report

Static analysis result for SHA-256 2672a13167ff2a6c…

MALICIOUS

PDF

45.9 KB Created: 2020-08-29 19:21:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bced862101e5e5e9186f15ec76d05ae5 SHA-1: d3f1185abe9254fe9c600d4e46ed8383af403662 SHA-256: 2672a13167ff2a6c13249b604a434893ebcda1084ec689bd03439d1d3b9322da
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a malicious site. The document body contains text that appears to be a song title, possibly as a lure, and numerous links to Shopify-hosted PDFs, likely part of a link farm to improve SEO for the malicious redirector. No scripts were extracted, and the PDF structure itself does not indicate specific exploit techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=yine+g%25C3%25B6nl%25C3%25BCm+karard%25C4%25B1+akor
    • https://cdn.shopify.com/s/files/1/0432/2227/0114/files/dimo_video_converter_ultimate_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0432/7263/4533/files/bugutosonewudisitetutiwar.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/sawiwemolol.pdf
    • https://cdn.shopify.com/s/files/1/0432/6745/7188/files/taxmann_ca_foundation_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/1238/1079/files/tubigowisaxedikoduvanob.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.pdf
    • https://cdn.shopify.com/s/files/1/0431/2770/1655/files/74565938793.pdf
    • https://static.usrfiles.com/ugd/b8c837_9d9d5698e3e848f6a014274a835a8a12.pdf
    • https://static.usrfiles.com/ugd/b8c837_9545fc83364849ceb61819afe2b5c65b.pdf
    • https://static.usrfiles.com/ugd/b8c837_e6a1dd58cfee42ee9a569df62f8afcd9.pdf
    • https://static.usrfiles.com/ugd/b8c837_32b88497fe0d4453ae700cd695b252f5.pdf
    • https://cdn.shopify.com/s/files/1/0428/2309/0343/files/29450008733.pdf
    • https://cdn.shopify.com/s/files/1/0432/5592/2852/files/72977475898.pdf
    • https://cdn.shopify.com/s/files/1/0433/7238/0318/files/85726004813.pdf
    • https://cdn.shopify.com/s/files/1/0436/6408/1046/files/baixar_aplicativo_para_pc.pdf
    • https://cdn.shopify.com/s/files/1/0461/8292/4441/files/44323628429.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_off00005393.bin
facc947c02dacd31fbf022915f71e875220d9098664f144abd00ba4f26af172a
pdf-font-stream PDF embedded font (sfnt) at offset 0x5393 7720 bytes
font_01_sfnt_off00006d2a.bin
9673ac33c9632367b3ac54565341583380aa873290232fd1a2ea2b135ed56c6c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2A 5284 bytes
font_02_sfnt_off00007e87.bin
6213748a53ad56b3a3a91e16227b32c835a67162e8622f3aa6948141f4acd707
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E87 14056 bytes