Malicious PDF — malware analysis report

Static analysis result for SHA-256 a800a2986d955e4d…

MALICIOUS

PDF

45.4 KB Created: 2020-08-28 15:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d3612fa9d4da31891c9115364302bf7 SHA-1: 0fbef10b761adeca1521d0f481e3ac458ab50590 SHA-256: a800a2986d955e4db46126c47b0a090152f40a3fd7405fbaecd9c6cf79a7eaa8
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which are to benign Shopify domains but also include several unknown domains. The document body, though heavily obfuscated, contains the target URL, suggesting an attempt to lure the user to a malicious site for phishing or malware delivery. 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.com/pify?keyword=e55+c1+review
    • http://files.countrystitchn.com/uploads/1/3/1/4/131409090/ee5e89d25da3855.pdf
    • http://files.epbemployeehealthcenter.com/uploads/1/3/2/7/132712034/mukotobigolo.pdf
    • http://files.maccarpentry.store/uploads/1/3/2/3/132303189/tisiludirofabuk.pdf
    • http://files.realinboundconsulting.com/uploads/1/3/1/1/131163859/66509.pdf
    • http://files.jmholden.com/uploads/1/3/2/7/132711999/4085731.pdf
    • https://cdn.shopify.com/s/files/1/0437/2375/1575/files/workout_programs_for_mass.pdf
    • https://cdn.shopify.com/s/files/1/0429/9980/8149/files/drive_train_game.pdf
    • https://cdn.shopify.com/s/files/1/0446/8968/6681/files/ascii_line_art.pdf
    • https://cdn.shopify.com/s/files/1/0459/8887/2351/files/dotasoragazufo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4176/7072/files/xemanixav.pdf
    • https://cdn.shopify.com/s/files/1/0441/0372/9304/files/99533744276.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/short_articles_about_education.pdf
    • https://cdn.shopify.com/s/files/1/0433/2129/5006/files/tecumseh_10_hp_engine_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/1129/2827/files/cml_treatment_guidelines_uk.pdf
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/xotote.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_off00006a93.bin
4d9c89e1b4f5a36f374058a0033986b702552fb5cc49f3668f28c2887dfcc9d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A93 4148 bytes
font_01_sfnt_off000078c0.bin
6eb54fb71792b9050ca59027b1f1a211946162ecc7de4a433d695117c82ec5dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x78C0 10012 bytes
font_02_sfnt_off00009b1a.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B1A 4324 bytes