Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e993985b22f160f…

MALICIOUS

PDF

41.6 KB Created: 2020-08-14 18:55:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0053d3dd7574bdf5eff44b88cc9e409f SHA-1: eeb12a7ee396b8e23a486eff9f31f112256299e9 SHA-256: 2e993985b22f160fd97a767366b3feaa6ad9c435d5185616e6967222cf8c6abf
150 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, ttraff.com, which is disguised as a passport application form. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to various PDF files, many hosted on Shopify. The primary malicious intent appears to be directing users to the ttraff.com redirector, likely for further malicious activity.

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.com/wb?keyword=child%20general%20passport%20application%20pdf
    • http://muzaz.floridaselectsoftball.com/uploads/1/3/2/8/132814930/bisevisuxebu.pdf
    • http://files.ardsleydaycamp.org/uploads/1/3/1/4/131438539/e43869e.pdf
    • http://files.musick5.net/uploads/1/3/0/7/130775257/tofosuxi-gegaxaj.pdf
    • https://cdn.shopify.com/s/files/1/0437/8794/4096/files/49086859502.pdf
    • https://cdn.shopify.com/s/files/1/0434/0708/1630/files/25689550839.pdf
    • https://cdn.shopify.com/s/files/1/0433/4610/0374/files/rapidex_english_speaking_course_telugu_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/2812/6618/files/94940537972.pdf
    • https://cdn.shopify.com/s/files/1/0428/6549/2127/files/xenoverse_2_ids.pdf
    • https://cdn.shopify.com/s/files/1/0429/2762/0249/files/sunawapikulef.pdf
    • https://cdn.shopify.com/s/files/1/0436/9468/6376/files/90182047945.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/muxuza.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_off0000658a.bin
fe0e6a4c077e02fb1f2a99062bd3739e645638bda4f569ee3b9907e52a53c12b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x658A 5320 bytes
font_01_sfnt_off00007795.bin
192e6695025df67cca53cb23a624da4482613622ee4f7a7e41b6fb2d9c3e9e77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7795 10016 bytes

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