Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab5e8cb1af000787…

MALICIOUS

PDF

42.5 KB Created: 2020-08-01 12:33:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 04d46a4c983bc229c52cd33e4502b6dd SHA-1: bf3b85e5532b2ea1383ffbc66db01f4f4a38dbe0 SHA-256: ab5e8cb1af0007873b8fb75e2f1d4e81e3d049fecd4b1a1aba600a23a1b92eea
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF document contains a prominent link to 'ttraff.cc', which is flagged as a malicious redirector. The document body, though partially corrupted, includes the text 'Best tarkov settings' and the malicious URL, suggesting a lure to entice users to click. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content or engage in SEO manipulation for malicious purposes. No scripts were extracted from this sample.

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.cc/pify?keyword=best+tarkov+settings
    • http://files.didsburyjuniors.com/uploads/1/3/2/6/132681824/maxipupamekep.pdf
    • http://files.tevfikmuratyildirim.com/uploads/1/3/1/3/131379591/d2ded2fb00f.pdf
    • http://files.farmacybotanical.com/uploads/1/3/2/3/132302973/xutitogesafa-lixoreriberexik-larowuwonubola.pdf
    • https://cdn.shopify.com/s/files/1/0432/2807/0052/files/zomiginemekugutovofik.pdf
    • https://cdn.shopify.com/s/files/1/0434/0721/2709/files/dakufulepuzimo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5894/files/89254060156.pdf
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/fivoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/3683/4981/files/31307545850.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44368867506.pdf
    • https://cdn.shopify.com/s/files/1/0435/2681/5895/files/55708396132.pdf
    • https://cdn.shopify.com/s/files/1/0433/6982/4407/files/bopamiti.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/11304992634.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/50606916075.pdf
    • https://cdn.shopify.com/s/files/1/0435/9664/4511/files/mekemekifexafav.pdf
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/64560780472.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_off0000697c.bin
0fd3b0805ac1e6b863957598edc520d7bb5de44676b02e4534c6e0f9e3c94488		 pdf-font-stream PDF embedded font (sfnt) at offset 0x697C 4996 bytes
font_01_sfnt_off00007a99.bin
4f373facfe184405985594978c908bf01f23a3840a7900b3ad1a3a2c8c7ec556		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A99 10252 bytes

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