Malicious PDF — malware analysis report

Static analysis result for SHA-256 5238841e57667026…

MALICIOUS

PDF

46.3 KB Created: 2020-08-02 01:07:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae4a3b9d0bda5cf3f3f283e9323585c8 SHA-1: a06d1c9641e657e75e3168bcabdce4bf2a3aae4a SHA-256: 5238841e5766702614abf166909deec42893d08cc93506cc471e421088b216fc
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to PDF files hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=html+form+auto+submit', is identified as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to lure users to malicious infrastructure. No scripts were extracted, limiting the analysis of direct payload delivery.

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=html+form+auto+submit
    • http://files.millstreetcoc.com/uploads/1/3/1/6/131606125/ribug.pdf
    • http://files.tbruederl.com/uploads/1/3/1/4/131438282/luliboxafolev.pdf
    • http://files.allynodonnellrealestate.com/uploads/1/3/0/9/130969368/2d50a1fddc10b1f.pdf
    • https://cdn.shopify.com/s/files/1/0440/4235/4853/files/83866306386.pdf
    • https://cdn.shopify.com/s/files/1/0438/7618/8315/files/65909480869.pdf
    • https://cdn.shopify.com/s/files/1/0430/8851/1130/files/pafifewikenilu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/93809484313.pdf
    • https://cdn.shopify.com/s/files/1/0435/9297/4499/files/walososofe.pdf
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/7571032127.pdf
    • https://cdn.shopify.com/s/files/1/0436/4910/6073/files/forbid_past_tense.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/18040366259.pdf
    • https://cdn.shopify.com/s/files/1/0432/0935/9520/files/world._execute_me.pdf
    • https://cdn.shopify.com/s/files/1/0434/3909/5973/files/watch_avengers_free_online.pdf
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/tikajuvipozenaxegu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/genasapenojajetame.pdf
    • https://cdn.shopify.com/s/files/1/0433/0484/5465/files/saxusup.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000544a.bin
908d4155cb359ae4d671ec12de8f9accc458d8072e06852c1fd8a78471941adc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x544A 4672 bytes
font_01_sfnt_off0000641a.bin
145c1770766a0f7c753ffa575c716dc96876dd07194ab19a5e578051feab2e88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x641A 10684 bytes
font_02_sfnt_off000088ca.bin
b12fd7abebef46c6af06114fd52e3a226bf6873093cd64b6bfea0858fd0ebc42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88CA 16076 bytes
font_03_sfnt_off00009d6d.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D6D 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.