Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed9660564392020…

MALICIOUS

PDF

59.7 KB Created: 2020-09-05 04:28:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b4afc62632e45c5522a18a9aa06cf456 SHA-1: 34cfc193894fc772a8dea8b14d259bcc6ffbba7c SHA-256: 2ed96605643920208cd5b05042bc34014dfdde8a9fdb8ab88df86434a7ca93ce
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the same URL. This suggests the primary goal is to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

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.me/wix?keyword=alcoois+fenois+e+eteres+pdf
    • https://static.usrfiles.com/ugd/0e6328_f6bb6a33c431402d807e3e6d4d1f2eda.pdf
    • https://static.usrfiles.com/ugd/4b68be_4f79ce36d92e47a1ad9aececc50be224.pdf
    • https://static.usrfiles.com/ugd/724fb5_021bd0347e474cad8e160d218d26dc2f.pdf
    • https://static.usrfiles.com/ugd/0fdb6d_d21c3db33d4944739df9ea3ff2b71ed4.pdf
    • https://static.usrfiles.com/ugd/cc14e4_473884094f9c44cdb9fa4c25a2cc5b00.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/72397171300.pdf
    • https://cdn.shopify.com/s/files/1/0431/7426/4993/files/xamarin_android_action_bar_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0432/2036/9576/files/fit2fat2fit_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1479/1068/files/bokuvekugivijateva.pdf
    • https://static.usrfiles.com/ugd/3aee12_24780f79c65e4bc0b2c5089750e00880.pdf
    • https://static.usrfiles.com/ugd/3bcfef_a3b049c2bedd490c9984aaac82eccf5e.pdf
    • https://static.usrfiles.com/ugd/7ef0dc_1918d3be379b4b2097d26ed7d7ed57cc.pdf
    • https://static.usrfiles.com/ugd/23e9be_ffe3e9ec7f8345c98d15859df6b9ab70.pdf
    • https://static.usrfiles.com/ugd/dc8a8e_1e519f05da6b42a7922f8b61126c6a93.pdf
    • https://static.usrfiles.com/ugd/1cc7e8_fef2057c042543e58f91e3253ff42f78.pdf
    • https://static.usrfiles.com/ugd/dcbeda_e161ad38dab7419ea308cd82b3e21923.pdf
    • https://static.usrfiles.com/ugd/fdee49_2c97b43c74a54f0e969264f632f54468.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_off0000ac6e.bin
9d4c3ade03e3f5b1156dbe62f05afc33e5a57b64243b867431dec63f0993cd9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC6E 4928 bytes
font_01_sfnt_off0000bd47.bin
80dbc1996449f297cd0acccf90bc06b8739ba57aab33dfbb4800db74f02f2a0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD47 10672 bytes

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