Malicious PDF — malware analysis report

Static analysis result for SHA-256 d43e0a515b391808…

MALICIOUS

PDF

46.1 KB Created: 2020-09-09 20:52:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93a7d118cd9f3ccdf5636cc83a703718 SHA-1: 9c1fa7cee141c0a9982f0ffe4add2e3e5baf222a SHA-256: d43e0a515b39180859f99c4e9171d2dd1eefbed4897d7b36d688ce0d951da0f2
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'reporting distributions from irrevocable trust' and the malicious URL itself, suggesting a lure to a phishing or malware distribution site. The presence of a PDF link farm heuristic further supports the malicious intent of directing users to external resources.

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=reporting+distributions+from+irrevocable+trust
    • http://lugalidu.dynamicgas.com/uploads/1/3/1/8/131871674/4274130.pdf
    • http://files.kentchancpe.com/uploads/1/3/1/4/131407469/4351254.pdf
    • http://files.sunshinervparkdadecity.com/uploads/1/3/1/0/131069879/344306.pdf
    • https://static.usrfiles.com/ugd/5e81b9_ea0e89f900ca43de9bfc351847efd7f5.pdf
    • https://static.usrfiles.com/ugd/d954c5_14c5c4962ba44fbab625eb592de93fd7.pdf
    • https://static.usrfiles.com/ugd/c5d40f_7f8ff22506bb4470b68c3eb7b814c99a.pdf
    • https://static.usrfiles.com/ugd/b8c837_94ebdc909c7447589fc4695df380f5fd.pdf
    • https://static.usrfiles.com/ugd/0511f5_1881284034924f81a7aff4c8de37963b.pdf
    • https://static.usrfiles.com/ugd/b8c837_1e8dad06ab114994a11c46421c81dde1.pdf
    • https://static.usrfiles.com/ugd/f35da0_6ae297257fcb4995a35ec3c3e1884e48.pdf
    • https://static.usrfiles.com/ugd/ede58b_63209a6bd6094c2e9c41ffd7e4e642d0.pdf
    • https://static.usrfiles.com/ugd/4d935e_e85a864643cc4a1c99c1a020c0269dc6.pdf
    • https://static.usrfiles.com/ugd/73f3b0_79ecba75238d46699a5ad9357a279349.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_off000066f9.bin
7c7287cf9d15ad267b193219cbfe4a95c9f2601aa8217388e6ad8009f1bc8872		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66F9 5564 bytes
font_01_sfnt_off000079d5.bin
03a1e8537da27c0886c3b0744491536140057e696c8a597bad230464fe0ce6d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79D5 10452 bytes
font_02_sfnt_off00009d90.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D90 4324 bytes

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