Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bc409c12e05582c…

MALICIOUS

PDF

48.9 KB Created: 2020-08-23 11:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19205d3344198662bc233d83b6491fe9 SHA-1: 2c69393939a687018c03272fdca2238f4afb5b94 SHA-256: 0bc409c12e05582c1273ccd4f95ad4bb3e32d4e2b473fd8ea1d80a4e40a07879
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to malicious infrastructure, specifically a link farm designed to host numerous PDFs. The document body text and embedded URLs suggest a lure related to a 'platform ticket uk'. While no scripts were directly extracted, the PDF structure and the presence of redirector links indicate an attempt to lead the user to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=platform+ticket+uk
    • http://files.shibuecaribbean.com/uploads/1/3/1/4/131437194/161121.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pezudatilekubad.pdf
    • https://cdn.shopify.com/s/files/1/0435/5643/8165/files/android_10_xiaomi_a2.pdf
    • https://cdn.shopify.com/s/files/1/0428/8443/2038/files/statistical_yearbook_of_vietnam_2020.pdf
    • https://cdn.shopify.com/s/files/1/0429/7474/0639/files/67956129725.pdf
    • https://cdn.shopify.com/s/files/1/0432/3088/8094/files/73713884322.pdf
    • https://cdn.shopify.com/s/files/1/0428/8669/3023/files/58127541981.pdf
    • https://cdn.shopify.com/s/files/1/0448/6758/4162/files/nuriwozivitaki.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/windows_cli_commands_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/3223/9528/files/financial_accounting_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/6809/6661/files/kokifajutaso.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/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ebe.bin
8484549148ca33e690776fc0eab5ff4ed72b527786031194f9300a482407c093		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBE 4272 bytes
font_01_sfnt_off00006dc1.bin
7d8627a4ab893d56fa0f81470f295d842db1a267316dcfc88b750427dbd8d130		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC1 4912 bytes
font_02_sfnt_off00007e5e.bin
ab8ee64594d9912d429005add37a4a69bef6a6d6ea1340d7942ec8b903753cb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5E 10192 bytes
font_03_sfnt_off0000a16b.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA16B 16164 bytes

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