Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaffb88ced1c0e03…

MALICIOUS

PDF

48.0 KB Created: 2020-07-27 22:55:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79518a1915da65338ad9c870b88bbb3b SHA-1: 5fbedc8287a12d7a399024fa7fb682830e6c5e04 SHA-256: aaffb88ced1c0e032dbc60d2daebe9e6c5799339b371e3050b1991c9455b0f13
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.ru, which is indicative of a phishing or scam campaign. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Broadsheet brisbane editor'. The presence of a PDF link farm further suggests an attempt to manipulate search engine results or distribute malicious content. The document also contains a callback lure, consistent with tech-support scams or phishing.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.ru/pify?keyword=broadsheet+brisbane+editor
    • http://files.blanchairstudio.com/uploads/1/3/0/7/130740072/9322379.pdf
    • http://files.yardsoffunwny.com/uploads/1/3/0/7/130739864/3240538.pdf
    • http://files.granderondeangler.com/uploads/1/3/1/0/131070847/sezew.pdf
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/74952262515.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/91135483231.pdf
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/xewapalabevekigofipo.pdf
    • https://cdn.shopify.com/s/files/1/0434/2749/6087/files/jopebotaburepajamivuga.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/28500660107.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.pdf
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/7438174384.pdf
    • https://cdn.shopify.com/s/files/1/0429/8938/7939/files/supotabo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/togew.pdf
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/83277511262.pdf
    • https://cdn.shopify.com/s/files/1/0433/9469/5329/files/62017270509.pdf
    • https://cdn.shopify.com/s/files/1/0434/2074/5893/files/gizizixofuwozulijudasuwu.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_off00007e12.bin
d327b021f39017e30e3a3337ae904f878f622ab9a8ad82f761a96ede5fa48168
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E12 4860 bytes
font_01_sfnt_off00008e84.bin
706616758effb9409ee0b6d89e485737652f169502b8097379881bf7e9d2f70b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E84 10540 bytes