Malicious PDF — malware analysis report

Static analysis result for SHA-256 96935e7ef534b9ad…

MALICIOUS

PDF

44.9 KB Created: 2020-08-01 23:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 23cab4523bb1f37bb66e8e3cea9b3ad7 SHA-1: a1f2324d4d1cec0e600c37458a4c0a03b976f17f SHA-256: 96935e7ef534b9ad973f46dcccd4d12338d40c7b02680a3ec4573bbe29e91071
162 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=mysql+export+to_csv'. Additionally, it exhibits a PDF link farm heuristic, with numerous links to Shopify-hosted PDFs, one of which is the malicious redirector. A high-severity heuristic indicates the document instructs the user to copy/paste content into a shell, a common lure for executing malicious commands. The embedded URLs suggest an attempt to redirect users to malicious content or download further payloads.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=mysql+export+to+csv
    • http://files.monawitt.com/uploads/1/3/1/4/131438137/9619889.pdf
    • http://files.chrissieparker.com/uploads/1/3/2/6/132680907/fopuluvitewij.pdf
    • http://files.ocfne.org/uploads/1/3/1/4/131436978/zeboxinarufis_vudedaxurowi_wiwumewuwizu_rakeju.pdf
    • https://cdn.shopify.com/s/files/1/0436/3347/5737/files/89866857660.pdf
    • https://cdn.shopify.com/s/files/1/0437/3751/4133/files/kapuxinetisatuweviweka.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niwaxesajikibulunetegidu.pdf
    • https://cdn.shopify.com/s/files/1/0436/9691/4587/files/40523534422.pdf
    • https://cdn.shopify.com/s/files/1/0427/9799/0055/files/logazowakosinajawefobiwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.pdf
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/depobowozob.pdf
    • https://cdn.shopify.com/s/files/1/0429/6946/4991/files/45030631346.pdf
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/rovunup.pdf
    • https://cdn.shopify.com/s/files/1/0437/0097/7816/files/773175796.pdf
    • https://cdn.shopify.com/s/files/1/0437/4023/3880/files/xaxerobadepuligevolujumer.pdf
    • https://cdn.shopify.com/s/files/1/0430/7379/8298/files/3479090850.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_off00005f2f.bin
4663342f2fb814b148441eab49f504af6f4a49bc7ab38dfa99d2bf52302142d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2F 4712 bytes
font_01_sfnt_off00006f66.bin
a75115b68dffda9b9bc14fef393593e7e80c67d94fbba142af67af293e2db22f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F66 12768 bytes
font_02_sfnt_off000098ac.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x98AC 4324 bytes