Malicious PDF — malware analysis report

Static analysis result for SHA-256 303d1485e6b5bbce…

MALICIOUS

PDF

47.4 KB Created: 2020-07-23 11:39:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e692f69ea081dc987af9d5159de6507 SHA-1: 4bd4e38f66e1f7cc1976c0c7715fb2647a93ff18 SHA-256: 303d1485e6b5bbce638d332f0ff248084a3d0a2a52de73f01f68e84a04d9c173
140 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lead users to malicious content. The document also functions as a link farm, pointing to numerous external PDFs, and includes a callback lure, suggesting a phishing or scam attempt. The presence of a malicious redirector link and the link farm indicate an attempt to distribute or redirect users to malicious sites.

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=bereavement+benefit+application+form
    • http://files.petesmentalhealthtravel.com/uploads/1/3/0/7/130776728/06d4fa357039288.pdf
    • http://files.hogwashfarm.com/uploads/1/3/0/7/130776245/9bcdc.pdf
    • http://files.abaofiowa.org/uploads/1/3/0/8/130814112/2933726.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mirogorozizodixomalejog.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/rikase.pdf
    • https://cdn.shopify.com/s/files/1/0428/9236/1887/files/56913774590.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0938/files/feluvuzolodew.pdf
    • https://cdn.shopify.com/s/files/1/0431/5391/6053/files/48470806278.pdf
    • https://cdn.shopify.com/s/files/1/0430/0151/2090/files/tarow.pdf
    • https://cdn.shopify.com/s/files/1/0433/6232/0536/files/63321137394.pdf
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/10346233868.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26450283228.pdf
    • https://cdn.shopify.com/s/files/1/0434/0505/0021/files/pifulegolumatigenutik.pdf
    • https://cdn.shopify.com/s/files/1/0430/0088/9507/files/raxemupetoboxokugilizos.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_off00007da6.bin
3e5dedd2eb56857028385b22f1589573d00e3417c6c50dfda27ca516543fff2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA6 5020 bytes
font_01_sfnt_off00008e96.bin
850b98c4f4d6152296cc3415c5306a20c3b8e0d8f2c008ad54f9eb8e656cbc89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E96 9948 bytes

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