Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd5c4ccbf03e7740…

MALICIOUS

PDF

50.0 KB Created: 2020-08-22 09:06:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6922616b94e35f3ad1ecd493c73cc757 SHA-1: ab4fff297860743e1cbb96d9685c6a94a1dedc04 SHA-256: bd5c4ccbf03e774062c0e038cbe36f4e43d8aedf9a5872f8db9e85dc9907b824
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to redirect users to malicious infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=acompte+formation+professionnelle+2019+batiment, which is likely used to lure victims under the guise of professional training information. The document body itself contains obfuscated text and references to the malicious URL, further supporting the phishing attempt.

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.com/pify?keyword=acompte+formation+professionnelle+2019+batiment
    • http://files.whiteheatfashion.com/uploads/1/3/2/6/132681303/kixogilofebij.pdf
    • http://jeninuv.andquirky.co.uk/uploads/1/3/1/6/131606624/zesenigurero-xegarakuviwu.pdf
    • http://tulikejo.milesalumniatl.com/uploads/1/3/0/9/130969216/7975358.pdf
    • http://files.namimidcentral.org/uploads/1/3/1/3/131379325/rureponokeponusumid.pdf
    • https://cdn.shopify.com/s/files/1/0434/0029/8648/files/20158165542.pdf
    • https://cdn.shopify.com/s/files/1/0428/1666/7815/files/manual_of_montana_vascular_plants.pdf
    • https://cdn.shopify.com/s/files/1/0436/6653/8649/files/welajavo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3492/7513/files/fupiriro.pdf
    • https://cdn.shopify.com/s/files/1/0430/0279/0039/files/50292171705.pdf
    • https://cdn.shopify.com/s/files/1/0431/6318/9412/files/nubofuriwiwijovagese.pdf
    • https://cdn.shopify.com/s/files/1/0434/5495/5672/files/virebemezobonisodi.pdf
    • https://cdn.shopify.com/s/files/1/0440/5837/8392/files/medical_dictionary_application_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/descargar_aplicaciones_gratis_para_android_en_cuba.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lovukapovilelogitolosir.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9434/files/exercicios_de_analise_sintatica.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_off00007f98.bin
58b300ac25e5caa0c5e6e8a5d38cfb699ded9811329d89e95716d02e7f16c2fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F98 5772 bytes
font_01_sfnt_off00009321.bin
a5d6d64e2c3790f06b54dd282f48798513478d58fd4bf8efeaca71cc98409cb6
pdf-font-stream PDF embedded font (sfnt) at offset 0x9321 11896 bytes