Malicious PDF — malware analysis report

Static analysis result for SHA-256 1aa01c9d0e92226a…

MALICIOUS

PDF

42.8 KB Created: 2020-08-30 06:24:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57489ef28f68d35c6191dbc7335521e6 SHA-1: df41b7a9eebc2c1de482ad7235aa9383db3ee274 SHA-256: 1aa01c9d0e92226a82180b85d73a0a2823a7c33b0e073ffddcf99a98bf2cb8e8
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, masquerading as a resource for various PDF documents. One of these links, https://ttraff.com/wix?keyword=arcteryx+heli+guide+jacket, points to a known malicious redirector. This suggests a social engineering attack aimed at directing users to malicious content, likely for further exploitation or phishing. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact lure.

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/wix?keyword=arcteryx+heli+guide+jacket
    • https://cdn.shopify.com/s/files/1/0429/2873/4367/files/the_business_school_by_robert_kiyosaki.pdf
    • https://cdn.shopify.com/s/files/1/0432/5441/5515/files/bertepuk_sebelah_tangan_sudah_biasa.pdf
    • https://cdn.shopify.com/s/files/1/0427/4972/2790/files/45953564671.pdf
    • https://cdn.shopify.com/s/files/1/0430/0524/7647/files/24997544411.pdf
    • https://cdn.shopify.com/s/files/1/0435/4359/3109/files/nice_guidelines_for_diabetes_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0710/files/98977036426.pdf
    • https://cdn.shopify.com/s/files/1/0436/7591/0294/files/holographic_universe_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/1895/2612/files/artritis_reumatoide_criterios.pdf
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/pugetofapinukufimiwivago.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zodotuxufaliga.pdf
    • https://cdn.shopify.com/s/files/1/0428/5336/7975/files/nuduz.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_off000067ee.bin
4512fe0578fe2746864d78c1679bc5ddf0f314952ffdf23ffc155e1860654285		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67EE 5320 bytes
font_01_sfnt_off00007a02.bin
da0d708a8534e0ca7ad5d575ce2b60113fcd88e64749d995bb3739a4942ec6af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A02 10712 bytes

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