Malicious PDF — malware analysis report

Static analysis result for SHA-256 bffb8e0221185a45…

MALICIOUS

PDF

51.9 KB Created: 2020-08-24 04:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8878d2e77fd49e168334b095804c7952 SHA-1: c969aaaa7cf2739bc9949eb6eda01b14c51e76a6 SHA-256: bffb8e0221185a4537584ac1e58172ad85dab7280987c5015292d35d7143d187
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=indonesia+former+president+wife'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on various domains, including several on Shopify. The document body, though heavily obfuscated, contains the malicious URL and other embedded URLs, suggesting a lure to external malicious content. No scripts were extracted from this sample.

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=indonesia+former+president+wife
    • http://zedunidak.erspamermusic.com/uploads/1/3/2/7/132741073/03339da.pdf
    • http://vegetire.divinetravelservices.com/uploads/1/3/0/9/130969724/f8c0e56c3eeccf.pdf
    • http://files.openclosetshops.com/uploads/1/3/1/6/131606280/viguvodivoma_nirixune_sijinavomawese_fidip.pdf
    • http://files.gemmalofthouse.com/uploads/1/3/1/3/131381540/fivugesawazenul.pdf
    • http://files.southmaydtxcourt.com/uploads/1/3/1/4/131453623/2331700.pdf
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/54636653181.pdf
    • https://cdn.shopify.com/s/files/1/0429/4367/6582/files/anatomia_nariz.pdf
    • https://cdn.shopify.com/s/files/1/0436/0352/5794/files/maps._me_app_for_android.pdf
    • https://cdn.shopify.com/s/files/1/0429/7487/1711/files/makkar_ielts_speaking_topics_january_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/british_english_phonetics_chart.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/bapidebise.pdf
    • https://cdn.shopify.com/s/files/1/0437/6517/0334/files/american_english_file_4_student_book_pdf_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/2888/8217/files/genesixog.pdf
    • https://cdn.shopify.com/s/files/1/0435/8583/1080/files/area_and_perimeter_of_rectangles_worksheets_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/3128/8215/files/contenidos_conceptuales_actitudinales_y_procedimentales.pdf
    • https://cdn.shopify.com/s/files/1/0429/6572/9429/files/bupuxufukorexopinaga.pdf
    • https://cdn.shopify.com/s/files/1/0440/5651/0616/files/4845140844.pdf
    • https://cdn.shopify.com/s/files/1/0465/3380/4182/files/acara_english_curriculum.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ea2.bin
b463960799816c7dd6c777c0c4c5d35aa10621770b5ff3290da47a4ca2d715ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA2 5344 bytes
font_01_sfnt_off00008140.bin
561e17dc9c769e40b322b4879e22c8e51283cf357ab9c221ad8f6b66508138f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8140 4972 bytes
font_02_sfnt_off00009215.bin
2e8c96ac172dbd00c8b8ce43a68e75d8ec1b9d87a8a206a0dccc80cba7552a23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9215 9876 bytes
font_03_sfnt_off0000b3dd.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB3DD 4324 bytes

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