Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d6bd6757c92e4d4…

MALICIOUS

PDF

44.0 KB Created: 2020-08-24 15:19:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9666f62492e4b81c04a87e9f0eaaedfe SHA-1: a3767c5421f2eb492a8bac489cc59413a24b9497 SHA-256: 1d6bd6757c92e4d43ba99b8010232dc1424aef48589b9d948aa8adf4a2cc3f4f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains references to a 'Dragon naturally speaking commands cheat sheet' and includes the malicious URL. This suggests a social engineering attempt to trick the user into visiting a malicious site, likely for further exploitation or credential harvesting. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.ru/pify?keyword=dragon+naturally+speaking+commands+cheat+sheet
    • http://gowanexo.anwarhadi.com/uploads/1/3/0/7/130739593/safamawiligiwub_nixam_gomupunodi_mizebo.pdf
    • http://files.inthedeadofwinter.com/uploads/1/3/1/4/131437515/8387137.pdf
    • http://files.stacyjfox.com/uploads/1/3/1/4/131454216/vegiz-sodugiju.pdf
    • http://xibup.b4rnpr.org/uploads/1/3/0/7/130738632/8ddd105779b8.pdf
    • https://cdn.shopify.com/s/files/1/0459/2546/6279/files/dukesetedezalar.pdf
    • https://cdn.shopify.com/s/files/1/0429/3869/5846/files/exam_cram_property_and_casualty.pdf
    • https://cdn.shopify.com/s/files/1/0434/0757/3149/files/leadership_qualities_in_healthcare.pdf
    • https://cdn.shopify.com/s/files/1/0439/4100/3432/files/environmental_monitoring_and_analytical_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0435/8828/8670/files/the_spoken_bible_free.pdf
    • https://cdn.shopify.com/s/files/1/0438/8877/1227/files/fnma_stock_message_board.pdf
    • https://cdn.shopify.com/s/files/1/0454/2693/3916/files/normalidad_anormalidad.pdf
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/89388951433.pdf
    • https://cdn.shopify.com/s/files/1/0438/9660/2779/files/50781210925.pdf
    • https://cdn.shopify.com/s/files/1/0436/2734/8121/files/nrc_motors_redlands_ca.pdf
    • https://cdn.shopify.com/s/files/1/0427/9717/0847/files/wizawubijavanixagolomo.pdf
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/70677676578.pdf
    • https://cdn.shopify.com/s/files/1/0432/0067/5995/files/tilebajofajaxabafi.pdf
    • https://cdn.shopify.com/s/files/1/0438/4735/2480/files/auslan_sign_language_alphabet.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_off00006691.bin
d6ad67ae8599cdc84fd3b0dc1b5a0a4ffc8e040c6654b3de8b684344074e7652
pdf-font-stream PDF embedded font (sfnt) at offset 0x6691 5652 bytes
font_01_sfnt_off000079aa.bin
3b36e21d8501c36e71b95fc0c868db785762048d845e74944a60c9a6753dea31
pdf-font-stream PDF embedded font (sfnt) at offset 0x79AA 12700 bytes