Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fa297f83cf3a697…

MALICIOUS

PDF

37.3 KB Created: 2020-08-13 12:49:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64a4403f76182faa524033131268706b SHA-1: 8a2d4d3c92530683b8eb9ce04176d6d25f06b95a SHA-256: 9fa297f83cf3a6976bccfb76d09bbbfb574de55ced9473e248a1f086434b2421
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains numerous links, including one identified as a malicious redirector. The document body, though partially corrupted, contains text and URLs that suggest a lure for users to click on links, potentially for malicious purposes. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick users into downloading or navigating to malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=complete%20holy%20quran%20with%20urdu%20translation%20pdf
    • http://lewelo.hiatthallconsulting.com/uploads/1/3/2/6/132695569/8019720.pdf
    • http://files.howesenglish.com/uploads/1/3/0/9/130969446/faneporugukuji_sadujopenosaner_loxigulufak.pdf
    • http://files.wwhomesteaddairy.com/uploads/1/3/0/8/130813427/wabizafe.pdf
    • http://mokilefe.scottconklinviolin.com/uploads/1/3/0/7/130775320/wibonuvexonefit-dunewaf-lemevuda.pdf
    • https://cdn.shopify.com/s/files/1/0436/9183/5547/files/bufilol.pdf
    • https://cdn.shopify.com/s/files/1/0431/6528/6564/files/pifovigow.pdf
    • https://cdn.shopify.com/s/files/1/0431/4877/1488/files/car_payment_agreement_letter.pdf
    • https://cdn.shopify.com/s/files/1/0431/8747/0494/files/49422247878.pdf
    • https://cdn.shopify.com/s/files/1/0431/3759/7591/files/manajemen_sumber_daya_manusia_simamora.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.pdf
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/sakemofafojupijepujotiwo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8775/7461/files/moxep.pdf
    • https://cdn.shopify.com/s/files/1/0437/9901/9682/files/10061781944.pdf
    • https://cdn.shopify.com/s/files/1/0435/6712/0539/files/castlevania_symphony_of_the_night_familiars.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/kakaluvapesupisi.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/62105390848.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004649.bin
3b8163f71e2c6a92570c589c8f31e9668f11d2aee8710888359059d8f08b5020
pdf-font-stream PDF embedded font (sfnt) at offset 0x4649 5504 bytes
font_01_sfnt_off000058eb.bin
328aa9784ec714786cd564ae1d8e73504ecd5435d7e2d3afa5ee1276542b8833
pdf-font-stream PDF embedded font (sfnt) at offset 0x58EB 9704 bytes
font_02_sfnt_off00007a0e.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0E 4324 bytes