Malicious PDF — malware analysis report

Static analysis result for SHA-256 23463c2dcd1fb78d…

MALICIOUS

PDF

46.8 KB Created: 2020-08-17 04:37:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56b9f1bb92044f7e9072ea3eed63fb39 SHA-1: a04358a2b89eb02be7e04fd54fe5d0241906ac56 SHA-256: 23463c2dcd1fb78dee683dfb519d09c32be862f48c882bbd24120b66e1e1ee71
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with one critical link pointing to a known malicious redirector infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, contains the text 'Ppt templates powerpoint 2007' and the malicious URL, suggesting a lure to download further malicious content. The presence of multiple benign-looking PDF links hosted on Shopify is likely a tactic to blend in with legitimate content.

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.cc/pify?keyword=ppt+templates+powerpoint+2007
    • http://files.radicalartisticdesigns.com/uploads/1/3/2/7/132740900/080d34.pdf
    • http://files.craftingarrows.com/uploads/1/3/1/4/131437792/dejofekevokag.pdf
    • http://mevotu.happyhealthyyoga.co.uk/uploads/1/3/0/7/130776445/medozuzat_midula_nawuvibawotarig.pdf
    • http://fokeliles.minuscake.com/uploads/1/3/1/3/131380485/zuzokutalipufa.pdf
    • http://rufukil.spacecoastwineguide.com/uploads/1/3/1/4/131483281/ace788d888c8.pdf
    • https://cdn.shopify.com/s/files/1/0431/8845/3533/files/gekaso.pdf
    • https://cdn.shopify.com/s/files/1/0452/6866/4481/files/bio_medical_waste_management_amendment_rules_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/7424/8101/files/26436411171.pdf
    • https://cdn.shopify.com/s/files/1/0436/4327/3369/files/ziradunupoguzijutorewene.pdf
    • https://cdn.shopify.com/s/files/1/0429/0953/2316/files/3039182964.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/zixakizif.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdf
    • https://cdn.shopify.com/s/files/1/0432/8180/9558/files/ponidisojeguzuvezolase.pdf
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/8388845807.pdf
    • https://cdn.shopify.com/s/files/1/0435/4578/8565/files/kegarukiximeridunamevore.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kovutuku.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_off00006be1.bin
220df60497b7c9e0b37c0e6e7b94f1b2caad27993330b4ac1ebc5eecc1532af5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE1 5200 bytes
font_01_sfnt_off00007d78.bin
df1ff55ed3d681b6ceb5324028dfdb472e1c516208246c400782116ffd26477e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D78 10008 bytes
font_02_sfnt_off00009fa4.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x9FA4 4324 bytes