Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbf0e1deebfcd731…

MALICIOUS

PDF

126.4 KB Created: 2020-08-07 07:36:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9abf546dd3305ad28268111dadd998ba SHA-1: 152da73ec5e046f0a096f55552b2de1933508276 SHA-256: dbf0e1deebfcd7310ed74a5643024b74866a97e0536fca6e96f2c69da2b2dfbc
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting an urgency lure. The presence of a malicious redirector indicates an attempt to lead the user to a harmful site, likely for phishing or malware delivery.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=cabral+industrial+organization+pdf
    • http://files.orientation.fis.hk/uploads/1/3/0/7/130739570/3271865.pdf
    • http://files.biancamare.com/uploads/1/3/0/8/130813100/4d551b51d.pdf
    • http://files.ctrlaltcrit.com/uploads/1/3/1/8/131856146/jelasa.pdf
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/rarixodetipuredoluxoxabu.pdf
    • https://cdn.shopify.com/s/files/1/0437/9541/5189/files/86572827625.pdf
    • https://cdn.shopify.com/s/files/1/0431/1928/0288/files/99722744034.pdf
    • https://cdn.shopify.com/s/files/1/0427/4618/3847/files/98150620254.pdf
    • https://cdn.shopify.com/s/files/1/0440/8741/0840/files/high_definition_cinematography.pdf
    • https://cdn.shopify.com/s/files/1/0432/8646/2620/files/fobedatozinukejamoxekora.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/81352703277.pdf
    • https://cdn.shopify.com/s/files/1/0433/9492/4694/files/laxosiwezotasitot.pdf
    • https://cdn.shopify.com/s/files/1/0432/4484/7261/files/godubufemu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9072/3487/files/biguzosipeguzalo.pdf
    • https://cdn.shopify.com/s/files/1/0434/9244/2277/files/analytic_geometry_and_calculus_1.pdf
    • https://cdn.shopify.com/s/files/1/0430/2651/4077/files/71476869516.pdf
    • https://cdn.shopify.com/s/files/1/0439/8841/8718/files/autoimmunity_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuzodatusowajukekef.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_off0001b598.bin
cb8d64e53da805eaf3126842c8e43f4628093e5dc5108cac80ccf54833620263
pdf-font-stream PDF embedded font (sfnt) at offset 0x1B598 5304 bytes
font_01_sfnt_off0001c7ab.bin
a517f4c09ef4304aa17960f90c9007d45ed73249fcadf875a1a69a2ad8855621
pdf-font-stream PDF embedded font (sfnt) at offset 0x1C7AB 10660 bytes