Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae58768d629b88e4…

MALICIOUS

PDF

43.4 KB Created: 2020-08-17 14:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74e3402431cf2a6f5b1bf63e911819ca SHA-1: aba6bc9f340623e8af44af76baf60943339bf12f SHA-256: ae58768d629b88e425a5b89567b6d26de8ce69462b7733d47e67b58523d33e1c
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One of the primary links redirects to a malicious URL, ttraff.cc, which is likely used to deliver a secondary payload. The document body, though heavily obfuscated, contains references to '5x7 envelope template printable' and the malicious URL, suggesting a lure to trick users into clicking the malicious link.

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=5x7+envelope+template+printable
    • http://zazejexo.mchfcoonhound.com/uploads/1/3/0/7/130739704/jidagolatadori_lizit_nebugumumesi.pdf
    • http://sadilowe.c-ford.net/uploads/1/3/1/8/131871991/7141960.pdf
    • http://files.calmundertension.com/uploads/1/3/1/3/131381722/jovuruke.pdf
    • http://files.relaxthemovie.com/uploads/1/3/1/3/131398008/televaj_kidetikevuxeb_pulaxupeguja.pdf
    • http://wapes.jonesparkview.com/uploads/1/3/1/1/131164456/c0e9bf76f7880.pdf
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/87900445592.pdf
    • https://cdn.shopify.com/s/files/1/0445/2201/2831/files/medical_certificate_form_3_and_4.pdf
    • https://cdn.shopify.com/s/files/1/0430/0773/8019/files/politische_philosophie.pdf
    • https://cdn.shopify.com/s/files/1/0437/5710/9399/files/castrol_radicool_sf.pdf
    • https://cdn.shopify.com/s/files/1/0436/4559/9904/files/99308938803.pdf
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/xerejofufa.pdf
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/principle_of_mathematical_induction_ncert.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9837/files/rawefatobolifoxa.pdf
    • https://cdn.shopify.com/s/files/1/0434/2684/0738/files/nukubafelepaniniwimija.pdf
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/boxososidebupetuze.pdf
    • https://cdn.shopify.com/s/files/1/0437/7929/3338/files/papetepiweder.pdf
    • https://cdn.shopify.com/s/files/1/0432/0133/1364/files/thaumcraft_1._7._10_guide.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_off00006b2f.bin
747a5f3377d08054275560b32ce00dd650ea024fe8802dba039c4af983405874
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2F 5164 bytes
font_01_sfnt_off00007cac.bin
1d51ec80e7f8248131c2056661c9fcbb83582fdadac75684fd30a98769e201f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CAC 10432 bytes