Malicious PDF — malware analysis report

Static analysis result for SHA-256 80c0111615409be4…

MALICIOUS

PDF

38.4 KB Created: 2020-08-06 23:13:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aea88884d65aa932d7e5cc5f83a5c5a1 SHA-1: dca0dc80c70434bec8e1555045d04ef2593cf313 SHA-256: 80c0111615409be4f58283f8c7553b3f071cfdbb7766d8cd04465341543c83ad
150 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'mathematical modelling journal pdf'. The presence of a link farm and a malicious redirector indicates a phishing or credential harvesting attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=mathematical+modelling+journal+pdf
    • http://files.personalspaceproject.com/uploads/1/3/2/7/132740343/piwepapefa-kavijabojexopi-fuwuwumewa.pdf
    • http://files.countryschoolassociation.org/uploads/1/3/0/7/130740249/sifasele_zirurojobiwola.pdf
    • http://files.greenbaywalleyeseries.com/uploads/1/3/1/3/131379820/7ceca068b69f.pdf
    • http://regaragu.blackbeltherbs.com/uploads/1/3/1/6/131637254/dirinobage.pdf
    • http://files.harrisonpublications.org/uploads/1/3/1/4/131482975/ramilar-gutifiwofubevip-pexidan-vabobiluponit.pdf
    • https://cdn.shopify.com/s/files/1/0429/2771/8567/files/wufosajujokato.pdf
    • https://cdn.shopify.com/s/files/1/0438/6720/9893/files/19255879241.pdf
    • https://cdn.shopify.com/s/files/1/0431/6676/1120/files/46508354227.pdf
    • https://cdn.shopify.com/s/files/1/0447/8458/2813/files/aberturas_de_xadrez_para_leigos_james_eade.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37394074323.pdf
    • https://cdn.shopify.com/s/files/1/0430/9739/1261/files/kisugenonofovosude.pdf
    • https://cdn.shopify.com/s/files/1/0432/7184/8100/files/zuzenetiw.pdf
    • https://cdn.shopify.com/s/files/1/0438/5013/7760/files/wexozulejojojaj.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/rulokewa.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/navapazikigafijudeneb.pdf
    • https://cdn.shopify.com/s/files/1/0436/0614/7230/files/30304385077.pdf
    • https://cdn.shopify.com/s/files/1/0431/8307/9592/files/xotowuxibopulawelaku.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_off00005809.bin
bfdddbd0b58a695e54e9e67bf7220003ac83d7291d14566fb3ffc498fa2acda1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5809 5472 bytes
font_01_sfnt_off00006a90.bin
ace38cbf98dc8f23e2b60dfbc4337c7e84f620e2dc21cdef5d07b1a0c55f0647
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A90 10008 bytes