Malicious PDF — malware analysis report

Static analysis result for SHA-256 acb5db325bec8565…

MALICIOUS

PDF

64.6 KB Created: 2020-08-22 10:50:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6753cc9b5a65981fdbf0387a72f15d09 SHA-1: 9929643007b3197a1223e548388b48fc8fe65acd SHA-256: acb5db325bec85655d359426da2e6b9d60219f06c513d008186e8525357c2df5
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is disguised as a formal definition. This redirector is likely used to lead the user to a malicious site or download further malware. The PDF also contains a large number of links to other PDFs hosted on Shopify, which is characteristic of SEO link farm abuse, potentially to boost the ranking of the malicious redirector. No scripts were extracted from this sample.

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=arc+length+formal+definition
    • http://jizezeles.beautiful-astrology.com/uploads/1/3/2/6/132695663/tuzax_deparusesof.pdf
    • http://vuxulapul.usasoftballmissouri.net/uploads/1/3/0/7/130739564/nelujebad.pdf
    • http://files.ashleighnicoleevents.com/uploads/1/3/2/3/132303410/jujubekejora-mozana-pamiwewefe.pdf
    • http://samiv.princealbert.cjsclimbandplay.com/uploads/1/3/2/6/132696158/menopuvotef-nenesudiwes-vebososa-vevawovosov.pdf
    • http://files.vixenpromakeup.com/uploads/1/3/2/6/132682826/piwadawimugi-felukel-jazedelazevoseg.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81667611697.pdf
    • https://cdn.shopify.com/s/files/1/0437/7945/7173/files/fewafoxub.pdf
    • https://cdn.shopify.com/s/files/1/0431/5666/8565/files/epfo_employer_registration.pdf
    • https://cdn.shopify.com/s/files/1/0429/3473/0911/files/51625897224.pdf
    • https://cdn.shopify.com/s/files/1/0430/9732/5732/files/kolisi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/analyste_financier_cours.pdf
    • https://cdn.shopify.com/s/files/1/0437/2214/5943/files/ain_t_i_a_woman_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0440/9065/4870/files/inventory_management_template.pdf
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/xemodezuwosutoneka.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34456372212.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_off00009c70.bin
031d41b769476309fba83963016cad038950dab32fc3fb9d1066055194d30783
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C70 5244 bytes
font_01_sfnt_off0000ae0c.bin
6ea4b45df6e9452fa6ae5d7fb3a6dbf3ba9251e696de13833ffa204e143c3511
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE0C 15484 bytes
font_02_sfnt_off0000dec1.bin
e5a437922c2ad227e942c64db92331b816634909c055123db38b82a40b6cb327
pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC1 16360 bytes