Malicious PDF — malware analysis report

Static analysis result for SHA-256 82da32fbcf9e23eb…

MALICIOUS

PDF

40.8 KB Created: 2020-08-10 05:42:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7219b37a6194686b112289e5b6597ea4 SHA-1: d72dfca5d41b4cbf2f59730b0fb2dd34445dc898 SHA-256: 82da32fbcf9e23eb9475536101fe2017cdd5954add8d1712f970b2b2787be201
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=golongan+obat+antifungi+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though heavily obfuscated, also contains the same malicious ttraff.com URL. This suggests a phishing or redirection attempt designed to lead users to malicious 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.com/pify?keyword=golongan+obat+antifungi+pdf
    • http://files.riversidetreeserviceco.com/uploads/1/3/1/3/131380397/4fba592.pdf
    • http://files.homecastaways.com/uploads/1/3/0/8/130874613/nevuzimutekuxuzefeto.pdf
    • http://kodaxos.lisadanesin.ca/uploads/1/3/1/3/131381204/df67b6720f.pdf
    • http://files.juliaperdrial.com/uploads/1/3/1/0/131070161/kofixoxerudabe.pdf
    • http://files.biocoreintegration.com/uploads/1/3/1/3/131380591/4215050.pdf
    • https://cdn.shopify.com/s/files/1/0437/2630/7480/files/gevanafinutila.pdf
    • https://cdn.shopify.com/s/files/1/0437/9472/7074/files/la_cambiale_di_matrimonio_libretto.pdf
    • https://cdn.shopify.com/s/files/1/0431/8271/9136/files/41036401136.pdf
    • https://cdn.shopify.com/s/files/1/0429/8801/1673/files/mavafegevikezetipukeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/3958/0575/files/a_level_biology_biodiversity_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/3192/0794/files/assessment_center_ejemplos.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1713/files/99961326282.pdf
    • https://cdn.shopify.com/s/files/1/0435/7026/6273/files/potorikojuw.pdf
    • https://cdn.shopify.com/s/files/1/0435/5912/5153/files/lidabafedijosavilapeziwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7623/1072/files/bateki.pdf
    • https://cdn.shopify.com/s/files/1/0440/5516/7126/files/91479207541.pdf
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/assemblies_of_god_sunday_school_manual.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_off000061f4.bin
e470794364eba9aa008a3568c07ad91c4a028330b281daa1e3345bbde61b16c9
pdf-font-stream PDF embedded font (sfnt) at offset 0x61F4 5104 bytes
font_01_sfnt_off00007368.bin
bd9372dfbfba209f90a6980f7a581bc5161be6f8848dd7cc04b1899184a9ed7e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7368 10264 bytes