Malicious PDF — malware analysis report

Static analysis result for SHA-256 26ab07497ee414c4…

MALICIOUS

PDF

41.2 KB Created: 2020-08-14 01:31:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f27d3fda87eb7877038d0f91cde231dc SHA-1: 7dada21b0bbc7abb6bd63074cd027314998bb0b6 SHA-256: 26ab07497ee414c477eadb9f71618e1668e3ba410cc2a745738b18365df4aaab
162 Risk Score

Malware Insights

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

The PDF file contains a link farm pointing to numerous external PDFs, with one link identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'upbeat and inspiring corporate music' and a URL that appears to be part of a scam lure. The presence of a malicious redirector and the advance-fee scam lure strongly suggest this document is designed to trick users into visiting malicious sites.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=upbeat+and+inspiring+corporate+music
    • http://jupowugew.maconmedicalgroup.com/uploads/1/3/2/6/132681670/4010679.pdf
    • http://kedipato.elemdesign.com/uploads/1/3/0/7/130739349/zabogefomuliwalud.pdf
    • http://zinifewaw.paulgreenwoodactor.com/uploads/1/3/0/7/130739553/jiworivujeditisepe.pdf
    • http://rikave.chelseamwest.com/uploads/1/3/1/3/131383377/nemirenunejepifogote.pdf
    • https://cdn.shopify.com/s/files/1/0428/9452/4579/files/78199884573.pdf
    • https://cdn.shopify.com/s/files/1/0440/5798/5189/files/how_to_turn_off_screensaver_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0431/4093/9933/files/xetomot.pdf
    • https://cdn.shopify.com/s/files/1/0433/8250/5628/files/76287615346.pdf
    • https://cdn.shopify.com/s/files/1/0427/5326/1724/files/waxukelilitixozono.pdf
    • https://cdn.shopify.com/s/files/1/0438/5406/9910/files/balanza_de_pagos_costa_rica.pdf
    • https://cdn.shopify.com/s/files/1/0441/1208/5144/files/xedok.pdf
    • https://cdn.shopify.com/s/files/1/0437/8466/7287/files/80238562836.pdf
    • https://cdn.shopify.com/s/files/1/0432/3459/0888/files/33254804398.pdf
    • https://cdn.shopify.com/s/files/1/0433/7713/1683/files/basic_life_support_provider_manual_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/4207/7852/files/77041028297.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wupukibasabozuxijixosi.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_off00006109.bin
2bfd5bfbef4093b0a4975e6cab32aa09d82561d174b3d50772d97ee840a928f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x6109 5492 bytes
font_01_sfnt_off00007387.bin
db71f4fcb521a5e09b845f862cf059b089b90111f62928765f7e8606722306dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7387 10640 bytes