Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e38cf660139e834…

MALICIOUS

PDF

53.9 KB Created: 2020-08-06 01:03:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54d01696794dce1ed847cee91f70e6f2 SHA-1: 287f11258ceff6aad2ebbaa90d68f7ca59d31100 SHA-256: 7e38cf660139e834a61398d508b5bc98fb5f9a522998d6f19da9844d9c8994ff
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDF files, indicating a link farm. One critical heuristic firing identified a link to a known malicious redirector infrastructure at `https://ttraff.cc/pify?keyword=cabinet+ministers+list+2020+pdf`. The document body, though heavily obfuscated, contains text related to 'cabinet ministers list 2020 pdf' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. 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=cabinet+ministers+list+2020+pdf
    • http://files.ebranchllc.com/uploads/1/3/1/6/131607000/divivipapexiko.pdf
    • http://wijalor.gendiesel.com/uploads/1/3/1/8/131856725/nowawujefo_jufumamepefero_wufule.pdf
    • http://files.tellhisstory.org/uploads/1/3/1/3/131398184/kazug-lesipurog-lubil-kadupekafur.pdf
    • http://files.dizacstickers.co.nz/uploads/1/3/1/4/131437832/fenukezun.pdf
    • https://cdn.shopify.com/s/files/1/0432/6519/6197/files/converter_to_jpg_ilove.pdf
    • https://cdn.shopify.com/s/files/1/0437/2152/3349/files/51380033354.pdf
    • https://cdn.shopify.com/s/files/1/0429/2755/4723/files/john_berger_ways_of_seeing_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/kajulimaguluxafu.pdf
    • https://cdn.shopify.com/s/files/1/0437/0753/1432/files/82721866157.pdf
    • https://cdn.shopify.com/s/files/1/0429/2355/7030/files/safap.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/47025307949.pdf
    • https://cdn.shopify.com/s/files/1/0430/6698/2561/files/59478153660.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/beloromawodosuxaso.pdf
    • https://cdn.shopify.com/s/files/1/0434/1877/9815/files/rovorafolajibig.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/jukomaxipan.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_off000069ce.bin
4822087755a973476e265a8d1805bb21e7b5648acfe872101f8a8bfb1efcd28f
pdf-font-stream PDF embedded font (sfnt) at offset 0x69CE 13184 bytes
font_01_sfnt_off00009452.bin
313383e5b00f8765d2fe55be1518a185fd1c3ed9420495db062fa8a7ca4b811c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9452 5508 bytes
font_02_sfnt_off0000a6e5.bin
a1a2b2673d7fcea44ff1f5efe42a397d2b8349e10abce87ec5bab3b6e9f328a5
pdf-font-stream PDF embedded font (sfnt) at offset 0xA6E5 10368 bytes