Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c05df7c05f27d14…

MALICIOUS

PDF

33.3 KB Created: 2020-08-23 04:04:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86e463018df70a6382a2844ab52827c3 SHA-1: e8655cb00f9aa08a1502ee0825242ed6e4ffb48d SHA-256: 8c05df7c05f27d14025dd3061067c0237c784393a7205b63f24720e40e811ee0
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one URL pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the string 'https://ttraff.cc/pify?keyword=os+bichos+2', which is also listed as a malicious redirector. The presence of numerous PDF links suggests an attempt to distribute malicious content or engage in SEO manipulation for malicious purposes.

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=os+bichos+2
    • http://files.peacepresbyterian.org/uploads/1/3/0/7/130775143/6d926cda8.pdf
    • http://files.countrygirlgiftsok.com/uploads/1/3/0/7/130738620/jigafosipeger_dezobusasinam_bebagixavogolij.pdf
    • http://files.abugslife.blog/uploads/1/3/0/8/130814258/4aa71e3aeb.pdf
    • http://dibadi.nurturingtouchspecialist.com/uploads/1/3/2/6/132696414/malozu-zakosapo-zenogep.pdf
    • http://files.jeskare.com/uploads/1/3/2/7/132710715/7572291.pdf
    • https://cdn.shopify.com/s/files/1/0436/7246/9669/files/nivajumeweboteluvuwabed.pdf
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/95667014409.pdf
    • https://cdn.shopify.com/s/files/1/0428/2862/8135/files/15769323439.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/phonic_song_2_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/appeal_letter_example.pdf
    • https://cdn.shopify.com/s/files/1/0431/1459/4464/files/frozen_2_trailer_video.pdf
    • https://cdn.shopify.com/s/files/1/0431/3464/8474/files/prebles_artforms_12th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/1627/3563/files/birthday_girl_penelope_douglas_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/4309/3660/files/42318709169.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_off00004615.bin
9c3c54ab7feb1add3b5bdda171540ad7b05751bb81ef0ecdb0e5b1d72569205e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4615 4848 bytes
font_01_sfnt_off0000568b.bin
63908e2376fc72642dff9a4b012eb12a36a6199d35c176c0bbb7bb01974df829		 pdf-font-stream PDF embedded font (sfnt) at offset 0x568B 10060 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.