Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa3e876f02892d34…

MALICIOUS

PDF

37.0 KB Created: 2020-08-05 07:26:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56c924e48c7ce3bb87d2b72f803a9b51 SHA-1: 2522a61c87f47ba2b2d6a6af262b86f9a33ede99 SHA-256: fa3e876f02892d349edd19d2885e66709105f000989f78507d0c049c5dabb6b3
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=flats+technical+drawing+for+fashion+pdf' which is likely intended to redirect the user to a malicious site. The presence of numerous PDF links suggests a link farm or SEO poisoning tactic to distribute 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.cc/pify?keyword=flats+technical+drawing+for+fashion+pdf
    • http://files.couplesretreatmarbella.com/uploads/1/3/2/6/132695278/3796269.pdf
    • http://files.peakcutting.com/uploads/1/3/1/8/131871864/de261d28c.pdf
    • http://files.torontochiropracticcentre.com/uploads/1/3/0/7/130775758/8772828.pdf
    • http://files.baltimoreshiatsuacupuncture.com/uploads/1/3/0/8/130813796/bivipavufeto-timubipunad-togoxufu-fozup.pdf
    • https://cdn.shopify.com/s/files/1/0430/4922/2298/files/fowelesovovo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1046/5698/files/butanasaxu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8423/4396/files/clinical_cases_in_anesthesia_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0434/6249/2324/files/seboxiredoto.pdf
    • https://cdn.shopify.com/s/files/1/0436/1935/2740/files/skyrim_black_soul_gem_id.pdf
    • https://cdn.shopify.com/s/files/1/0428/9550/7622/files/states_of_matter_practice_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/elite_dangerous_hud_themes.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/19344699009.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fuxojusi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/xoxebabatex.pdf
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/bisalotogamulazo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3235/4727/files/moxodopufo.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_off000051ad.bin
8c4d06900f4091f4a6b6f326ae9cabd8f377fdce06a5a997cc02f6723ee7f443
pdf-font-stream PDF embedded font (sfnt) at offset 0x51AD 5464 bytes
font_01_sfnt_off00006453.bin
ef435677bd1be99443f8575a4984d6d1554b61f27a4601a6bb60fa10ddb82c4c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6453 10052 bytes