Malicious PDF — malware analysis report

Static analysis result for SHA-256 49a25a91cf38acf3…

MALICIOUS

PDF

58.9 KB Created: 2020-08-22 10:29:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80a76bcc042483874d3b0f40521e544f SHA-1: 8cc33ea93049ee73b3530eb3d433b46ddd69fcae SHA-256: 49a25a91cf38acf39ea8bf8651d09366d5b54b387b9f933f857f9e7629a40a73
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for a 'graphic designer cv example pdf'. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning attempt to drive traffic to the malicious redirector. No scripts were extracted, limiting further analysis of payload delivery.

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=graphic+designer+cv+example+pdf
    • http://kodujiz.shantyshackbrewing.com/uploads/1/3/2/8/132814969/182030.pdf
    • http://files.cozykidsembroidery.com/uploads/1/3/1/4/131409170/ninebafakafekip.pdf
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/79592957431.pdf
    • https://cdn.shopify.com/s/files/1/0430/8339/9321/files/felejo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3037/1739/files/97245923337.pdf
    • https://cdn.shopify.com/s/files/1/0429/5163/9196/files/noxexevovunedipo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/principles_of_geomorphology_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9488/files/psychology_wade_11th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0435/5050/7167/files/68456007049.pdf
    • https://cdn.shopify.com/s/files/1/0429/2801/3475/files/simile_practice_worksheets_middle_school.pdf
    • https://cdn.shopify.com/s/files/1/0433/9843/0876/files/leadership_dubai_style_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/3161/7945/files/catechesi_tradendae_english.pdf
    • https://cdn.shopify.com/s/files/1/0433/4016/9384/files/69750077710.pdf
    • https://cdn.shopify.com/s/files/1/0431/4388/9057/files/wapinurimijorage.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000086d5.bin
e211f2d6e0d1bf1fd17bd5150bc2724fb7c0f1d37b1c69b855d9dcad8de34ab0
pdf-font-stream PDF embedded font (sfnt) at offset 0x86D5 2952 bytes
font_01_sfnt_off00009163.bin
4281a3871c77936ad08ee2fa64f6b06e17566266890091d1292741f7ee6ee519
pdf-font-stream PDF embedded font (sfnt) at offset 0x9163 5728 bytes
font_02_sfnt_off0000a4c9.bin
3796b77524725edc2f270bdc6d3c64d8cd3fc7bea81d1f441d9ed5afb2169bfd
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4C9 10580 bytes
font_03_sfnt_off0000c91b.bin
d97a302ae1a3be1fab6679d5fadb1988834e2c6c6e580e4b92b45d2a76076130
pdf-font-stream PDF embedded font (sfnt) at offset 0xC91B 16120 bytes