Malicious PDF — malware analysis report

Static analysis result for SHA-256 57843a8c0e554840…

MALICIOUS

PDF

59.5 KB Created: 2020-08-06 23:21:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3da6ca5be8eb08aaa2259f53f197fd5e SHA-1: c03e0c74f04c75c19ba6eb2474d1b5648172f6ce SHA-256: 57843a8c0e554840ec4cb5160066915e6f4e5a31f7ecee04b9968d633ea1f731
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=list+of+companies+in+pakistan+with+email+addresses+pdf, which likely serves as a lure to a phishing page or malware download. The document body, though heavily obfuscated, contains references to 'list of companies in pakistan with email addresses pdf' and the wkhtmltopdf tool, suggesting a deceptive pretext for the malicious links. The presence of many external PDF links also indicates a link farm strategy.

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=list+of+companies+in+pakistan+with+email+addresses+pdf
    • http://files.enmuchristianchallenge.org/uploads/1/3/2/6/132695492/bexosozenijel.pdf
    • http://files.royalbeebeauty.com/uploads/1/3/1/8/131857334/0a28bbf.pdf
    • http://files.barbarasuebrodie.com/uploads/1/3/2/8/132814073/1635928.pdf
    • http://files.petitesweetshouse.com/uploads/1/3/1/8/131856290/9988602.pdf
    • https://cdn.shopify.com/s/files/1/0431/6597/4690/files/8881474161.pdf
    • https://cdn.shopify.com/s/files/1/0429/2853/7753/files/32731900436.pdf
    • https://cdn.shopify.com/s/files/1/0428/9232/9119/files/jogakujevirovagofelumu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/29631768948.pdf
    • https://cdn.shopify.com/s/files/1/0439/8468/3166/files/86480506435.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/tamil_bible_free_download_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0431/7167/6314/files/57524087322.pdf
    • https://cdn.shopify.com/s/files/1/0429/7929/5385/files/sevtech_server_setup.pdf
    • https://cdn.shopify.com/s/files/1/0446/0855/3123/files/keyboard_special_characters.pdf
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/vurolitelataborijomozapo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/78693570873.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_off00009d09.bin
1b14d755551c0e07840fa9a848aeb667c50d16f989f68545367b96ede06fb45b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D09 5492 bytes
font_01_sfnt_off0000afa9.bin
296128ecd367e74d061736c8aea96835690c9c85de2dc8f874c81b5f40e92ca1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFA9 15964 bytes

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