Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb14437a79278913…

MALICIOUS

PDF

56.5 KB Created: 2020-08-31 23:22:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ee3c421e93f2b9c65e1dec8a79bab31 SHA-1: 6bf9bdb5f78aedecb8a220db91694b9303bc57b6 SHA-256: bb14437a79278913c76ec582adbe7dbb36684293424f45d8ce118f0d7af42036
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a known malicious redirector, ttraff.cc. The document body, though heavily obfuscated, contains the text 'Call for papers conference template' and the malicious URL, suggesting a lure to a phishing or scam page. The PDF structure and embedded links indicate a social engineering attack aimed at redirecting users to 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=call+for+papers+conference+template
    • https://cdn.shopify.com/s/files/1/0430/6970/2306/files/74921257144.pdf
    • https://cdn.shopify.com/s/files/1/0437/5327/5546/files/gorazikagasisidenovi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2739/8807/files/gijarinogimuxox.pdf
    • https://cdn.shopify.com/s/files/1/0434/7386/2821/files/fexonedetugafopewidebimis.pdf
    • https://cdn.shopify.com/s/files/1/0428/3462/4668/files/badukagegejixolademo.pdf
    • https://cdn.shopify.com/s/files/1/0432/1129/2827/files/lightroom_app_free_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0429/7519/9391/files/bsc_math_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0434/5217/0406/files/public_relations_strategies_and_tactics_11th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0463/0754/1149/files/22427383764.pdf
    • https://cdn.shopify.com/s/files/1/0428/3547/6636/files/72110530932.pdf
    • https://cdn.shopify.com/s/files/1/0436/0817/8845/files/75272689821.pdf
    • https://cdn.shopify.com/s/files/1/0441/3816/8472/files/68121766301.pdf
    • https://cdn.shopify.com/s/files/1/0428/3462/4679/files/97335554957.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_off000091a2.bin
643f11ec3c266365209072bc8a0cb51e3f0d78e170a8045a3dc0fa45a79803ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91A2 4924 bytes
font_01_sfnt_off0000a248.bin
ebd9f2607804a9fd99379fcb89b0956bef933f612cc010ae08ad1e8674259702		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA248 10800 bytes
font_02_sfnt_off0000c6ea.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC6EA 4324 bytes

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