Malicious PDF — malware analysis report

Static analysis result for SHA-256 d04a9cdf7ca00929…

MALICIOUS

PDF

50.2 KB Created: 2020-08-30 10:15:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 11c568f1fe916e833252820e3459213a SHA-1: 172e3605151f9af0b3af27ba8f2df7bcd2382cea SHA-256: d04a9cdf7ca009293d3a64e85aa0b6f20505df5899274ddc6a9e3ca4c58f89e4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to game downloads and a URL that matches the malicious redirector. The presence of a 'password-protected archive lure' heuristic suggests that this PDF is intended to trick the user into downloading a password-protected archive, likely containing malware, after being redirected from the malicious link.

Heuristics 4

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.ru/wix?keyword=dragon+ball+z+shin+budokai+2+mod+ppsspp+free+download
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/zaxibemororutivuraxeze.pdf
    • https://cdn.shopify.com/s/files/1/0438/0544/2209/files/pukuxosazabapej.pdf
    • https://cdn.shopify.com/s/files/1/0429/5458/8316/files/counselling_skills_for_working_with_trauma.pdf
    • https://cdn.shopify.com/s/files/1/0433/8358/6977/files/1121119854.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dosoxuwananeworatimuk.pdf
    • https://cdn.shopify.com/s/files/1/0437/1618/2166/files/11329643344.pdf
    • https://cdn.shopify.com/s/files/1/0430/7304/4634/files/parizefesakegi.pdf
    • https://static.usrfiles.com/ugd/253000_266104c9cf284ee3882f716e651dc32b.pdf
    • https://static.usrfiles.com/ugd/5438e3_cfeb8b17270c441f8fca77532704d704.pdf
    • https://static.usrfiles.com/ugd/efb3f0_25edbfa879084599819b842cc50264b8.pdf
    • https://cdn.shopify.com/s/files/1/0437/5488/1175/files/compress_file_size_online_reduce.pdf
    • https://cdn.shopify.com/s/files/1/0433/4505/1797/files/jeluniwipexupureligig.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32773531818.pdf
    • https://cdn.shopify.com/s/files/1/0433/0474/7168/files/lonard_de_vinci_la_joconde_analyse.pdf
    • https://cdn.shopify.com/s/files/1/0431/4277/4938/files/likalobunalefumarub.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_off00006741.bin
92c7751d836661f0a17687f404df8a71c2db6f3eb979d624f2c2fdbdbc773f3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6741 4548 bytes
font_01_sfnt_off0000772f.bin
3acb2668b9d193858af5177c23c2a43a3a6a6355ec8002ed3d1892cde2356238		 pdf-font-stream PDF embedded font (sfnt) at offset 0x772F 5732 bytes
font_02_sfnt_off00008a89.bin
609ab130680c9d757acc63d04899c2b5f9abf9f7b829b639dba4a45f0c6d2c0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A89 10168 bytes
font_03_sfnt_off0000ad23.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD23 4324 bytes

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