Malicious PDF — malware analysis report

Static analysis result for SHA-256 a873c8f411ca149b…

MALICIOUS

PDF

71.0 KB Created: 2020-07-30 05:31:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d634033667a628aae3d0aca01eabe8fb SHA-1: 418ba461d14b11023ea46ee7c50a3d86e0db02b3 SHA-256: a873c8f411ca149bb2c8dffd76568d4f41d234cb2ddf0e38d17be32ce7dad91e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to traff.ru. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify, likely for SEO manipulation or to obscure the final malicious destination. The presence of a 'LOLBin run command' heuristic suggests that the document may also contain instructions or embedded scripts that leverage Windows execution tools to facilitate the malicious redirection or payload delivery.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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/pify?keyword=integration+by+reduction+formula+pdf
    • http://files.livingwetoday.com/uploads/1/3/0/8/130814411/lasalekug.pdf
    • http://files.pstransport.net/uploads/1/3/1/4/131453114/jefuzonadela.pdf
    • http://files.elkfordcurling.ca/uploads/1/3/0/9/130969192/b98df.pdf
    • http://files.trilogyplayerstheatre.com/uploads/1/3/2/6/132696174/bc43030108543b.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/zaripibamowowivos.pdf
    • https://cdn.shopify.com/s/files/1/0431/2160/6818/files/10914384844.pdf
    • https://cdn.shopify.com/s/files/1/0432/0280/5921/files/lusimugapudav.pdf
    • https://cdn.shopify.com/s/files/1/0427/7541/2902/files/86421944414.pdf
    • https://cdn.shopify.com/s/files/1/0433/3839/9912/files/luvukeguxuwidusov.pdf
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/filedujexitumo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6590/9160/files/15500244987.pdf
    • https://cdn.shopify.com/s/files/1/0427/8219/5879/files/89992166990.pdf
    • https://cdn.shopify.com/s/files/1/0428/7306/1532/files/gelizo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62114329075.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mipubafuminidumef.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_off0000b3f0.bin
249a94f5b0874a052842318ede96f4e14f3efde0ac95297c07ce4fa6ecb7e15b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB3F0 5360 bytes
font_01_sfnt_off0000c60e.bin
8150867d06ad63e2595ad36c4bb64e9c2677f24cb547c5bf611fd5481cd6337e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC60E 15976 bytes
font_02_sfnt_off0000f7ff.bin
46b377b4107ac445b0e1ea027efedef7805138f04839a41f1c35b47f7151990f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF7FF 16436 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.