Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a48e4a410303ac…

MALICIOUS

PDF

41.3 KB Created: 2020-08-02 11:36:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c23602d50dde7675628a56f62f2699d3 SHA-1: 6c5fa13c8ab2cf5c9363348fb43eb26c13e33f5b SHA-256: f7a48e4a410303acdf3e2b3dca6adc3a3f730947a4a8d2a847207da8e8aea07d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link T1059.003 Command and Scripting Interpreter: Windows Command Shell

The PDF contains a malicious redirector link pointing to ttraff.ru, which is a known malicious infrastructure. It also features a large number of embedded links to other PDFs hosted on Shopify, suggesting a link farm for SEO poisoning or traffic generation. The document body and heuristics indicate a lure to execute commands, likely to trick the user into visiting the malicious link or copying/pasting content into a shell.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=create+new+github+repo+from+command+line
    • http://files.exceltherapyconditioning.com/uploads/1/3/1/4/131408024/fesefexoxigof_kepujawafuxuzi_tuvewuviz.pdf
    • http://files.johndorian.com/uploads/1/3/0/7/130738765/6313104.pdf
    • http://files.katiehornphotography.com.au/uploads/1/3/2/6/132683140/364771.pdf
    • http://files.uniquethingsbylingmerth.com/uploads/1/3/0/7/130739227/154474.pdf
    • http://files.supershiftery.net/uploads/1/3/1/3/131379700/5ef4484d4.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/zalifitogexunowuna.pdf
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/20041338057.pdf
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/18225026353.pdf
    • https://cdn.shopify.com/s/files/1/0436/4104/5145/files/dowakobufixokaminopokew.pdf
    • https://cdn.shopify.com/s/files/1/0434/7117/5846/files/xaliwa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/suwizijuguwuwaxitixub.pdf
    • https://cdn.shopify.com/s/files/1/0433/6372/9557/files/terorujuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/7739/3815/files/nufubovenibusopebomawus.pdf
    • https://cdn.shopify.com/s/files/1/0435/3330/3976/files/zirobilifokanakedan.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/19373886978.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7485095273.pdf
    • https://cdn.shopify.com/s/files/1/0432/3514/7933/files/18517499905.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87294954422.pdf
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/33836352619.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/
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/33

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000605d.bin
19fb2e398c5d657d58823e5e42f62c599cb0ab9422c660f3f494138d4b7e3819		 pdf-font-stream PDF embedded font (sfnt) at offset 0x605D 5528 bytes
font_01_sfnt_off0000730b.bin
2c417d2146bfe0e0ad37015051678d39cdd93288556727ced7f9c0021d9464bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x730B 10772 bytes

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