Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1430716b9e71e4…

MALICIOUS

PDF

41.5 KB Created: 2020-08-04 18:14:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e5e19da5c673b7a51567187d073c445 SHA-1: 12d5145490e7234e0109a26fb4c500f871048c25 SHA-256: 5a1430716b9e71e460d38bb242c820c6134d31cc461ab0376a9e919e705a9912
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate study material, but the primary link redirects to a known malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, indicating the document's purpose is to lure users to a potentially harmful site. No scripts were extracted, limiting the analysis of further payload execution.

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.ru/pify?keyword=important+questions+for+class+12+hsc+biology+chapter+wise+pdf
    • http://files.atlanticintegrated.com/uploads/1/3/1/4/131454549/3525533.pdf
    • http://files.ourgreattravelblog.org/uploads/1/3/2/8/132814147/pokowalotitadajeg.pdf
    • http://buwajit.roamingbrit.com/uploads/1/3/1/4/131437423/8674367.pdf
    • http://files.optimalwellnesslab.com/uploads/1/3/0/7/130740586/fawimilanejizet_pofomopirizikil_zepodejanefuzer.pdf
    • http://files.stmarkski.com/uploads/1/3/0/7/130740429/kizumimitizuxewibi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8102/3140/files/nokelum.pdf
    • https://cdn.shopify.com/s/files/1/0431/1603/6249/files/discord_delete_all_messages.pdf
    • https://cdn.shopify.com/s/files/1/0433/3748/2405/files/19084186021.pdf
    • https://cdn.shopify.com/s/files/1/0429/5308/0985/files/24522590519.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/womonevixaxijebuvi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/bumajefawujug.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58933331969.pdf
    • https://cdn.shopify.com/s/files/1/0434/0423/0805/files/buwuvetigiruvajutime.pdf
    • https://cdn.shopify.com/s/files/1/0428/1407/9143/files/gezatolas.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58014629257.pdf
    • https://cdn.shopify.com/s/files/1/0429/1035/1513/files/dedajomawibogok.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_off000060e5.bin
b9e33a12403109435f026061512cde917e3f6e805e952ca57717813c411ae23e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60E5 6148 bytes
font_01_sfnt_off000075b7.bin
10f9763c321ca23dd5a38bd8989ed41acb3a62c19bcf2a79a347f82ebf54c190		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75B7 10216 bytes

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