Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd18f8d0875be88c…

MALICIOUS

PDF

65.3 KB Created: 2020-08-19 23:38:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49a1e505741222be8aacd6a24cbcaa06 SHA-1: 7c35d704fe88ac2c57e8a972569f3126db80ede6 SHA-256: bd18f8d0875be88c076c953b13e998f45ce893ceb334a4d89d7eb4d2f900dd3c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=ireport+not+loading'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0433/5498/0505/files/mabomafep.pdf'. The document body contains garbled text but includes the malicious URL, suggesting an attempt to disguise or embed the malicious link within the document 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.ru/pify?keyword=ireport+not+loading
    • http://files.smafarms.com/uploads/1/3/2/3/132303118/7071631.pdf
    • http://giviwenuj.kingharvscoffee.com/uploads/1/3/1/4/131412713/febul-joveveparaz.pdf
    • http://kezimul.unifynb.com/uploads/1/3/2/7/132741024/gikobi-fosugos.pdf
    • http://files.alexandrudina.com/uploads/1/3/0/7/130740124/donirugor-zukosilenav.pdf
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/mabomafep.pdf
    • https://cdn.shopify.com/s/files/1/0435/5316/1367/files/slope_stability_analysis_excel_spreadsheet.pdf
    • https://cdn.shopify.com/s/files/1/0437/3574/4673/files/wusokobibalila.pdf
    • https://cdn.shopify.com/s/files/1/0436/8993/5003/files/calculus_the_classic_edition.pdf
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/paint_sprayers_unlimited.pdf
    • https://cdn.shopify.com/s/files/1/0428/6090/4615/files/korumovaxibanavinumow.pdf
    • https://cdn.shopify.com/s/files/1/0431/1829/7245/files/56254956703.pdf
    • https://cdn.shopify.com/s/files/1/0432/8862/5302/files/58493609192.pdf
    • https://cdn.shopify.com/s/files/1/0437/0091/2278/files/55386361787.pdf
    • https://cdn.shopify.com/s/files/1/0437/7726/1729/files/gosogevelodokoged.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_off00006847.bin
13e3bf787b7f37e545528d6560c75a63bd303719df50874eb1f78671c7e67576		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6847 26516 bytes
font_01_sfnt_off0000ba2c.bin
c4ef901ed6d8f472d89694cff01f14a0fee3b2277e3efec764408da938a5a4d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA2C 4888 bytes
font_02_sfnt_off0000cacf.bin
395d232e049e1b58d4b6b3c9dc69d1e8097ce83c049397c3ba82301b46456f21		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCACF 14268 bytes

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