Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa895f2b8981eef…

MALICIOUS

PDF

46.8 KB Created: 2020-08-10 14:03:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b17bfc2e56661a8abf2f5ddab27c713d SHA-1: b3e0292b34862570f425ebc5cc051ad1a67fda98 SHA-256: 2fa895f2b8981eef4e1977606da10758492b44dcd53eb9bbb79be79aef893815
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one pointing to a known malicious redirector. The document body is heavily obfuscated and appears to be junk data, but the presence of numerous external links suggests a link farm or redirection tactic. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, limiting the analysis of direct payload delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=carrier+floor+standing+air+conditioner+pdf
    • http://files.blackbeltacademyfortpayne.com/uploads/1/3/2/3/132303269/5915198.pdf
    • http://files.complete-instructor-training.co.uk/uploads/1/3/1/0/131070845/6512419.pdf
    • http://files.gitchgear.com/uploads/1/3/1/3/131379591/1a0ba6a6.pdf
    • http://files.dlplastictech.com/uploads/1/3/0/8/130873804/2834c62.pdf
    • http://files.islaviolinecolodge.com/uploads/1/3/0/7/130775940/fejuxip.pdf
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/78971876408.pdf
    • https://cdn.shopify.com/s/files/1/0437/7467/3057/files/poraxedi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/kajowu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0041/3856/files/69310682277.pdf
    • https://cdn.shopify.com/s/files/1/0435/3022/3775/files/bavubijojixikuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/8660/1635/files/62840722136.pdf
    • https://cdn.shopify.com/s/files/1/0431/7272/4892/files/bhagavad_gita_quotes_kannada.pdf
    • https://cdn.shopify.com/s/files/1/0432/3206/7739/files/71844558738.pdf
    • https://cdn.shopify.com/s/files/1/0432/0677/0843/files/botisasifujimiwuguvobe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xibazukikamemawamiwemin.pdf
    • https://cdn.shopify.com/s/files/1/0437/0412/3557/files/cluster_web_graphic_organizer.pdf
    • https://cdn.shopify.com/s/files/1/0428/8738/1155/files/81940017021.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_off0000790f.bin
a98c566db8c71c48fda5c7b4f0f9b2d4439625b00038c08a8586e0447de3f31c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x790F 5228 bytes
font_01_sfnt_off00008ae7.bin
9181d390fb14cbab096d9bccb326fd90b37689df085056fd862203df042363d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE7 10112 bytes

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