Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab347d2a2db42e08…

MALICIOUS

PDF

54.8 KB Created: 2020-09-11 03:49:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 042e53515ef15608b53e6dad9ecb40f0 SHA-1: 0b3d6e3808bcc2fd505429dc7c3c9c96f2fbc1f1 SHA-256: ab347d2a2db42e0880667cb26be5f2adc142aca421d539cb34c634de3cdedfeb
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'disclosure statement template real estate'. The primary malicious URL identified is https://ttraff.club/pify?keyword=disclosure+statement+template+real+estate, which is likely used to redirect the user to further malicious content. The presence of multiple SEO-like PDF links suggests a link farm strategy to obscure the true malicious destination.

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.club/pify?keyword=disclosure+statement+template+real+estate
    • http://files.arielcao.com/uploads/1/3/1/0/131070866/boloperaxuraxawov.pdf
    • http://zefes.egcssa.com/uploads/1/3/1/4/131454151/2631184.pdf
    • http://kojexas.theskinstudioltd.com/uploads/1/3/0/7/130740169/zumibegedi-bonizosupafe-nepewuxoxekoruw-bodubedovopiwu.pdf
    • http://jubuse.dolcewrites.com/uploads/1/3/0/7/130776407/7964b5855d.pdf
    • http://files.johnsonmorrisfamily.com/uploads/1/3/1/4/131483214/dilokamikosesub.pdf
    • https://cdn.shopify.com/s/files/1/0434/2349/8396/files/android_studio_google_maps_api_key.pdf
    • https://cdn.shopify.com/s/files/1/0438/3201/7058/files/praxis_5001_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/15012409902.pdf
    • https://cdn.shopify.com/s/files/1/0434/5823/2473/files/39936002836.pdf
    • https://cdn.shopify.com/s/files/1/0457/6886/8006/files/88421141869.pdf
    • https://static.usrfiles.com/ugd/f390e7_79fc3a109f7846b6836f15ece82eb749.pdf
    • https://static.usrfiles.com/ugd/33c377_c83d390bad5e4091a3cf1e343db57877.pdf
    • https://static.usrfiles.com/ugd/eb5a6a_41965c3a87404bc7ad080447e0a13fee.pdf
    • https://static.usrfiles.com/ugd/4cd51e_80438176d877454ea1d0f550513f6886.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_off00009a41.bin
0401997d232e769d106f3013d2b69f972e3ae9fb2993cc73846c06827ce0a6ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A41 5076 bytes
font_01_sfnt_off0000ab73.bin
f9ed8bdabe028e769e0c2ad09d135e4adfbe3fc6a0a7ab5e0d86a7803d57ab91		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB73 10084 bytes

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