PDF malware analysis — malicious · a8f76319fb4b29e1

MALICIOUS

PDF

56.9 KB Created: 2020-08-22 16:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9d0e15c57cdc23396a5e90c1054cfd02 SHA-1: b4dcb1d8ed2f7aa357201eae13a99171ccd50fc0 SHA-256: a8f76319fb4b29e1b8ea0dfb55a2556c7c92793c0a516705237b5751bd0c0867

150 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 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=background+photo+editor+software', suggesting a lure related to photo editing software. The primary intent appears to be redirecting users to malicious infrastructure.

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=background+photo+editor+software
- http://fokemex.charltongolf.net/uploads/1/3/0/7/130739267/f79c17367e2d.pdf
- https://cdn.shopify.com/s/files/1/0449/7919/1966/files/abbyy_download.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/loxidunadubufurepetiverox.pdf
- https://cdn.shopify.com/s/files/1/0438/0921/0529/files/xigeridabizunawalezowuwe.pdf
- https://cdn.shopify.com/s/files/1/0430/5970/8058/files/70278428549.pdf
- https://cdn.shopify.com/s/files/1/0432/9881/6150/files/56167205824.pdf
- https://cdn.shopify.com/s/files/1/0429/3761/4499/files/84986093896.pdf
- https://cdn.shopify.com/s/files/1/0436/0765/4563/files/speak_now_1.pdf
- https://cdn.shopify.com/s/files/1/0433/2853/6726/files/b._a_pass_2_movie_in_300mb.pdf
- https://cdn.shopify.com/s/files/1/0434/7278/1478/files/contrastive_analysis_james.pdf
- https://cdn.shopify.com/s/files/1/0431/0886/0065/files/business_process_improvement_toolbox_second_edition.pdf
- https://cdn.shopify.com/s/files/1/0431/3192/8740/files/16922651642.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007a39.bin` `29618366df5a480934b86d2b1e801739b7f4e79cd6ba0cca6fa9eace334f6d20`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A39	5472 bytes
`font_01_sfnt_off00008cdc.bin` `baa14baaf05d4f7a4f1394c5ac31f521e035f37ad67e84921a7e0190898894e9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CDC	10340 bytes
`font_02_sfnt_off0000b05b.bin` `523da372c8bca1c3f2b5984769f8a524808494e970e2ed454b82532fbdefea53`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB05B	16836 bytes
`font_03_sfnt_off0000c822.bin` `ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC822	4324 bytes

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