PDF malware analysis — malicious · 558296986f8b6727

MALICIOUS

PDF

34.7 KB Created: 2020-11-02 07:10:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 33b4b0ef27cd355b4c9e4c9cd6d71317 SHA-1: a53bacc28ceff8a108999e2c6f70e23acb16ae56 SHA-256: 558296986f8b6727d94b3db6782011e9407a0ecd0cc970fadd09ba62fc59f86c

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a link farm designed to redirect users to malicious infrastructure. One prominent URL, https://gettraff.ru/aws?keyword=cardo+packtalk+bold+instruction+manual, is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL and other PDF links, suggesting an attempt to drive traffic to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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://gettraff.ru/aws?keyword=cardo+packtalk+bold+instruction+manual
- https://cdn-cms.f-static.net/uploads/4405420/normal_5f9c2d30dd00e.pdf
- https://cdn-cms.f-static.net/uploads/4370268/normal_5f9f8c98b2bde.pdf
- https://nakoliveb.weebly.com/uploads/1/3/4/5/134503524/mupipafubasotiwera.pdf
- https://cdn-cms.f-static.net/uploads/4403404/normal_5f9421c64ecd4.pdf
- https://cdn-cms.f-static.net/uploads/4410956/normal_5f96663a34607.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/c2863054-4754-4de7-b965-19cf2ed9d4bc/dogifazulogiwabew.pdf
- https://cdn.shopify.com/s/files/1/0506/7590/8795/files/32486597886.pdf
- https://cdn.shopify.com/s/files/1/0501/2717/5873/files/13904089671.pdf
- https://uploads.strikinglycdn.com/files/bce5293b-8496-4dc1-b737-752fba6379f4/93573229708.pdf
- https://uploads.strikinglycdn.com/files/59df7af3-d163-4c66-8ca9-fbc47bbe5993/lab_7_-_assessment_worksheet_using_encryption_to_enhance_confidentiality_and_integrity.pdf
- https://uploads.strikinglycdn.com/files/b65a3172-ed69-4810-8aef-d4ebe849fe56/77937747918.pdf
- https://cdn.shopify.com/s/files/1/0499/4573/9416/files/magic_wrap_skirt_instructions.pdf
- https://uploads.strikinglycdn.com/files/570e3408-14f0-4dc0-b36f-dfc976daa3c4/rasuwil.pdf
- https://uploads.strikinglycdn.com/files/f3a38c4f-2292-4d5e-9a12-5348725e26c1/bethany_moore_md.pdf
- https://cdn.shopify.com/s/files/1/0501/7131/4328/files/27008162259.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006018.bin` `10356388dddf448842dfa1f4750fced41f0bb3b1afb3d71c522ce9da9a5b4e52`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6018	5328 bytes

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