PDF malware analysis — malicious · 5bcc2916306e38bc

MALICIOUS

PDF

64.0 KB Created: 2020-10-28 11:17:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 51efc8649dc91ba1532a3bccb77f37f9 SHA-1: 4559228e9643b5d2a077498e0fa2796df1398f4e SHA-256: 5bcc2916306e38bc98686979b1ed855006ed49344e8101d388677397820c363d

92 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'https://ttraff.club/123?keyword=she+loves+math+graphing+polynomials'. This URL is likely used to deliver a secondary payload or redirect to a phishing site. The ML classifier also flagged the document as malicious with high confidence. The document body contains obfuscated text and embedded URLs, further supporting the malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9572

Heuristics 2

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.
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/123?keyword=she+loves+math+graphing+polynomials
- https://sonuboguf.weebly.com/uploads/1/3/4/3/134310015/safejilarox_joxejo_falabu_jupeponakus.pdf
- https://latenenagizogip.weebly.com/uploads/1/3/2/6/132696064/181eda.pdf
- https://zufugorutamivas.weebly.com/uploads/1/3/4/4/134401118/vogelasedul.pdf
- https://cdn-cms.f-static.net/uploads/4369308/normal_5f9086d4f4086.pdf
- https://cdn-cms.f-static.net/uploads/4373757/normal_5f94cc002ac29.pdf
- https://xakexoxos.weebly.com/uploads/1/3/4/3/134307698/cde2f9d7bf6ea3.pdf
- https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4045700.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0268/7614/9947/files/solidworks_2015_downloads.pdf
- https://s3.amazonaws.com/jiguwuzobozobaz/87283892127.pdf
- https://s3.amazonaws.com/vitelitubovuluj/rosaperavidesovibe.pdf
- https://s3.amazonaws.com/libosokune/kunoxoju.pdf
- https://s3.amazonaws.com/tetazino/carnot_cycle_efficiency_derivation.pdf
- https://s3.amazonaws.com/pugomonapoxuxe/cambium_vascular_function.pdf
- https://s3.amazonaws.com/susopuzupure/may_month_calendar_2018.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_005_off0000f13b.bin` `6de5d668423a0f2a7c2201a8918a642abec8da40ffa94dd9ca3a5cb93886b1c8`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xF13B	4994 bytes
`font_00_sfnt_off0000dea8.bin` `2800d66ef5f3e6d811926ca818107a45fd6182034723e13dd4b37dc3535b8de1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDEA8	5500 bytes

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