MALICIOUS
154
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 benign Shopify domains, but one critical link directs to a known malicious redirector. The document body and metadata suggest a lure related to "brain drain solutions" and the use of wkhtmltopdf, indicating an attempt to disguise malicious content. The presence of a malicious redirector strongly suggests the intent to lead the user to a malicious site for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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=brain+drain+solutions+pdf
- http://files.immaculataschool.org/uploads/1/3/0/8/130813988/76ab218c2.pdf
- http://files.defy-foundation.org/uploads/1/3/1/4/131438013/feb5acc.pdf
- http://files.thisismayfield.com/uploads/1/3/0/7/130776861/xebenov.pdf
- http://files.designsiteswithseo.com/uploads/1/3/1/4/131406607/1782384.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/0645/1094/files/rukemobewot.pdf
- https://cdn.shopify.com/s/files/1/0438/8713/2827/files/python_udp_server.pdf
- https://cdn.shopify.com/s/files/1/0434/0455/8488/files/sims_4_no_mosaic_mod.pdf
- https://cdn.shopify.com/s/files/1/0431/3723/7146/files/the_animator_s_survival_kit_free_download.pdf
- https://cdn.shopify.com/s/files/1/0436/6175/4518/files/pool_table_new_rules.pdf
- https://cdn.shopify.com/s/files/1/0447/9208/6685/files/eighteenth_brumaire_of_louis_bonaparte.pdf
- https://cdn.shopify.com/s/files/1/0427/6014/3014/files/7444287358.pdf
- https://cdn.shopify.com/s/files/1/0428/7637/1110/files/94859095832.pdf
- https://cdn.shopify.com/s/files/1/0432/7017/6928/files/ditexexasivawivona.pdf
- https://cdn.shopify.com/s/files/1/0438/3706/3328/files/fenupusomimoxabefizulof.pdf
- https://cdn.shopify.com/s/files/1/0428/3249/4751/files/delete_all_favorites_on_twitter.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000063f1.bina909bf2388e6b1135d56d43203b61612021f986e2eebbd185521b17f062c356a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63F1 | 5084 bytes |
font_01_sfnt_off0000754b.binfc3b6cce800a5afb72c20c5bd17167a161cbfc6d6c4f5047d97c3d006b091420 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x754B | 9876 bytes |
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