MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a high number of embedded links, many pointing to Shopify domains, forming a link farm. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com'. The document body, though heavily garbled, contains the text 'blackmart latest version apkuncle' and the redirector URL, suggesting a lure related to software downloads. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the link farm and redirector indicate a likely distribution or redirection mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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/wix?keyword=blackmart+latest+version++apkuncle In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6383/6834/files/monegudifezunulafofev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2929/1427/files/wutudogimojubomedowumix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6558/0449/files/52214260416.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/7930/6135/files/18108940937.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/7389/4555/files/definition_of_tumblr.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0767/9397/files/89589827897.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6797/4556/files/gubupuvipavafe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8442/1022/files/kakezosesepaxebagima.pdfIn PDF document text
- https://static.usrfiles.com/ugd/405339_df40eea012ca4e5e823cfbb50c4f459c.pdfIn PDF document text
- https://static.usrfiles.com/ugd/d775a9_5d5a4c6e69de4ffbb5ac17f228a0f813.pdfIn PDF document text
- https://static.usrfiles.com/ugd/90423f_a12e3ae96f024b56b55c4f15873b5f68.pdfIn PDF document text
- https://static.usrfiles.com/ugd/4b68be_f93049a2fed6410ca88f74c9080353e0.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000074c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74C4 | 5252 bytes |
SHA-256: 952bd287f9c9847d7ca179f7698c8f9ca576be0216c1a75e58a42cc52b6a3720 |
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font_01_sfnt_off0000868c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x868C | 1800 bytes |
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e |
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font_02_sfnt_off00008f1a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F1A | 10036 bytes |
SHA-256: abc05a1ec952ac10542ee1f3fddb1084595a6c059d1fb8e45da5d41cd36a5122 |
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font_03_sfnt_off0000b190.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB190 | 16368 bytes |
SHA-256: 552e926f59ef53231249b6015cc51882b512f7a40c6b17c25f707dc25a221893 |
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