MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains a lure promising free antivirus software for Android phones, with embedded links directing users to a malicious redirector. The ML classifier strongly indicated maliciousness, and the presence of numerous external links, including one to a known malicious redirector, supports a phishing or scam attack pattern. Although no scripts were explicitly extracted, the PDF structure itself facilitates the embedding of malicious links.
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.cc/pify?keyword=free+antivirus+for+my+android+phone
- http://files.tateliberaswanson.com/uploads/1/3/1/4/131411688/3546704.pdf
- http://files.efccc.net/uploads/1/3/1/0/131070313/luxawapofomu.pdf
- http://sezabag.claudechandlerartist.com/uploads/1/3/0/9/130969742/putugoxoviwe.pdf
- http://zulon.qmhiconsulting.com/uploads/1/3/0/7/130775918/woveperoraw.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/8990/3264/files/gusijiwabidutaxi.pdf
- https://cdn.shopify.com/s/files/1/0429/2250/8447/files/xemuligefabuponanolupe.pdf
- https://cdn.shopify.com/s/files/1/0431/0119/2352/files/xoxasunoz.pdf
- https://cdn.shopify.com/s/files/1/0431/5657/0266/files/kewekuse.pdf
- https://cdn.shopify.com/s/files/1/0433/3066/6651/files/knock_knee_exercise.pdf
- https://cdn.shopify.com/s/files/1/0438/8388/8808/files/dilapovakarututatape.pdf
- https://cdn.shopify.com/s/files/1/0430/0632/8985/files/hematology_lab_equipment.pdf
- https://cdn.shopify.com/s/files/1/0431/9969/2958/files/57876421694.pdf
- https://cdn.shopify.com/s/files/1/0430/3139/6501/files/jatidikaroxiruzusuxusobod.pdf
- https://cdn.shopify.com/s/files/1/0435/1868/9432/files/totil.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_off00007878.binc97cf5a02aeeb3d7274b5018508494286c754d7af9e55780401590de717dc322 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7878 | 5368 bytes |
font_01_sfnt_off00008a9b.binabbd4caaf30a68a6f17d0667164d880601486273ea165b2853c7dd7daa085b98 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A9B | 10720 bytes |
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