MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF is identified as an image-only lure designed to trick users into clicking a link. It contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=background+hd+cb'. Additionally, it features a PDF link farm, with many links hosted on cdn.shopify.com, some of which are confirmed benign, but others are unknown. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 2 text block(s), carries a click-outward action, and is only 31 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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.ru/pify?keyword=background+hd+cb
- http://files.randyrosedance.com/uploads/1/3/1/8/131857565/wefunotobojuzur_gawodoruk.pdf
- http://files.chassepermanentmakeup.com/uploads/1/3/1/8/131871907/e60d6.pdf
- https://cdn.shopify.com/s/files/1/0431/5214/6587/files/lemuregirekepa.pdf
- https://cdn.shopify.com/s/files/1/0427/9776/0668/files/zipufokadaw.pdf
- https://cdn.shopify.com/s/files/1/0436/7400/9753/files/19759038381.pdf
- https://cdn.shopify.com/s/files/1/0450/8804/7256/files/kbs_to_mbs.pdf
- https://cdn.shopify.com/s/files/1/0432/8439/8244/files/gomugejuda.pdf
- https://cdn.shopify.com/s/files/1/0436/9580/0475/files/wusifilimuto.pdf
- https://cdn.shopify.com/s/files/1/0432/1666/6786/files/55982471579.pdf
- https://cdn.shopify.com/s/files/1/0435/1574/0314/files/nevubebuzusasub.pdf
- https://cdn.shopify.com/s/files/1/0428/5975/7734/files/90948722083.pdf
- https://cdn.shopify.com/s/files/1/0430/4742/0066/files/32756944955.pdf
- https://cdn.shopify.com/s/files/1/0428/1909/2647/files/mole_ratio_practice_answer_key.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000043c0.bin82939b7cc6e64ab675920d1409c7e5e242372eaa1c3680a425fe5b4f10943314 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x43C0 | 5244 bytes |
font_01_sfnt_off00005588.bin4d5eed67536d7bcddac065d0d340f537cf1863d924b4c37e30b618329191ef47 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5588 | 8080 bytes |
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