MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'happy birthday images with quotes' and the malicious URL. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves tricking the user into visiting a malicious URL via embedded 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.ru/pify?keyword=happy+birthday+images++with+quotes
- http://files.ravenaterra.com/uploads/1/3/1/8/131860060/2c400.pdf
- http://korerofe.trrope.com/uploads/1/3/1/3/131380183/vapufibunuloxovetav.pdf
- https://cdn.shopify.com/s/files/1/0430/7540/3936/files/9960222628.pdf
- https://cdn.shopify.com/s/files/1/0434/0157/6615/files/48315858107.pdf
- https://cdn.shopify.com/s/files/1/0434/2287/5797/files/brushless_dc_motor_specifications.pdf
- https://cdn.shopify.com/s/files/1/0434/0944/0933/files/kujeju.pdf
- https://cdn.shopify.com/s/files/1/0435/8687/9651/files/45532669694.pdf
- https://cdn.shopify.com/s/files/1/0429/7061/1871/files/70009242535.pdf
- https://cdn.shopify.com/s/files/1/0429/5173/7498/files/sap_merchandising_and_assortment_planning.pdf
- https://cdn.shopify.com/s/files/1/0429/5059/0627/files/visa_brand_guidelines.pdf
- https://cdn.shopify.com/s/files/1/0432/2230/2888/files/guvunetut.pdf
- https://cdn.shopify.com/s/files/1/0433/8896/0933/files/gisiwof.pdf
- https://cdn.shopify.com/s/files/1/0433/4921/3349/files/reduce_screen_tearing.pdf
- https://cdn.shopify.com/s/files/1/0431/0227/3703/files/kazujojuv.pdf
- https://cdn.shopify.com/s/files/1/0432/9386/8187/files/rojuzoxenizejirevelinaji.pdf
- https://cdn.shopify.com/s/files/1/0430/9218/1153/files/jusoruro.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_off000060db.binedcb26553e720835239a918e4942a651d931479f7b3e5edb9b38144f88995369 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60DB | 5764 bytes |
font_01_sfnt_off00007455.bind50eaa9256071dd3b3eaea6db81bbbf645396d46e8ddffab1c2e59782d8dd090 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7455 | 10088 bytes |
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